SUSE Linux Enterprise 15カーネルが更新され、さまざまなセキュリティおよびバグの修正が行われています。

以下のセキュリティバグが修正されました。

CVE-2020-36312: kmalloc 失敗時に kvm_io_bus_unregister_dev メモリリークを生じさせる virt/kvm/kvm_main.c の問題を修正しました (bnc#1184509)。

CVE-2021-29650: netfilter サブシステムでは、net/netfilter/x_tables.c と include/linux/netfilter/x_tables.h が新しいテーブル値の割り当て時に完全なメモリバリアを欠いているため、攻撃者がサービス拒否 (パニック) を引き起こす可能性があります (bnc#1184208)。

CVE-2021-29155: ポインター計算に対して望ましくない領域外の投機を実行し、サイドチャネル攻撃が引き起こすこの攻撃では Spectre の緩和策が無効にされ、カーネルメモリから機密情報が取得される kernel/bpf/verifier.c 内の問題を修正しました。具体的には、一連のポインター演算操作で、最初の操作で実行されたポインターの変更が、後続の操作を制限するときに正しく考慮されません (bnc#1184942)。

CVE-2020-36310: 特定のネストされたページフォールトに対して set_memory_region_test の無限ループを可能にする arch/x86/kvm/svm/svm.c の問題を修正しました (bnc#1184512)。

CVE-2020-27673: ゲスト OS ユーザーが dom0 への高レートのイベントを介してサービス拒否 (ホスト OS のハングアップ) を引き起こす可能性がある Xen の問題を修正しました (bnc#1177411、bnc#1184583)。

CVE-2021-29154: カーネルコンテキスト内で任意のコードを実行できる BPF JIT コンパイラを修正しました (bnc#1184391)。

CVE-2020-25673: llcp_sock_connect() の繰り返しによって引き起こされる NFC 無限ループを修正しました (bsc#1178181)。

CVE-2020-25672: llcp_sock_connect() の NFC メモリリークを修正しました (bsc#1178181)。

CVE-2020-25671: llcp_sock_connect() の NFC メモリリークを修正しました (bsc#1178181)。

CVE-2020-25670: llcp_sock_bind() の NFC メモリリークを修正しました (bsc#1178181)。

CVE-2020-36311: arch/x86/kvm/svm/sev.c により、攻撃者は大規模な SEV VM (多くの暗号化された領域の登録解除を必要とする) の破壊をトリガーすることにより、サービス拒否 (ソフトロックアップ) を引き起こすことが可能です (bnc#1184511)。

CVE-2021-28950: 再試行ループが同じ不良 inode を継続的に検出するために「CPU のストール」が発生する可能性がある、fs/fuse/fuse_i.h の問題を修正しました (bnc#1184194、bnc#1184211)。

CVE-2020-36322: 不適切な状況で fuse_do_getattr() が make_bad_inode() を呼び出し、システムクラッシュを引き起こす FUSE ファイルシステムの実装内の問題を修正しました。注: この脆弱性に対する元の修正は不完全であり、その不完全性は CVE-2021-28950として追跡されています (bnc#1184211)。

CVE-2021-30002: Web カメラデバイスが存在する場合のメモリリークの問題を修正しました (bnc#1184120)。

CVE-2021-3483: nosy_ioctl() におけるメモリ解放後使用 (Use After Free) のバグを修正しました (bsc#1184393)。

CVE-2021-20219: Linux カーネルの drivers/tty/n_tty.c でサービス拒否の脆弱性を修正しました。この欠陥では、通常のユーザー権限を持つローカルの攻撃者がループを遅延させ、システムの可用性に脅威を与える可能性があります (bnc#1184397)。

CVE-2021-28964: クローン操作の前にエクステントバッファのロックがないためにサービス拒否を引き起こす可能性があった fs/btrfs/ctree.c の競合状態を修正しました (bnc#1184193)。

CVE-2021-3444: ソースレジスタが 0 であることが判明している場合に mod32 デスティネーションレジスタの切り捨てを適切に処理しない bpf 検証機能の問題を修正しました。bpf プログラムをロードできるローカルの攻撃者が、これを利用して、カーネルメモリの領域外読み取りを行う可能性があります。これにより、コード実行につながる可能性のある領域外書き込みが引き起こされる可能性があります (bnc#1184170)。

CVE-2021-28971: intel_pmu_drain_pebs_nhm で、PEBS レコードの PEBS ステータスが不適切に処理されるためにユーザー空間アプリケーションがシステムクラッシュを引き起こす可能性がある、ローカルのサービス拒否の可能性を修正しました (bnc#1184196)。

CVE-2021-28688: 後続のクリーンアップコードが初期化されていない、または古い値を使用しないように、ポインターの初期化を含める XSA-365 を修正しました。この初期化が過剰に行われ、特定の条件下で、クリーンアップが必要なポインターも上書きする可能性があります。
クリーンアップの欠如により、永続的な付与が漏洩する可能性があります。この漏洩は、それぞれのゲストが死んだ後の完全なクリーンアップ防ぎ、ゾンビドメインを残します (bnc#1183646)。

CVE-2021-29265: - ローカルと共有のステータスの更新中にスタブアップシーケンスの競合状態があるため、攻撃者がサービス拒否 (GPF) を引き起こす可能性がある drivers/usb/usbip/stub_dev.c の usbip_sockfd_store の問題を修正しました (bnc#1184167)。

CVE-2021-29264: 攻撃者がシステムクラッシュを引き起こす可能性のある Freescale Gianfar Ethernet ドライバーの drivers/net/ethernet/freescale/gianfar.c の問題を修正しました。この問題は、ジャンボパケットが使用され、NAPI が有効になっているとき、rx キューオーバーランが発生し NID が有効な場合にマイナスのフラグメントサイズが計算されるために発生します (bnc#1184168)。

CVE-2021-28972: ユーザー空間からドライバーに新しいデバイス名を書き込む場合に、RPA PCI ホットプラグドライバーに、ユーザーが許容可能なバッファオーバーフローが存在する drivers/pci/hotplug/rpadlpar_sysfs.c の問題を修正しました。この問題により、ユーザー空間がカーネルスタックフレームに直接データを書き込む可能性があります。これは、add_slot_store と remove_slot_store が drc_name の「\0」終了を誤って処理するために発生します。(bnc#1184198)

CVE-2021-29647: 部分的に初期化されていないデータ構造が原因で、攻撃者がカーネルメモリから機密情報を取得する可能性がある net/qrtr/qrtr.c のカーネル qrtr_recvmsg の問題を修正しました (bnc#1184192)。

CVE-2020-27171: ポインター計算に対する領域外の投機に影響する off-by-one エラー (その結果整数アンダーフローが発生) を持つ kernel/bpf/verifier.c の問題を修正しました。この問題により、Spectre の緩和策が無効にされ、カーネルメモリから機密情報が取得されるサイドチャネル攻撃が引き起こされます (bnc#1183686、bnc#1183775)。

CVE-2020-27170: ポインター計算に対して望ましくない領域外の投機を実行し、Spectre の緩和策が無効にしたり、カーネルメモリから機密情報が取得されたりするサイドチャネル攻撃を引き起こす kernel/bpf/verifier.c の問題を修正しました。これは、ptr_limit を定義しないポインタータイプに影響します。(bnc#1183686 bnc#1183775)

CVE-2021-28660: ssid 配列の終端を超えて書き込む可能性のある drivers/staging/rtl8188eu/os_dep/ioctl_linux.c 内の rtw_wx_set_scan の問題を修正しました (bnc#1183593)。

CVE-2020-35519: x25 修正のパッチリファレンスを更新します (bsc#1183696)。

CVE-2021-3428: ext4_es_cache_extent の ext4 整数オーバーフローを修正しました (bsc#1173485、bsc#1183509)。

CVE-2020-0433: 不適切なロックによるメモリ解放後使用 (Use After Free) が発生する可能性のある blk-mq-tag.c の blk_mq_queue_tag_busy_iter を修正しました。
これにより、追加の実行権限が不要になり、ローカルで権限が昇格される可能性があります。悪用するのにユーザーの操作は必要ありません(bnc#1176720)。

CVE-2021-28038: Xen PV の問題を修正しました。netbackドライバーの特定の部分で、失敗したメモリ割り当てなどのエラー(割り当てマッピングエラーの処理に対する変更結果として)の必要な処理が欠けています。ホストOSのサービス拒否が、ネットワークフロントエンドドライバーが誤動作している中に発生する可能性があります。注: この問題は CVE-2021-26931 の修正が不完全なために存在します (bnc#1183022、bnc#1183069)。

CVE-2020-27815: dbAdjTree の jfs 配列インデックス境界チェックを修正します (bsc#1179454)。

CVE-2021-27365: 適切な長さの制約またはチェックがなく、PAGE_SIZE 値を超える可能性がある iSCSI データ構造内の問題を修正しました。権限のないユーザーが、iSCSI に関連付けられ、Netlink メッセージの最大長までの長さがある Netlink メッセージを送信することが可能です (bnc#1182715)。

CVE-2021-27363: iscsi_transport 構造体のアドレスの判別に使用される可能性があるカーネルポインター漏洩の問題を修正しました。iSCSIトランスポートがiSCSIサブシステムに登録されている場合、/sys/class/iscsi_transport/$TRANSPORT_NAME/handleで、権限のないユーザーがsysfsファイルシステムを介してトランスポートの処理を利用できます。読み取りの場合は、show_transport_handle関数(drivers / scsi / scsi_transport_iscsi.c内の)が呼び出され、処理が漏洩します。この処理は、実際にはカーネルモジュールのグローバル変数内の　iscsi_transport 構造体へのポインターとなっています (bnc#1182716)。

CVE-2021-27364: 権限のないユーザーが Netlink メッセージを細工できる可能性がある drivers/scsi/scsi_transport_iscsi.c の問題を修正しました (bnc#1182717)。

更新パッケージには、セキュリティ関連以外の修正も含まれています。詳細については、アドバイザリを参照してください。

注意:Tenable Network Securityは、前述の記述ブロックをSUSEセキュリティアドバイザリから直接抽出しています。Tenable では、そこに新しい問題を追加することはせずに、できる限り自動的に整理と書式設定をするようにしています。

SUSE Linux Enterprise 15 SP2カーネルRTが更新され、さまざまなセキュリティおよびバグの修正が行われています。

以下のセキュリティバグが修正されました。

CVE-2021-3444: ソースレジスタが 0 であることが判明している場合に mod32 デスティネーションレジスタの切り捨てを適切に処理しない bpf 検証機能の問題を修正しました。これは領域外読み取りを引き起こします (bsc#1184170)。

CVE-2021-3428: ext4_es_cache_extent の整数オーバーフローを修正しました (bsc#1173485)。

CVE-2021-29647: 部分的に初期化されていないデータ構造が原因で、攻撃者がカーネルメモリから機密情報を取得する可能性がある qrtr_recvmsg の問題を修正しました (bsc#1184192)。

CVE-2021-29265: usbip_sockfd_store の問題を修正しました。この問題により、ローカルおよび共有ステータスの更新中の競合状態により、攻撃者がサービス拒否を引き起こす可能性がありました (bsc#1184167)。

CVE-2021-29264: 負のフラグメントサイズの計算により、攻撃者がシステムクラッシュを引き起こす可能性があった、Freescale Gianfar Ethernet ドライバーの問題を修正しました (bsc#1184168)。

CVE-2021-28972: - ユーザー空間からドライバーに新しいデバイス名を書き込む場合に、ユーザー空間がカーネルスタックフレームに直接データを書き込む可能性があるユーザーが許容可能なバッファオーバーフローを修正しました (bsc#1184198)。

CVE-2021-28971: PEBS レコードの PEBS ステータスが不適切に処理されたためにシステムクラッシュを引き起こす可能性があった intel_pmu_drain_pebs_nhm の問題を修正しました (bsc#1184196)。

CVE-2021-28964: 攻撃者がサービス拒否を引き起こす可能性のある get_old_root の競合状態を修正しました (bsc#1184193)。

CVE-2021-28688: XSA-365 によって導入された問題を修正しました (bsc#1183646)。

CVE-2021-28660: rtw_wx_set_scan での領域外書き込みを修正しました (bsc#1183593)。

CVE-2021-28375: ユーザーアプリケーションがカーネル RPC メッセージを送信することを妨げなかった fastrpc_internal_invoke の問題を修正しました (bsc#1183596)。

CVE-2021-28038: 失敗したメモリ割り当てなどの必要なエラーの処理が欠如していた netback ドライバーの問題を修正しました (bsc#1183022)。

CVE-2021-27365: 権限のないユーザーが、iSCSI に関連付けられ、Netlink メッセージの最大長までの長さがある Netlink メッセージを送信することが可能です (bsc#1182715)。

CVE-2021-27364: 攻撃者が Netlink メッセージを細工する可能性がある問題を修正しました (bsc#1182717)。

CVE-2021-27363: iscsi_transport 構造体のアドレスの判別に使用される可能性があるカーネルポインターの漏洩を修正しました (bsc#1182716)。

CVE-2020-35519: x25_bind で見つかった領域外メモリアクセスを修正しました (bsc#1183696)。

CVE-2020-27815: 攻撃者がコードを実行する可能性がある、JFS ファイルシステムの問題を修正しました (bsc#1179454)。

CVE-2020-27171: Spectre の緩和策が無効にされ、カーネルメモリから機密情報が取得するサイドチャネル攻撃を引き起こす、ポインター計算の領域外の投機に影響を与える off-by-one エラーを修正しました (bsc#1183775)。

CVE-2020-27170: Spectre の緩和を無効にし、カーネルメモリから機密情報を取得する潜在的なサイドチャネル攻撃を修正しました (bsc#1183686)。

CVE-2019-19769: perf_trace_lock_acquire 関数のメモリ解放後使用 (Use After Free) を修正しました (bsc#1159280)。

CVE-2019-18814: aa_audit_rule_init() で aa_label_parse() が失敗する場合のメモリ解放後使用 (Use After Free) を修正しました (bsc#1156256)。

CVE-2020-25670、CVE-2020-25671、CVE-2020-25672、CVE-2020-25673: NFC サブシステムの複数のバグを修正しました (bsc#1178181)。

CVE-2020-36311: 大きな SEV VM の破壊を発生させることによるサービス拒否 (ソフトロックアップ) を修正しました (bsc#1184511)。

CVE-2021-29154: 任意のコードの実行が可能になる分岐変位の不適切な計算を修正しました。(bsc#1184391)

CVE-2021-30002: video_usercopy の大きな引数のメモリリークを修正しました (bsc#1184120)。

CVE-2021-3483: nosy.c におけるメモリ解放後使用 (Use After Free) の問題を修正しました (bsc#1184393)。

CVE-2020-36310: 特定のネストされたページフォールトの無限ループを修正しました (bsc#1184512)。

CVE-2020-36312: kmalloc エラー時のメモリリークを修正しました (bsc#1184509)。

CVE-2021-28950: 再試行ループが同じ不良の inode を継続的に見つけていたために発生する、fs/fuse/fuse_i.h の問題を修正しました (bsc#1184194)。

更新パッケージには、セキュリティ関連以外の修正も含まれています。詳細については、アドバイザリを参照してください。

注意:Tenable Network Securityは、前述の記述ブロックをSUSEセキュリティアドバイザリから直接抽出しています。Tenable では、そこに新しい問題を追加することはせずに、できる限り自動的に整理と書式設定をするようにしています。

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in the Linux kernel before     5.11.7. usbip_sockfd_store in     drivers/usb/usbip/stub_dev.c allows attackers to cause     a denial of service (GPF) because the stub-up sequence     has race conditions during an update of the local and     shared status, aka CID-9380afd6df70.(CVE-2021-29265)

  - A race condition was discovered in get_old_root in     fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It     allows attackers to cause a denial of service (BUG)     because of a lack of locking on an extent buffer before     a cloning operation, aka     CID-dbcc7d57bffc.(CVE-2021-28964)

  - In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux     kernel through 5.11.8, the RPA PCI Hotplug driver has a     user-tolerable buffer overflow when writing a new     device name to the driver from userspace, allowing     userspace to write data to the kernel stack frame     directly. This occurs because add_slot_store and     remove_slot_store mishandle drc_name '\0' termination,     aka CID-cc7a0bb058b8.(CVE-2021-28972)

  - An issue was discovered in the Linux kernel before     5.8.10. virt/kvm/kvm_main.c has a     kvm_io_bus_unregister_dev memory leak upon a kmalloc     failure, aka CID-f65886606c2d.(CVE-2020-36312)

  - An issue was discovered in the Linux kernel before 5.9.
    arch/x86/kvm/svm/sev.c allows attackers to cause a     denial of service (soft lockup) by triggering     destruction of a large SEV VM (which requires     unregistering many encrypted regions), aka     CID-7be74942f184.(CVE-2020-36311)

  - BPF JIT compilers in the Linux kernel through 5.11.12     have incorrect computation of branch displacements,     allowing them to execute arbitrary code within the     kernel context. This affects     arch/x86/net/bpf_jit_comp.c and     arch/x86/net/bpf_jit_comp32.c.(CVE-2021-29154)

  - An issue was discovered in the Linux kernel before     5.11.8. kernel/bpf/verifier.c performs undesirable     out-of-bounds speculation on pointer arithmetic,     leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from     kernel memory, aka CID-f232326f6966. This affects     pointer types that do not define a     ptr_limit.(CVE-2020-27170)

  - An issue was discovered in the Linux kernel before     5.11.8. kernel/bpf/verifier.c has an off-by-one error     (with a resultant integer underflow) affecting     out-of-bounds speculation on pointer arithmetic,     leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from     kernel memory, aka CID-10d2bb2e6b1d.(CVE-2020-27171)

  - An out-of-bounds (OOB) memory access flaw was found in     x25_bind in net/x25/af_x25.c in the Linux kernel     version v5.12-rc5. A bounds check failure allows a     local attacker with a user account on the system to     gain access to out-of-bounds memory, leading to a     system crash or a leak of internal kernel information.
    The highest threat from this vulnerability is to     confidentiality, integrity, as well as system     availability.(CVE-2020-35519)

  - An issue was discovered in the Linux kernel through     5.11.10. drivers/net/ethernet/freescale/gianfar.c in     the Freescale Gianfar Ethernet driver allows attackers     to cause a system crash because a negative fragment     size is calculated in situations involving an rx queue     overrun when jumbo packets are used and NAPI is     enabled, aka CID-d8861bab48b6.(CVE-2021-29264)

  - An issue was discovered in the Linux kernel before     5.11.11. qrtr_recvmsg in net/qrtr/qrtr.c allows     attackers to obtain sensitive information from kernel     memory because of a partially uninitialized data     structure, aka CID-50535249f624.(CVE-2021-29647)

  - An issue was discovered in the FUSE filesystem     implementation in the Linux kernel before 5.10.6, aka     CID-5d069dbe8aaf. fuse_do_getattr() calls     make_bad_inode() in inappropriate situations, causing a     system crash. NOTE: the original fix for this     vulnerability was incomplete, and its incompleteness is     tracked as CVE-2021-28950.(CVE-2020-36322)

  - An issue was discovered in the Linux kernel through     5.11.3. Certain iSCSI data structures do not have     appropriate length constraints or checks, and can     exceed the PAGE_SIZE value. An unprivileged user can     send a Netlink message that is associated with iSCSI,     and has a length up to the maximum length of a Netlink     message.(CVE-2021-27365)

  - A flaw was found in the Nosy driver in the Linux     kernel. This issue allows a device to be inserted twice     into a doubly-linked list, leading to a use-after-free     when one of these devices is removed. The highest     threat from this vulnerability is to confidentiality,     integrity, as well as system availability. Versions     before kernel 5.12-rc6 are affected(CVE-2021-3483)

  - An issue was discovered in the Linux kernel before     5.11.3 when a webcam device exists. video_usercopy in     drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak     for large arguments, aka     CID-fb18802a338b.(CVE-2021-30002)

  - The fix for XSA-365 includes initialization of pointers     such that subsequent cleanup code wouldn't use     uninitialized or stale values. This initialization went     too far and may under certain conditions also overwrite     pointers which are in need of cleaning up. The lack of     cleanup would result in leaking persistent grants. The     leak in turn would prevent fully cleaning up after a     respective guest has died, leaving around zombie     domains. All Linux versions having the fix for XSA-365     applied are vulnerable. XSA-365 was classified to     affect versions back to at least 3.11.(CVE-2021-28688)

  - A race condition in Linux kernel SCTP sockets     (net/sctp/socket.c) before 5.12-rc8 can lead to kernel     privilege escalation from the context of a network     service or an unprivileged process. If     sctp_destroy_sock is called without     sock_net(sk)->sctp.addr_wq_lock then an element is     removed from the auto_asconf_splist list without any     proper locking. This can be exploited by an attacker     with network service privileges to escalate to root or     from the context of an unprivileged user directly if a     BPF_CGROUP_INET_SOCK_CREATE is attached which denies     creation of some SCTP socket.(CVE-2021-23133)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1977-1 advisory.

  - An issue was discovered in the Linux kernel through 5.3.9. There is a use-after-free when aa_label_parse()     fails in aa_audit_rule_init() in security/apparmor/audit.c. (CVE-2019-18814)

  - In the Linux kernel 5.3.10, there is a use-after-free (read) in the perf_trace_lock_acquire function     (related to include/trace/events/lock.h). (CVE-2019-19769)

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a     network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP,     CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data.
    (CVE-2020-24586)

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary     can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP,     CCMP, or GCMP encryption key is periodically renewed. (CVE-2020-24587)

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated.
    Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an     adversary can abuse this to inject arbitrary network packets. (CVE-2020-24588)

  - A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free     which might lead to privilege escalations. (CVE-2020-25670)

  - A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-     free which might lead to privilege escalations. (CVE-2020-25671)

  - A memory leak vulnerability was found in Linux kernel in llcp_sock_connect (CVE-2020-25672)

  - A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak     and eventually hanging-up the system. (CVE-2020-25673)

  - An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other     clients even though the sender has not yet successfully authenticated to the AP. This might be abused in     projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier     to exploit other vulnerabilities in connected clients. (CVE-2020-26139)

  - An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The Wi-Fi implementation     does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames. An adversary can     abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-     confidentiality protocol. (CVE-2020-26141)

  - An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3     implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process     them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets     independent of the network configuration. (CVE-2020-26145)

  - An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble     fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject     packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP,     CCMP, or GCMP data-confidentiality protocol is used. (CVE-2020-26147)

  - An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-     of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects     pointer types that do not define a ptr_limit. (CVE-2020-27170)

  - An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error     (with a resultant integer underflow) affecting out-of-bounds speculation on pointer arithmetic, leading to     side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory,     aka CID-10d2bb2e6b1d. (CVE-2020-27171)

  - An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users     can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.
    (CVE-2020-27673)

  - A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the     ability to set extended attributes to panic the system, causing memory corruption or escalating     privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system     availability. (CVE-2020-27815)

  - An out-of-bounds (OOB) memory access flaw was found in x25_bind in net/x25/af_x25.c in the Linux kernel     version v5.12-rc5. A bounds check failure allows a local attacker with a user account on the system to     gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information.
    The highest threat from this vulnerability is to confidentiality, integrity, as well as system     availability. (CVE-2020-35519)

  - An issue was discovered in the Linux kernel before 5.8. arch/x86/kvm/svm/svm.c allows a     set_memory_region_test infinite loop for certain nested page faults, aka CID-e72436bc3a52.
    (CVE-2020-36310)

  - An issue was discovered in the Linux kernel before 5.9. arch/x86/kvm/svm/sev.c allows attackers to cause a     denial of service (soft lockup) by triggering destruction of a large SEV VM (which requires unregistering     many encrypted regions), aka CID-7be74942f184. (CVE-2020-36311)

  - An issue was discovered in the Linux kernel before 5.8.10. virt/kvm/kvm_main.c has a     kvm_io_bus_unregister_dev memory leak upon a kmalloc failure, aka CID-f65886606c2d. (CVE-2020-36312)

  - An issue was discovered in the FUSE filesystem implementation in the Linux kernel before 5.10.6, aka     CID-5d069dbe8aaf. fuse_do_getattr() calls make_bad_inode() in inappropriate situations, causing a system     crash. NOTE: the original fix for this vulnerability was incomplete, and its incompleteness is tracked as     CVE-2021-28950. (CVE-2020-36322)

  - An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in     the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local     user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability     is to confidentiality, integrity, as well as system availability. (CVE-2021-20268)

  - Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to     elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local     user with the CAP_NET_RAW capability. (CVE-2021-23134)

  - An issue was discovered in the Linux kernel through 5.11.3. A kernel pointer leak can be used to determine     the address of the iscsi_transport structure. When an iSCSI transport is registered with the iSCSI     subsystem, the transport's handle is available to unprivileged users via the sysfs file system, at     /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When read, the show_transport_handle function (in     drivers/scsi/scsi_transport_iscsi.c) is called, which leaks the handle. This handle is actually the     pointer to an iscsi_transport struct in the kernel module's global variables. (CVE-2021-27363)

  - An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is     adversely affected by the ability of an unprivileged user to craft Netlink messages. (CVE-2021-27364)

  - An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have     appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can     send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a     Netlink message. (CVE-2021-27365)

  - An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the     netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of     changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior     of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.
    (CVE-2021-28038)

  - An issue was discovered in the Linux kernel through 5.11.6. fastrpc_internal_invoke in     drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka     CID-20c40794eb85. This is a related issue to CVE-2019-2308. (CVE-2021-28375)

  - rtw_wx_set_scan in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c in the Linux kernel through 5.11.6     allows writing beyond the end of the ->ssid[] array. NOTE: from the perspective of kernel.org releases,     CVE IDs are not normally used for drivers/staging/* (unfinished work); however, system integrators may     have situations in which a drivers/staging issue is relevant to their own customer base. (CVE-2021-28660)

  - The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use     uninitialized or stale values. This initialization went too far and may under certain conditions also     overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking     persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died,     leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable.
    XSA-365 was classified to affect versions back to at least 3.11. (CVE-2021-28688)

  - An issue was discovered in fs/fuse/fuse_i.h in the Linux kernel before 5.11.8. A stall on CPU can occur     because a retry loop continually finds the same bad inode, aka CID-775c5033a0d1. (CVE-2021-28950)

  - An issue was discovered in the Linux kernel through 5.11.8. The sound/soc/qcom/sdm845.c soundwire device     driver has a buffer overflow when an unexpected port ID number is encountered, aka CID-1c668e1c0a0f. (This     has been fixed in 5.12-rc4.) (CVE-2021-28952)

  - A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It     allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer     before a cloning operation, aka CID-dbcc7d57bffc. (CVE-2021-28964)

  - In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some     Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS     status in a PEBS record is mishandled, aka CID-d88d05a9e0b6. (CVE-2021-28971)

  - In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has     a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing     userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and     remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8. (CVE-2021-28972)

  - BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements,     allowing them to execute arbitrary code within the kernel context. This affects     arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c. (CVE-2021-29154)

  - An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable     out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer     arithmetic operations, the pointer modification performed by the first operation is not correctly     accounted for when restricting subsequent operations. (CVE-2021-29155)

  - An issue was discovered in the Linux kernel through 5.11.10. drivers/net/ethernet/freescale/gianfar.c in     the Freescale Gianfar Ethernet driver allows attackers to cause a system crash because a negative fragment     size is calculated in situations involving an rx queue overrun when jumbo packets are used and NAPI is     enabled, aka CID-d8861bab48b6. (CVE-2021-29264)

  - An issue was discovered in the Linux kernel before 5.11.7. usbip_sockfd_store in     drivers/usb/usbip/stub_dev.c allows attackers to cause a denial of service (GPF) because the stub-up     sequence has race conditions during an update of the local and shared status, aka CID-9380afd6df70.
    (CVE-2021-29265)

  - An issue was discovered in the Linux kernel before 5.11.11. qrtr_recvmsg in net/qrtr/qrtr.c allows     attackers to obtain sensitive information from kernel memory because of a partially uninitialized data     structure, aka CID-50535249f624. (CVE-2021-29647)

  - An issue was discovered in the Linux kernel before 5.11.11. The netfilter subsystem allows attackers to     cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h     lack a full memory barrier upon the assignment of a new table value, aka CID-175e476b8cdf.
    (CVE-2021-29650)

  - An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in     drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak for large arguments, aka CID-fb18802a338b.
    (CVE-2021-30002)

  - net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI     controller. (CVE-2021-32399)

  - In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an     hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value. (CVE-2021-33034)

  - kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic     operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel     memory, leading to local privilege escalation to root. In particular, there is a corner case where the off     reg causes a masking direction change, which then results in an incorrect final aux->alu_limit.
    (CVE-2021-33200)

  - The bpf verifier in the Linux kernel did not properly handle mod32 destination register truncation when     the source register was known to be 0. A local attacker with the ability to load bpf programs could use     this gain out-of-bounds reads in kernel memory leading to information disclosure (kernel memory), and     possibly out-of-bounds writes that could potentially lead to code execution. This issue was addressed in     the upstream kernel in commit 9b00f1b78809 (bpf: Fix truncation handling for mod32 dst reg wrt zero) and     in Linux stable kernels 5.11.2, 5.10.19, and 5.4.101. (CVE-2021-3444)

  - A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice     into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest     threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions     before kernel 5.12-rc6 are affected (CVE-2021-3483)

  - The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size     was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel     and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee (bpf, ringbuf: Deny     reserve of buffers larger than ringbuf) (v5.13-rc4) and backported to the stable kernels in v5.12.4,     v5.11.21, and v5.10.37. It was introduced via 457f44363a88 (bpf: Implement BPF ring buffer and verifier     support for it) (v5.8-rc1). (CVE-2021-3489)

  - The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly     update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and     therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e (bpf: Fix alu32 const     subreg bound tracking on bitwise operations) (v5.13-rc4) and backported to the stable kernels in v5.12.4,     v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 (bpf: Verifier, do     explicit ALU32 bounds tracking) (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 (bpf:Fix a     verifier failure with xor) ( 5.10-rc1). (CVE-2021-3490)

  - The io_uring subsystem in the Linux kernel allowed the MAX_RW_COUNT limit to be bypassed in the     PROVIDE_BUFFERS operation, which led to negative values being usedin mem_rw when reading /proc//mem.
    This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was     addressed via commit d1f82808877b (io_uring: truncate lengths larger than MAX_RW_COUNT on provide     buffers) (v5.13-rc1) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was     introduced in ddf0322db79c (io_uring: add IORING_OP_PROVIDE_BUFFERS) (v5.7-rc1). (CVE-2021-3491)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2021-3444: Fixed an issue with the bpf verifier which did not properly handle mod32 destination register truncation when the source register was known to be 0 leading to out of bounds read (bsc#1184170).

CVE-2021-3428: Fixed an integer overflow in ext4_es_cache_extent (bsc#1173485).

CVE-2021-29647: Fixed an issue in qrtr_recvmsg which could have allowed attackers to obtain sensitive information from kernel memory because of a partially uninitialized data structure (bsc#1184192 ).

CVE-2021-29265: Fixed an issue in usbip_sockfd_store which could have allowed attackers to cause a denial of service due to race conditions during an update of the local and shared status (bsc#1184167).

CVE-2021-29264: Fixed an issue in the Freescale Gianfar Ethernet driver which could have allowed attackers to cause a system crash due to a calculation of negative fragment size (bsc#1184168).

CVE-2021-28972: Fixed a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly (bsc#1184198).

CVE-2021-28971: Fixed an issue in intel_pmu_drain_pebs_nhm which could have caused a system crash because the PEBS status in a PEBS record was mishandled (bsc#1184196 ).

CVE-2021-28964: Fixed a race condition in get_old_root which could have allowed attackers to cause a denial of service (bsc#1184193).

CVE-2021-28688: Fixed an issue introduced by XSA-365 (bsc#1183646).

CVE-2021-28660: Fixed an out of bounds write in rtw_wx_set_scan (bsc#1183593 ).

CVE-2021-28375: Fixed an issue in fastrpc_internal_invoke which did not prevent user applications from sending kernel RPC messages (bsc#1183596).

CVE-2021-28038: Fixed an issue with the netback driver which was lacking necessary treatment of errors such as failed memory allocations (bsc#1183022).

CVE-2021-27365: Fixed an issue where an unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message (bsc#1182715).

CVE-2021-27364: Fixed an issue where an attacker could craft Netlink messages (bsc#1182717).

CVE-2021-27363: Fixed a kernel pointer leak which could have been used to determine the address of the iscsi_transport structure (bsc#1182716).

CVE-2020-35519: Fixed an out-of-bounds memory access was found in x25_bind (bsc#1183696).

CVE-2020-27815: Fixed an issue in JFS filesystem where could have allowed an attacker to execute code (bsc#1179454).

CVE-2020-27171: Fixed an off-by-one error affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory (bsc#1183775).

CVE-2020-27170: Fixed potential side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory (bsc#1183686).

CVE-2019-19769: Fixed a use-after-free in the perf_trace_lock_acquire function (bsc#1159280 ).

CVE-2019-18814: Fixed a use-after-free when aa_label_parse() fails in aa_audit_rule_init() (bsc#1156256).

CVE-2021-3483: Fixed a use-after-free in nosy.c (bsc#1184393).

CVE-2021-30002: Fixed a memory leak for large arguments in video_usercopy (bsc#1184120).

CVE-2021-29154: Fixed incorrect computation of branch displacements, allowing arbitrary code execution (bsc#1184391).

CVE-2021-28950: Fixed an issue in fs/fuse/fuse_i.h due to a retry loop continually was finding the same bad inode (bsc#1184194).

CVE-2020-36312: Fixed a memory leak upon a kmalloc failure (bsc#1184509 ).

CVE-2020-36311: Fixed a denial of service (soft lockup) by triggering destruction of a large SEV VM (bsc#1184511).

CVE-2020-36310: Fixed infinite loop for certain nested page faults (bsc#1184512).

CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2020-25673: Fixed multiple bugs in NFC subsytem (bsc#1178181).

CVE-2020-36322: Fixed an issue was discovered in FUSE filesystem implementation which could have caused a system crash (bsc#1184211).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The kernel package contains the Linux kernel (vmlinuz),     the core of any Linux operating system. The kernel     handles the basic functions of the operating system:
    memory allocation, process allocation, device input and     output, etc.Security Fix(es):kernel/bpf/verifier.c in     the Linux kernel through 5.12.7 enforces incorrect     limits for pointer arithmetic operations, aka     CID-bb01a1bba579. This can be abused to perform     out-of-bounds reads and writes in kernel memory,     leading to local privilege escalation to root. In     particular, there is a corner case where the off reg     causes a masking direction change, which then results     in an incorrect final aux->alu_limit.(CVE-2021-33200)A     vulnerability was found in Linux Kernel where refcount     leak in llcp_sock_bind() causing use-after-free which     might lead to privilege escalations.(CVE-2020-25670)A     vulnerability was found in Linux Kernel, where a     refcount leak in llcp_sock_connect() causing     use-after-free which might lead to privilege     escalations.(CVE-2020-25671)A memory leak vulnerability     was found in Linux kernel in     llcp_sock_connect(CVE-2020-25672)An out-of-bounds (OOB)     memory access flaw was found in fs/f2fs/ Node.c in the     f2fs module in the Linux kernel in versions before     5.12.0-rc4. A bounds check failure allows a local     attacker to gain access to out-of-bounds memory leading     to a system crash or a leak of internal kernel     information. The highest threat from this vulnerability     is to system availability.(CVE-2021-3506)The Linux     kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194,     and 4.19.x before 4.19.140 has a use-after-free because     skcd->no_refcnt was not considered during a backport of     a CVE-2020-14356 patch. This is related to the cgroups     feature.(CVE-2020-25220)The Linux kernel before 5.11.14     has a use-after-free in cipso_v4_genopt in     net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO     refcounting for the DOI definitions is mishandled, aka     CID-ad5d07f4a9cd. This leads to writing an arbitrary     value.(CVE-2021-33033)kernel/bpf/verifier.c in the     Linux kernel through 5.12.1 performs undesirable     speculative loads, leading to disclosure of stack     content via side-channel attacks, aka CID-801c6058d14a.
    The specific concern is not protecting the BPF stack     area against speculative loads. Also, the BPF stack can     contain uninitialized data that might represent     sensitive information previously operated on by the     kernel.(CVE-2021-31829)An issue was discovered in     fs/fuse/fuse_i.h in the Linux kernel before 5.11.8.
    A(CVE-2021-28950)net/bluetooth/hci_request.c in the     Linux kernel through 5.12.2 has a race condition for     removal of the HCI controller.(CVE-2021-32399)In the     Linux kernel before 5.12.4, net/bluetooth/hci_event.c     has a use-after-free when destroying an hci_chan, aka     CID-5c4c8c954409. This leads to writing an arbitrary     value.(CVE-2021-33034)An out-of-bounds (OOB) memory     write flaw was found in list_devices in     drivers/md/dm-ioctl.c in the Multi-device driver module     in the Linux kernel before 5.12. A bound check failure     allows an attacker with special user (CAP_SYS_ADMIN)     privilege to gain access to out-of-bounds memory     leading to a system crash or a leak of internal kernel     information. The highest threat from this vulnerability     is to system availability.(CVE-2021-31916)Use After     Free vulnerability in nfc sockets in the Linux Kernel     before 5.12.4 allows local attackers to elevate their     privileges. In typical configurations, the issue can     only be triggered by a privileged local user with the     CAP_NET_RAW capability.(CVE-2021-23134)An issue was     discovered in the Linux kernel before 5.9.
    arch/x86/kvm/svm/sev.c allows attackers to cause a     denial of service (soft lockup) by triggering     destruction of a large SEV VM (which requires     unregistering many encrypted regions), aka     CID-7be74942f184.(CVE-2020-36311)An issue was     discovered in the Linux kernel before 5.8.10.
    virt/kvm/kvm_main.c has a kvm_io_bus_unregister_dev     memory leak upon a kmalloc failure, aka     CID-f65886606c2d.(CVE-2020-36312)The bpf verifier in     the Linux kernel did not properly handle mod32     destination register truncation when the source     register was known to be 0. A local attacker with the     ability to load bpf programs could use this gain     out-of-bounds reads in kernel memory leading to     information disclosure (kernel memory), and possibly     out-of-bounds writes that could potentially lead to     code execution. This issue was addressed in the     upstream kernel in commit 9b00f1b78809 ('bpf: Fix     truncation handling for mod32 dst reg wrt zero') and in     Linux stable kernels 5.11.2, 5.10.19, and     5.4.101.(CVE-2021-3444)An issue was discovered in the     Linux kernel through 5.11.x. kernel/bpf/verifier.c     performs undesirable out-of-bounds speculation on     pointer arithmetic, leading to side-channel attacks     that defeat Spectre mitigations and obtain sensitive     information from kernel memory. Specifically, for     sequences of pointer arithmetic operations, the pointer     modification performed by the first operation is not     correctly accounted for when restricting subsequent     operations.(CVE-2021-29155)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:4356 advisory.

  - kernel: Intel graphics card information leak. (CVE-2019-14615)

  - kernel: out-of-bounds reads in pinctrl subsystem. (CVE-2020-0427)

  - kernel: Improper input validation in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24502)

  - kernel: Insufficient access control in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24503)

  - kernel: Uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24504)

  - kernel: Fragmentation cache not cleared on reconnection (CVE-2020-24586)

  - kernel: Reassembling fragments encrypted under different keys (CVE-2020-24587)

  - kernel: wifi frame payload being parsed incorrectly as an L2 frame (CVE-2020-24588)

  - kernel: Forwarding EAPOL from unauthenticated wifi client (CVE-2020-26139)

  - kernel: accepting plaintext data frames in protected networks (CVE-2020-26140)

  - kernel: not verifying TKIP MIC of fragmented frames (CVE-2020-26141)

  - kernel: accepting fragmented plaintext frames in protected networks (CVE-2020-26143)

  - kernel: accepting unencrypted A-MSDU frames that start with RFC1042 header (CVE-2020-26144)

  - kernel: accepting plaintext broadcast fragments as full frames (CVE-2020-26145)

  - kernel: reassembling encrypted fragments with non-consecutive packet numbers (CVE-2020-26146)

  - kernel: reassembling mixed encrypted/plaintext fragments (CVE-2020-26147)

  - kernel: powerpc: RTAS calls can be used to compromise kernel integrity (CVE-2020-27777)

  - kernel: the copy-on-write implementation can grant unintended write access because of a race condition in     a THP mapcount check (CVE-2020-29368)

  - kernel: locking inconsistency in drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c can lead to a read-     after-free (CVE-2020-29660)

  - kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start function in     drivers/net/wireless/marvell/mwifiex/join.c via a long SSID value (CVE-2020-36158)

  - kernel: memory leak upon a kmalloc failure in kvm_io_bus_unregister_dev function in virt/kvm/kvm_main.c     (CVE-2020-36312)

  - kernel: slab out-of-bounds read in hci_extended_inquiry_result_evt() in net/bluetooth/hci_event.c     (CVE-2020-36386)

  - kernel: Improper access control in BlueZ may allow information disclosure vulnerability. (CVE-2021-0129)

  - kernel: heap overflow in __cgroup_bpf_run_filter_getsockopt() (CVE-2021-20194)

  - kernel: setsockopt System Call Untrusted Pointer Dereference Information Disclosure (CVE-2021-20239)

  - kernel: Race condition in sctp_destroy_sock list_del (CVE-2021-23133)

  - kernel: fuse: stall on CPU can occur because a retry loop continually finds the same bad inode     (CVE-2021-28950)

  - kernel: System crash in intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c (CVE-2021-28971)

  - kernel: protection for sequences of pointer arithmetic operations against speculatively out-of-bounds     loads can be bypassed to leak content of kernel memory (CVE-2021-29155)

  - kernel: improper input validation in tipc_nl_retrieve_key function in net/tipc/node.c (CVE-2021-29646)

  - kernel: lack a full memory barrier upon the assignment of a new table value in net/netfilter/x_tables.c     and include/linux/netfilter/x_tables.h may lead to DoS (CVE-2021-29650)

  - kernel: local escalation of privileges in handling of eBPF programs (CVE-2021-31440)

  - kernel: protection of stack pointer against speculative pointer arithmetic can be bypassed to leak content     of kernel memory (CVE-2021-31829)

  - kernel: out of bounds array access in drivers/md/dm-ioctl.c (CVE-2021-31916)

  - kernel: use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c (CVE-2021-33033)

  - kernel: out-of-bounds reads and writes due to enforcing incorrect limits for pointer arithmetic operations     by BPF verifier (CVE-2021-33200)

  - kernel: Use-after-free in ndb_queue_rq() in drivers/block/nbd.c (CVE-2021-3348)

  - kernel: Linux kernel eBPF RINGBUF map oversized allocation (CVE-2021-3489)

  - kernel: double free in bluetooth subsystem when the HCI device initialization fails (CVE-2021-3564)

  - kernel: use-after-free in function hci_sock_bound_ioctl() (CVE-2021-3573)

  - kernel: eBPF 32-bit source register truncation on div/mod (CVE-2021-3600)

  - kernel: flowtable list del corruption with kernel BUG at lib/list_debug.c:50 (CVE-2021-3635)

  - kernel: NULL pointer dereference in llsec_key_alloc() in net/mac802154/llsec.c (CVE-2021-3659)

  - kernel: DoS in rb_per_cpu_empty() (CVE-2021-3679)

  - kernel: overlayfs: Mounting overlayfs inside an unprivileged user namespace can reveal files     (CVE-2021-3732)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4140 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):
    * kernel: out-of-bounds reads in pinctrl subsystem. (CVE-2020-0427)
    * kernel: Improper input validation in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24502)
    * kernel: Insufficient access control in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24503)
    * kernel: Uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter drivers     (CVE-2020-24504)
    * kernel: Fragmentation cache not cleared on reconnection (CVE-2020-24586)
    * kernel: Reassembling fragments encrypted under different keys (CVE-2020-24587)
    * kernel: wifi frame payload being parsed incorrectly as an L2 frame (CVE-2020-24588)
    * kernel: Forwarding EAPOL from unauthenticated wifi client (CVE-2020-26139)
    * kernel: accepting plaintext data frames in protected networks (CVE-2020-26140)
    * kernel: not verifying TKIP MIC of fragmented frames (CVE-2020-26141)
    * kernel: accepting fragmented plaintext frames in protected networks (CVE-2020-26143)
    * kernel: accepting unencrypted A-MSDU frames that start with RFC1042 header (CVE-2020-26144)
    * kernel: accepting plaintext broadcast fragments as full frames (CVE-2020-26145)
    * kernel: locking inconsistency in tty_io.c and tty_jobctrl.c can lead to a read-after-free     (CVE-2020-29660)
    * kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start function via a long SSID value     (CVE-2020-36158)
    * kernel: slab out-of-bounds read in hci_extended_inquiry_result_evt() (CVE-2020-36386)
    * kernel: Improper access control in BlueZ may allow information disclosure vulnerability. (CVE-2021-0129)
    * kernel: Use-after-free in ndb_queue_rq() (CVE-2021-3348)
    * kernel: Linux kernel eBPF RINGBUF map oversized allocation (CVE-2021-3489)
    * kernel: double free in bluetooth subsystem when the HCI device initialization fails (CVE-2021-3564)
    * kernel: use-after-free in function hci_sock_bound_ioctl() (CVE-2021-3573)
    * kernel: eBPF 32-bit source register truncation on div/mod (CVE-2021-3600)
    * kernel: DoS in rb_per_cpu_empty() (CVE-2021-3679)
    * kernel: overlayfs: Mounting overlayfs inside an unprivileged user namespace can reveal files     (CVE-2021-3732)
    * kernel: heap overflow in __cgroup_bpf_run_filter_getsockopt() (CVE-2021-20194)
    * kernel: Race condition in sctp_destroy_sock list_del (CVE-2021-23133)
    * kernel: fuse: stall on CPU can occur because a retry loop continually finds the same bad inode     (CVE-2021-28950)
    * kernel: System crash in intel_pmu_drain_pebs_nhm (CVE-2021-28971)
    * kernel: protection for sequences of pointer arithmetic operations against speculatively out-of-bounds     loads can be bypassed to leak content of kernel memory (CVE-2021-29155)
    * kernel: improper input validation in tipc_nl_retrieve_key function (CVE-2021-29646)
    * kernel: lack a full memory barrier upon the assignment of a new table value in x_tables.h may lead to     DoS (CVE-2021-29650)
    * kernel: local escalation of privileges in handling of eBPF programs (CVE-2021-31440)
    * kernel: protection of stack pointer against speculative pointer arithmetic can be bypassed to leak     content of kernel memory (CVE-2021-31829)
    * kernel: out-of-bounds reads and writes due to enforcing incorrect limits for pointer arithmetic     operations by BPF verifier (CVE-2021-33200)
    * kernel: reassembling encrypted fragments with non-consecutive packet numbers (CVE-2020-26146)
    * kernel: reassembling mixed encrypted/plaintext fragments (CVE-2020-26147)
    * kernel: the copy-on-write implementation can grant unintended write access because of a race condition     in a THP mapcount check (CVE-2020-29368)
    * kernel: flowtable list del corruption with kernel BUG (CVE-2021-3635)
    * kernel: NULL pointer dereference in llsec_key_alloc()  (CVE-2021-3659)
    * kernel: setsockopt System Call Untrusted Pointer Dereference Information Disclosure (CVE-2021-20239)
    * kernel: out of bounds array access in drivers/md/dm-ioctl.c (CVE-2021-31916)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:4140 advisory.

  - kernel: Intel graphics card information leak. (CVE-2019-14615)

  - kernel: out-of-bounds reads in pinctrl subsystem. (CVE-2020-0427)

  - kernel: Improper input validation in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24502)

  - kernel: Insufficient access control in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24503)

  - kernel: Uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24504)

  - kernel: Fragmentation cache not cleared on reconnection (CVE-2020-24586)

  - kernel: Reassembling fragments encrypted under different keys (CVE-2020-24587)

  - kernel: wifi frame payload being parsed incorrectly as an L2 frame (CVE-2020-24588)

  - kernel: Forwarding EAPOL from unauthenticated wifi client (CVE-2020-26139)

  - kernel: accepting plaintext data frames in protected networks (CVE-2020-26140)

  - kernel: not verifying TKIP MIC of fragmented frames (CVE-2020-26141)

  - kernel: accepting fragmented plaintext frames in protected networks (CVE-2020-26143)

  - kernel: accepting unencrypted A-MSDU frames that start with RFC1042 header (CVE-2020-26144)

  - kernel: accepting plaintext broadcast fragments as full frames (CVE-2020-26145)

  - kernel: reassembling encrypted fragments with non-consecutive packet numbers (CVE-2020-26146)

  - kernel: reassembling mixed encrypted/plaintext fragments (CVE-2020-26147)

  - kernel: the copy-on-write implementation can grant unintended write access because of a race condition in     a THP mapcount check (CVE-2020-29368)

  - kernel: locking inconsistency in drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c can lead to a read-     after-free (CVE-2020-29660)

  - kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start function in     drivers/net/wireless/marvell/mwifiex/join.c via a long SSID value (CVE-2020-36158)

  - kernel: memory leak upon a kmalloc failure in kvm_io_bus_unregister_dev function in virt/kvm/kvm_main.c     (CVE-2020-36312)

  - kernel: slab out-of-bounds read in hci_extended_inquiry_result_evt() in net/bluetooth/hci_event.c     (CVE-2020-36386)

  - kernel: Improper access control in BlueZ may allow information disclosure vulnerability. (CVE-2021-0129)

  - kernel: heap overflow in __cgroup_bpf_run_filter_getsockopt() (CVE-2021-20194)

  - kernel: setsockopt System Call Untrusted Pointer Dereference Information Disclosure (CVE-2021-20239)

  - kernel: Race condition in sctp_destroy_sock list_del (CVE-2021-23133)

  - kernel: fuse: stall on CPU can occur because a retry loop continually finds the same bad inode     (CVE-2021-28950)

  - kernel: System crash in intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c (CVE-2021-28971)

  - kernel: protection for sequences of pointer arithmetic operations against speculatively out-of-bounds     loads can be bypassed to leak content of kernel memory (CVE-2021-29155)

  - kernel: improper input validation in tipc_nl_retrieve_key function in net/tipc/node.c (CVE-2021-29646)

  - kernel: lack a full memory barrier upon the assignment of a new table value in net/netfilter/x_tables.c     and include/linux/netfilter/x_tables.h may lead to DoS (CVE-2021-29650)

  - kernel: local escalation of privileges in handling of eBPF programs (CVE-2021-31440)

  - kernel: protection of stack pointer against speculative pointer arithmetic can be bypassed to leak content     of kernel memory (CVE-2021-31829)

  - kernel: out of bounds array access in drivers/md/dm-ioctl.c (CVE-2021-31916)

  - kernel: use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c (CVE-2021-33033)

  - kernel: out-of-bounds reads and writes due to enforcing incorrect limits for pointer arithmetic operations     by BPF verifier (CVE-2021-33200)

  - kernel: Use-after-free in ndb_queue_rq() in drivers/block/nbd.c (CVE-2021-3348)

  - kernel: Linux kernel eBPF RINGBUF map oversized allocation (CVE-2021-3489)

  - kernel: double free in bluetooth subsystem when the HCI device initialization fails (CVE-2021-3564)

  - kernel: use-after-free in function hci_sock_bound_ioctl() (CVE-2021-3573)

  - kernel: eBPF 32-bit source register truncation on div/mod (CVE-2021-3600)

  - kernel: flowtable list del corruption with kernel BUG at lib/list_debug.c:50 (CVE-2021-3635)

  - kernel: NULL pointer dereference in llsec_key_alloc() in net/mac802154/llsec.c (CVE-2021-3659)

  - kernel: DoS in rb_per_cpu_empty() (CVE-2021-3679)

  - kernel: overlayfs: Mounting overlayfs inside an unprivileged user namespace can reveal files     (CVE-2021-3732)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An issue was discovered in the Linux kernel before 5.8.10. virt/kvm/kvm_main.c has a     kvm_io_bus_unregister_dev memory leak upon a kmalloc failure, aka CID-f65886606c2d. (CVE-2020-36312)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote SUSE Linux SLED12 / SLED_SAP12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1870-1 advisory.

    The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2019-25160: Fixed out-of-bounds memory accesses in netlabel (bsc#1220394).
    - CVE-2020-36312: Fixed an issue in virt/kvm/kvm_main.c that had a kvm_io_bus_unregister_dev memory leak     upon a kmalloc failure (bsc#1184509).
    - CVE-2021-23134: Fixed a use-after-free issue in nfc sockets (bsc#1186060).
    - CVE-2021-46904: Fixed NULL pointer dereference during tty device unregistration (bsc#1220416).
    - CVE-2021-46905: Fixed NULL pointer dereference on disconnect regression (bsc#1220418).
    - CVE-2021-46909: Fixed PCI interrupt mapping in ARM footbridge (bsc#1220442).
    - CVE-2021-46938: Fixed double free of blk_mq_tag_set in dev remove after table load fails (bsc#1220554).
    - CVE-2021-46939: Fixed possible hung in trace_clock_global() (bsc#1220580).
    - CVE-2021-46941: Fixed core softreset when switch mode in usb dwc3 (bsc#1220628).
    - CVE-2021-46950: Fixed possible data corruption in md/raid1 when ending a failed write request     (bsc#1220662).
    - CVE-2021-46958: Fixed race between transaction aborts and fsyncs that could lead to use-after-free in     btrfs (bsc#1220521).
    - CVE-2021-46960: Fixed wrong error code from smb2_get_enc_key() (bsc#1220528).
    - CVE-2021-46963: Fixed crash in qla2xxx_mqueuecommand()  (bsc#1220536).
    - CVE-2021-46964: Fixed unreserved extra IRQ vectors in qla2xxx (bsc#1220538).
    - CVE-2021-46966: Fixed potential use-after-free issue in cm_write() (bsc#1220572).
    - CVE-2021-46981: Fixed NULL pointer in flush_workqueue (bsc#1220611).
    - CVE-2021-46988: Fixed possible crash in userfaultfd due to unreleased page (bsc#1220706).
    - CVE-2021-46990: Fixed crashes when toggling entry flush barrier in powerpc/64s (bsc#1220743).
    - CVE-2021-46998: Fixed a use after free bug in enic_hard_start_xmit() (bsc#1220625).
    - CVE-2021-47006: Fixed wrong check in overflow_handler hook in ARM 9064/1 hw_breakpoint (bsc#1220751).
    - CVE-2021-47015: Fixed RX consumer index logic in the error path in bnxt_en (bsc#1220794).
    - CVE-2021-47024: Fixed possible memory leak in vsock/virtio when closing socket (bsc#1220637).
    - CVE-2021-47034: Fixed resolved pte update for kernel memory on radix in powerpc/64s (bsc#1220687).
    - CVE-2021-47045: Fixed null pointer dereference in lpfc_prep_els_iocb() (bsc#1220640).
    - CVE-2021-47049: Fixed Use after free in __vmbus_open() (bsc#1220692).
    - CVE-2021-47055: Fixed missing permissions for locking and badblock ioctls in mtd (bsc#1220768).
    - CVE-2021-47056: Fixed uninitialized lock in adf_vf2pf_shutdown() (bsc#1220769).
    - CVE-2021-47060: Fixed a bug in KVM by stop looking for coalesced MMIO zones if the bus is destroyed     (bsc#1220742).
    - CVE-2021-47061: Fixed a bug in KVM by destroy I/O bus devices on unregister failure _after_  sync'ing     SRCU (bsc#1220745).
    - CVE-2021-47063: Fixed possible use-after-free in panel_bridge_detach() (bsc#1220777).
    - CVE-2021-47068: Fixed a use-after-free issue in llcp_sock_bind/connect (bsc#1220739).
    - CVE-2021-47070: Fixed memory leak in error handling paths in uio_hv_generic (bsc#1220829).
    - CVE-2021-47071: Fixed memory leak in error handling paths in uio_hv_generic (bsc#1220846).
    - CVE-2021-47073: Fixed oops on rmmod dell_smbios init_dell_smbios_wmi() (bsc#1220850).
    - CVE-2021-47100: Fixed UAF when uninstall in ipmi (bsc#1220985).
    - CVE-2021-47101: Fixed uninit-value in asix_mdio_read() (bsc#1220987).
    - CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960).
    - CVE-2021-47110: Fixed possible memory corruption when restoring from hibernation in x86/kvm     (bsc#1221532).
    - CVE-2021-47112: Fixed possible memory corruption when restoring from hibernation in x86/kvm     (bsc#1221541).
    - CVE-2021-47114: Fixed data corruption by fallocate in ocfs2 (bsc#1221548).
    - CVE-2021-47117: Fixed bug on in ext4_es_cache_extent() as ext4_split_extent_at() failed (bsc#1221575).
    - CVE-2021-47118: Fixed possible use-after-free when initializing `cad_pid` (bsc#1221605).
    - CVE-2021-47119: Fixed memory leak in ext4_fill_super() (bsc#1221608).
    - CVE-2021-47138: Fixed possible out-of-bound memory access in cxgb4 when clearing filters (bsc#1221934).
    - CVE-2021-47141: Fixed possible NULL pointer dereference when freeing irqs (bsc#1221949).
    - CVE-2021-47142: Fixed a use-after-free in drm/amdgpu (bsc#1221952).
    - CVE-2021-47143: Fixed possible corruption in net/smc after failed device_add() (bsc#1221988).
    - CVE-2021-47150: Fixed the potential memory leak in fec_enet_init() (bsc#1221973).
    - CVE-2021-47153: Fixed wrongly generated interrupt on bus reset in i2c/i801 (bsc#1221969).
    - CVE-2021-47165: Fixed shutdown crash when component not probed in drm/meson (bsc#1221965).
    - CVE-2021-47166: Fixed possible corruptionb in nfs_do_recoalesce() (bsc#1221998).
    - CVE-2021-47167: Fixed an Oopsable condition in __nfs_pageio_add_request() (bsc#1221991).
    - CVE-2021-47168: Fixed an incorrect limit in filelayout_decode_layout() (bsc#1222002).
    - CVE-2021-47169: Fixed possible NULL pointer dereference in serial/rp2 (bsc#1222000).
    - CVE-2021-47171: Fixed memory leak in smsc75xx_bind() (bsc#1221994).
    - CVE-2021-47173: Fixed memory leak in uss720_probe() (bsc#1221993).
    - CVE-2021-47177: Fixed sysfs leak in alloc_iommu() (bsc#1221997).
    - CVE-2021-47179: Fixed a NULL pointer dereference in pnfs_mark_matching_lsegs_return() (bsc#1222001).
    - CVE-2021-47180: Fixed memory leak in nci_allocate_device() (bsc#1221999).
    - CVE-2021-47181: Fixed a null pointer dereference caused by calling platform_get_resource()     (bsc#1222660).
    - CVE-2021-47183: Fixed a null pointer dereference during link down processing in scsi lpfc (bsc#1192145,     bsc#1222664).
    - CVE-2021-47185: Fixed a softlockup issue in flush_to_ldisc in tty tty_buffer (bsc#1222669).
    - CVE-2021-47189: Fixed denial of service due to memory ordering issues between normal and ordered work     functions in btrfs (bsc#1222706).
    - CVE-2021-47202: Fixed NULL pointer dereferences in of_thermal_ functions (bsc#1222878)
    - CVE-2022-0487: A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove() in     drivers/memstick/host/rtsx_usb_ms.c (bsc#1194516).
    - CVE-2022-48619: Fixed a denial-of-service issue in drivers/input/input.c (bsc#1218220).
    - CVE-2022-48626: Fixed a potential use-after-free on remove path moxart (bsc#1220366).
    - CVE-2023-0160: Fixed deadlock flaw in BPF that could allow a local user to potentially crash the system     (bsc#1209657).
    - CVE-2023-28746: Fixed Register File Data Sampling (bsc#1213456).
    - CVE-2023-35827: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1212514).
    - CVE-2023-52454: Fixed a kernel panic when host sends an invalid H2C PDU length (bsc#1220320).
    - CVE-2023-52469: Fixed use-after-free in kv_parse_power_table() (bsc#1220411).
    - CVE-2023-52470: Fixed null-ptr-deref in radeon_crtc_init() (bsc#122041).
    - CVE-2023-52474: Fixed bugs with non-PAGE_SIZE-end multi-iovec user SDMA requests in hfi1 (bsc#1220445).
    - CVE-2023-52476: Fixed possible unhandled page fault via perf sampling NMI during vsyscall (bsc#1220703).
    - CVE-2023-52477: Fixed USB Hub accesses to uninitialized BOS descriptors (bsc#1220790).
    - CVE-2023-52486: Fixed possible use-after-free in drm (bsc#1221277).
    - CVE-2023-52509: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1220836).
    - CVE-2023-52515: Fixed possible use-after-free in RDMA/srp (bsc#1221048).
    - CVE-2023-52524: Fixed possible corruption in nfc/llcp (bsc#1220927).
    - CVE-2023-52528: Fixed uninit-value access in __smsc75xx_read_reg() (bsc#1220843).
    - CVE-2023-52575: Fixed SBPB enablement for spec_rstack_overflow=off (bsc#1220871).
    - CVE-2023-52583: Fixed deadlock or deadcode of misusing dget() inside ceph (bsc#1221058).
    - CVE-2023-52587: Fixed mcast list locking in IB/ipoib (bsc#1221082).
    - CVE-2023-52590: Fixed a possible ocfs2 filesystem corruption via directory renaming (bsc#1221088).
    - CVE-2023-52591: Fixed a possible reiserfs filesystem corruption via directory renaming (bsc#1221044).
    - CVE-2023-52598: Fixed wrong setting of fpc register in s390/ptrace (bsc#1221060).
    - CVE-2023-52607: Fixed NULL pointer dereference in pgtable_cache_add kasprintf() (bsc#1221061).
    - CVE-2023-52628: Fixed 4-byte stack OOB write in nftables (bsc#1222117).
    - CVE-2023-52639: Fixed race during shadow creation in KVM/s390/vsie (bsc#1222300).
    - CVE-2023-6270: Fixed a use-after-free issue in aoecmd_cfg_pkts (bsc#1218562).
    - CVE-2023-6356: Fixed a NULL pointer dereference in nvmet_tcp_build_pdu_iovec (bsc#1217987).
    - CVE-2023-6535: Fixed a NULL pointer dereference in nvmet_tcp_execute_request (bsc#1217988).
    - CVE-2023-6536: Fixed a NULL pointer dereference in __nvmet_req_complete (bsc#1217989).
    - CVE-2023-7042: Fixed a NULL pointer dereference vulnerability in     ath10k_wmi_tlv_op_pull_mgmt_tx_compl_ev() (bsc#1218336).
    - CVE-2023-7192: Fixed a memory leak problem in ctnetlink_create_conntrack in     net/netfilter/nf_conntrack_netlink.c (bsc#1218479).
    - CVE-2024-2201: Fixed information leak in x86/BHI (bsc#1217339).
    - CVE-2024-22099: Fixed NULL Pointer Dereference vulnerability in /net/bluetooth/rfcomm/core.c     (bsc#1219170).
    - CVE-2024-23307: Fixed Integer Overflow or Wraparound vulnerability in x86 and ARM md, raid, raid5     modules (bsc#1219169).
    - CVE-2024-24855: Fixed a null pointer dereference due to race condition in scsi device driver in     lpfc_unregister_fcf_rescan() function (bsc#1219618).
    - CVE-2024-24861: Fixed an overflow due to race condition in media/xc4000 device driver in xc4000     xc4000_get_frequency() function (bsc#1219623).
    - CVE-2024-26614: Fixed the initialization of accept_queue's spinlocks (bsc#1221293).
    - CVE-2024-26642: Fixed the set of anonymous timeout flag in netfilter nf_tables (bsc#1221830).
    - CVE-2024-26704: Fixed a double-free of blocks due to wrong extents moved_len in ext4 (bsc#1222422).
    - CVE-2024-26733: Fixed an overflow in arp_req_get() in arp (bsc#1222585).
    - CVE-2024-26743: Fixed memory leak in qedr_create_user_qp error flow in rdma/qedr (bsc#1222677)
    - CVE-2024-26744: Fixed null pointer dereference in srpt_service_guid parameter in rdma/srpt (bsc#1222449)
    - CVE-2024-26754: Fixed an use-after-free and null-ptr-deref in gtp_genl_dump_pdp() in gtp  (bsc#1222632).
    - CVE-2024-26763: Fixed user corruption via by writing data with O_DIRECT on device in dm-crypt     (bsc#1222720).
    - CVE-2024-26771: Fixed a null pointer dereference on edma_probe in dmaengine ti edma  (bsc#1222610)
    - CVE-2024-26793: Fixed an use-after-free and null-ptr-deref in gtp_newlink() in gtp  (bsc#1222428).
    - CVE-2024-26805: Fixed a kernel-infoleak-after-free in __skb_datagram_iter in netlink  (bsc#1222630).
    - CVE-2024-27043: Fixed a use-after-free in edia/dvbdev in different places (bsc#1223824).
    - CVE-2024-26840: Fixed a memory leak in cachefiles_add_cache() (bsc#1222976).
    - CVE-2021-47161: Fixed a resource leak in an error handling path in the error handling path of the probe     function in spi spi-fsl-dspi (bsc#1221966).
    - CVE-2022-48651: Fixed an out-of-bound bug in ipvlan caused by unset skb->mac_header (bsc#1223513).
    - CVE-2024-26816: Ignore relocations in .notes section when building with CONFIG_XEN_PV=y (bsc#1222624).
    - CVE-2023-52595: Fixed possible deadlock in wifi/rt2x00 (bsc#1221046).
    - CVE-2024-26689: Fixed a use-after-free in encode_cap_msg() (bsc#1222503).
    - CVE-2024-26773: Fixed ext4 block allocation from corrupted group in ext4_mb_try_best_found()     (bsc#1222618).
    - CVE-2021-47182: Fixed scsi_mode_sense() buffer length handling (bsc#1222662).
    - CVE-2022-48701: Fixed an out-of-bounds bug in __snd_usb_parse_audio_interface() (bsc#1223921).
    - CVE-2024-26993: Fixed a reference leak in sysfs_break_active_protection() (bsc#1223693)
    - CVE-2023-52650: Added missing check for of_find_device_by_node() (bsc#1223770)
    - CVE-2024-26948: Added a dc_state NULL check in dc_state_release (bsc#1223664)
    - CVE-2024-27013: Limited printing rate when illegal packet received by tun  dev (bsc#1223745).
    - CVE-2024-27014: Prevented deadlock while disabling aRFS (bsc#1223735).
    - CVE-2024-27046: Handled acti_netdevs allocation failure (bsc#1223827).
    - CVE-2021-47162: Fixed a possible memory leak in tipc_buf_append (bsc#1221977).
    - CVE-2024-27072: Removed useless locks in usbtv_video_free() (bsc#1223837).
    - CVE-2024-27075: Avoided stack overflow warnings with clang (bsc#1223842).
    - CVE-2024-27073: Fixed a memory leak in budget_av_attach() (bsc#1223843).
    - CVE-2024-27074: Fixed a memory leak in go7007_load_encoder() (bsc#1223844).
    - CVE-2024-27078: Fixed a memory leak in tpg_alloc() (bsc#1223781).
    - CVE-2023-52652: Fixed a possible name leak in ntb_register_device() (bsc#1223686).
    - CVE-2024-23848: Fixed a use-after-free in cec_queue_msg_fh, related to drivers/media/cec/core/cec-adap.c     and drivers/media/cec/core/cec-api.c (bsc#1219104).
    - CVE-2024-26859: Prevent access to a freed page in page_pool in bnx2x (bsc#1223049).
    - CVE-2024-26817: Used calloc instead of kzalloc to avoid integer overflow (bsc#1222812)
    - CVE-2021-47149: Fixed a potential null pointer deref in fmvj18x_get_hwinfo() (bsc#1221972).
    - CVE-2023-52620: Disallowed timeout for anonymous sets in nf_tables (bsc#1221825).
    - CVE-2024-26852: Fixed use-after-free in ip6_route_mpath_notify() (bsc#1223057).
    - CVE-2024-26878: Fixed potential NULL pointer dereference, related to dquots (bsc#1223060).
    - CVE-2024-26901: Used kzalloc() to fix information leak in do_sys_name_to_handle() (bsc#1223198).
    - CVE-2024-26671: Fixed an IO hang from sbitmap wakeup race in blk_mq_mark_tag_wait() (bsc#1222357).
    - CVE-2024-26772: Avoided allocating blocks from corrupted group in ext4_mb_find_by_goal() (bsc#1222613).
    - CVE-2023-52614: Fixed a buffer overflow in trans_stat_show() (bsc#1221617).
    - CVE-2024-26855: Fixed a potential NULL pointer dereference in ice_bridge_setlink() (bsc#1223051).
    - CVE-2024-26857: Made sure to pull inner header in geneve_rx() (bsc#1223058).
    - CVE-2024-26675: Limited MRU to 64K in ppp_async_ioctl() (bsc#1222379).
    - CVE-2024-26907: Fixed a fortify source warning while accessing Eth segment in mlx5 (bsc#1223203).
    - CVE-2023-52488: Converted from _raw_ to _noinc_ regmap functions for FIFO in sc16is7xx (bsc#1221162).
    - CVE-2024-26922: Validated the parameters of bo mapping operations more clearly (bsc#1223315).
    - CVE-2021-47184: Fixed NULL pointer dereference on VSI filter sync (bsc#1222666).
    - CVE-2023-52635: Synchronized devfreq_monitor_[start/stop] for devfreq (bsc#1222294).
    - CVE-2024-26883: Checked for integer overflow when using roundup_pow_of_two()  (bsc#1223035).
    - CVE-2024-26884: Fixed a bpf hashtab overflow check on 32-bit architectures (bsc#1223189).
    - CVE-2024-26839: Fixed a memleak in init_credit_return() (bsc#1222975)
    - CVE-2023-52644: Stop/wake correct queue in DMA Tx path when QoS is disabled in b43 (bsc#1222961).
    - CVE-2021-47205: Unregistered clocks/resets when unbinding in sunxi-ng (bsc#1222888).
    - CVE-2021-47211: Fixed a null pointer dereference on pointer cs_desc in usb-audio (bsc#1222869).
    - CVE-2021-47207: Fixed a null pointer dereference on pointer block in gus (bsc#1222790).
    - CVE-2024-26779: Fixed a race condition on enabling fast-xmit in mac80211 (bsc#1222772).
    - CVE-2024-26777: Error out if pixclock equals zero in fbdev/sis (bsc#1222765)
    - CVE-2024-26778: Error out if pixclock equals zero in fbdev/savage (bsc#1222770)
    - CVE-2024-26747: Fixed a NULL pointer issue with USB parent module's reference (bsc#1222609).


Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - The kernel package contains the Linux kernel (vmlinuz),     the core of any Linux operating system. The kernel     handles the basic functions of the operating system:
    memory allocation, process allocation, device input and     output, etc. Security Fix(es):A vulnerability was found     in the Linux Kernel where the function sunkbd_reinit     having been scheduled by sunkbd_interrupt before sunkbd     being freed. Though the dangling pointer is set to NULL     in sunkbd_disconnect, there is still an alias in     sunkbd_reinit causing Use After Free.(CVE-2020-25669)An     issue was discovered in the Linux kernel through 5.9.1,     as used with Xen through 4.14.x.
    drivers/xen/events/events_base.c allows event-channel     removal during the event-handling loop (a race     condition). This can cause a use-after-free or NULL     pointer dereference, as demonstrated by a dom0 crash     via events for an in-reconfiguration paravirtualized     device, aka CID-073d0552ead5.(CVE-2020-27675)An issue     was discovered in the Linux kernel through 5.9.1, as     used with Xen through 4.14.x. Guest OS users can cause     a denial of service (host OS hang) via a high rate of     events to dom0, aka CID-e99502f76271.(CVE-2020-27673)An     issue was discovered in __split_huge_pmd in     mm/huge_memory.c in the Linux kernel before 5.7.5. The     copy-on-write implementation can grant unintended write     access because of a race condition in a THP mapcount     check, aka CID-c444eb564fb1.(CVE-2020-29368)An issue     was discovered in     drivers/accessibility/speakup/spk_ttyio.c in the Linux     kernel through 5.9.9. Local attackers on systems with     the speakup driver could cause a local denial of     service attack, aka CID-d41227544427. This occurs     because of an invalid free when the line discipline is     used more than once.(CVE-2020-28941)** DISPUTED **     fsfsd fs3xdr.c in the Linux kernel through 5.10.8, when     there is an NFS export of a subdirectory of a     filesystem, allows remote attackers to traverse to     other parts of the filesystem via READDIRPLUS. NOTE:
    some parties argue that such a subdirectory export is     not intended to prevent this attack see also the     exports(5) no_subtree_check default     behavior.(CVE-2021-3178)An issue was discovered in the     Linux kernel through 5.11.3.
    drivers/scsi/scsi_transport_iscsi.c is adversely     affected by the ability of an unprivileged user to     craft Netlink messages.(CVE-2021-27364)An issue was     discovered in the Linux kernel through 5.11.3. A kernel     pointer leak can be used to determine the address of     the iscsi_transport structure. When an iSCSI transport     is registered with the iSCSI subsystem, the transport's     handle is available to unprivileged users via the sysfs     file system, at     /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When     read, the show_transport_handle function (in     drivers/scsi/scsi_transport_iscsi.c) is called, which     leaks the handle. This handle is actually the pointer     to an iscsi_transport struct in the kernel module's     global variables.(CVE-2021-27363)ntfs_read_locked_inode     in the ntfs.ko filesystem driver in the Linux kernel     4.15.0 allows attackers to trigger a use-after-free     read and possibly cause a denial of service (kernel     oops or panic) via a crafted ntfs     filesystem.(CVE-2018-12929)In the Linux kernel 4.15.0,     a NULL pointer dereference was discovered in     hfs_ext_read_extent in hfs.ko. This can occur during a     mount of a crafted hfs     filesystem.(CVE-2018-12928)rtw_wx_set_scan in     drivers/staging/rtl8188eu/os_dep/ioctl_linux.c in the     Linux kernel through 5.11.6 allows writing beyond the     end of the ->ssid[] array. NOTE: from the perspective     of kernel.org releases, CVE IDs are not normally used     for drivers/staging/* (unfinished work) however, system     integrators may have situations in which a     drivers/staging issue is relevant to their own customer     base.(CVE-2021-28660)There is a flaw reported in the     Linux kernel in versions before 5.9 in drivers/gpu/drm     ouveau ouveau_sgdma.c in nouveau_sgdma_create_ttm in     Nouveau DRM subsystem. The issue results from the lack     of validating the existence of an object prior to     performing operations on the object. An attacker with a     local account with a root privilege, can leverage this     vulnerability to escalate privileges and execute code     in the context of the kernel.(CVE-2021-20292)A flaw was     found in the Nosy driver in the Linux kernel. This     issue allows a device to be inserted twice into a     doubly-linked list, leading to a use-after-free when     one of these devices is removed. The highest threat     from this vulnerability is to confidentiality,     integrity, as well as system availability. Versions     before kernel 5.12-rc6 are affected(CVE-2021-3483)In     drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux     kernel through 5.11.8, the RPA PCI Hotplug driver has a     user-tolerable buffer overflow when writing a new     device name to the driver from userspace, allowing     userspace to write data to the kernel stack frame     directly. This occurs because add_slot_store and     remove_slot_store mishandle drc_name '\0' termination,     aka CID-cc7a0bb058b8.(CVE-2021-28972)A race condition     was discovered in get_old_root in fs/btrfs/ctree.c in     the Linux kernel through 5.11.8. It allows attackers to     cause a denial of service (BUG) because of a lack of     locking on an extent buffer before a cloning operation,     aka CID-dbcc7d57bffc.(CVE-2021-28964)An issue was     discovered in the Linux kernel before 5.11.7.
    usbip_sockfd_store in drivers/usb/usbip/stub_dev.c     allows attackers to cause a denial of service (GPF)     because the stub-up sequence has race conditions during     an update of the local and shared status, aka     CID-9380afd6df70.(CVE-2021-29265)The fix for XSA-365     includes initialization of pointers such that     subsequent cleanup code wouldn't use uninitialized or     stale values. This initialization went too far and may     under certain conditions also overwrite pointers which     are in need of cleaning up. The lack of cleanup would     result in leaking persistent grants. The leak in turn     would prevent fully cleaning up after a respective     guest has died, leaving around zombie domains. All     Linux versions having the fix for XSA-365 applied are     vulnerable. XSA-365 was classified to affect versions     back to at least 3.11.(CVE-2021-28688)An issue was     discovered in the Linux kernel before 5.11.3 when a     webcam device exists. video_usercopy in     drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak     for large arguments, aka     CID-fb18802a338b.(CVE-2021-30002)An issue was     discovered in the Linux kernel before 5.8.10.
    virt/kvm/kvm_main.c has a kvm_io_bus_unregister_dev     memory leak upon a kmalloc failure, aka     CID-f65886606c2d.(CVE-2020-36312)An issue was     discovered in the Linux kernel before 5.9.
    arch/x86/kvm/svm/sev.c allows attackers to cause a     denial of service (soft lockup) by triggering     destruction of a large SEV VM (which requires     unregistering many encrypted regions), aka     CID-7be74942f184.(CVE-2020-36311)An issue was     discovered in the Linux kernel before 5.11.11.
    qrtr_recvmsg in net/qrtr/qrtr.c allows attackers to     obtain sensitive information from kernel memory because     of a partially uninitialized data structure, aka     CID-50535249f624.(CVE-2021-29647)An issue was     discovered in the Linux kernel through 5.11.10.
    driverset/ethernet/freescale/gianfar.c in the Freescale     Gianfar Ethernet driver allows attackers to cause a     system crash because a negative fragment size is     calculated in situations involving an rx queue overrun     when jumbo packets are used and NAPI is enabled, aka     CID-d8861bab48b6.(CVE-2021-29264)An out-of-bounds (OOB)     memory access flaw was found in x25_bind in     net/x25/af_x25.c in the Linux kernel version v5.12-rc5.
    A bounds check failure allows a local attacker with a     user account on the system to gain access to     out-of-bounds memory, leading to a system crash or a     leak of internal kernel information. The highest threat     from this vulnerability is to confidentiality,     integrity, as well as system     availability.(CVE-2020-35519)An issue was discovered in     the Linux kernel before 5.11.8. kernel/bpf/verifier.c     has an off-by-one error (with a resultant integer     underflow) affecting out-of-bounds speculation on     pointer arithmetic, leading to side-channel attacks     that defeat Spectre mitigations and obtain sensitive     information from kernel memory, aka     CID-10d2bb2e6b1d.(CVE-2020-27171)An issue was     discovered in the Linux kernel before 5.11.8.
    kernel/bpf/verifier.c performs undesirable     out-of-bounds speculation on pointer arithmetic,     leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from     kernel memory, aka CID-f232326f6966. This affects     pointer types that do not define a     ptr_limit.(CVE-2020-27170)BPF JIT compilers in the     Linux kernel through 5.11.12 have incorrect computation     of branch displacements, allowing them to execute     arbitrary code within the kernel context. This affects     arch/x86 et/bpf_jit_comp.c and arch/x86     et/bpf_jit_comp32.c.(CVE-2021-29154)A race condition in     Linux kernel SCTP sockets (net/sctp/socket.c) before     5.12-rc8 can lead to kernel privilege escalation from     the context of a network service or an unprivileged     process. If sctp_destroy_sock is called without     sock_net(sk)->sctp.addr_wq_lock then an element is     removed from the auto_asconf_splist list without any     proper locking. This can be exploited by an attacker     with network service privileges to escalate to root or     from the context of an unprivileged user directly if a     BPF_CGROUP_INET_SOCK_CREATE is attached which denies     creation of some SCTP socket.(CVE-2021-23133)An issue     was discovered in the FUSE filesystem implementation in     the Linux kernel before 5.10.6, aka CID-5d069dbe8aaf.
    fuse_do_getattr() calls make_bad_inode() in     inappropriate situations, causing a system crash. NOTE:
    the original fix for this vulnerability was incomplete,     and its incompleteness is tracked as     CVE-2021-28950.(CVE-2020-36322)An out-of-bounds (OOB)     memory write flaw was found in list_devices in     drivers/md/dm-ioctl.c in the Multi-device driver module     in the Linux kernel before 5.12. A bound check failure     allows an attacker with special user (CAP_SYS_ADMIN)     privilege to gain access to out-of-bounds memory     leading to a system crash or a leak of internal kernel     information. The highest threat from this vulnerability     is to system availability.(CVE-2021-31916)An issue was     discovered in the Linux kernel through 5.11.x.
    kernel/bpf/verifier.c performs undesirable     out-of-bounds speculation on pointer arithmetic,     leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from     kernel memory. Specifically, for sequences of pointer     arithmetic operations, the pointer modification     performed by the first operation is not correctly     accounted for when restricting subsequent     operations.(CVE-2021-29155)kernel/bpf/verifier.c in the     Linux kernel through 5.12.1 performs undesirable     speculative loads, leading to disclosure of stack     content via side-channel attacks, aka CID-801c6058d14a.
    The specific concern is not protecting the BPF stack     area against speculative loads. Also, the BPF stack can     contain uninitialized data that might represent     sensitive information previously operated on by the     kernel.(CVE-2021-31829)The Linux kernel before 5.11.14     has a use-after-free in cipso_v4_genopt in     net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO     refcounting for the DOI definitions is mishandled, aka     CID-ad5d07f4a9cd. This leads to writing an arbitrary     value.(CVE-2021-33033)kernel/bpf/verifier.c in the     Linux kernel through 5.12.7 enforces incorrect limits     for pointer arithmetic operations, aka     CID-bb01a1bba579. This can be abused to perform     out-of-bounds reads and writes in kernel memory,     leading to local privilege escalation to root. In     particular, there is a corner case where the off reg     causes a masking direction change, which then results     in an incorrect final aux->alu_limit.(CVE-2021-33200)An     issue was discovered in the Linux kernel through     5.11.3. Certain iSCSI data structures do not have     appropriate length constraints or checks, and can     exceed the PAGE_SIZE value. An unprivileged user can     send a Netlink message that is associated with iSCSI,     and has a length up to the maximum length of a Netlink     message.(CVE-2021-27365)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
149462	SUSE SLES15セキュリティ更新プログラム: カーネル(SUSE-SU-2021:1573-1)	Nessus	SuSE Local Security Checks	2021/5/13	2024/1/2	high
150901	SUSE SLED15/ SLES15セキュリティ更新プログラム: カーネル (SUSE-SU-2021:1977-1)	Nessus	SuSE Local Security Checks	2021/6/21	2023/7/13	critical
150927	SUSE SLES15 セキュリティ更新プログラム: カーネル (SUSE-SU-2021:1975-1)	Nessus	SuSE Local Security Checks	2021/6/21	2023/7/13	critical
148698	SUSE SLES15セキュリティ更新プログラム: カーネル(SUSE-SU-2021:1211-1)	Nessus	SuSE Local Security Checks	2021/4/16	2024/1/4	critical
197055	SUSE SLES12 セキュリティ更新 : kernel (SUSE-SU-2024:1643-1)	Nessus	SuSE Local Security Checks	2024/5/15	2024/12/27	high
151042	EulerOS 2.0 SP8 : kernel (EulerOS-SA-2021-1983)	Nessus	Huawei Local Security Checks	2021/6/28	2023/12/12	high
151756	openSUSE 15 Security Update : kernel (openSUSE-SU-2021:1977-1)	Nessus	SuSE Local Security Checks	2021/7/16	2023/1/17	critical
148747	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:1238-1)	Nessus	SuSE Local Security Checks	2021/4/19	2024/1/4	critical
152313	EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-2272)	Nessus	Huawei Local Security Checks	2021/8/9	2023/12/6	high
155145	CentOS 8 : kernel (CESA-2021:4356)	Nessus	CentOS Local Security Checks	2021/11/11	2024/1/16	high
155172	RHEL 8 : kernel-rt (RHSA-2021:4140)	Nessus	Red Hat Local Security Checks	2021/11/11	2024/11/7	high
155070	CentOS 8 : kernel-rt (CESA-2021:4140)	Nessus	CentOS Local Security Checks	2021/11/11	2024/1/16	high
230253	Linux Distros Unpatched Vulnerability : CVE-2020-36312	Nessus	Misc.	2025/3/5	2025/3/5	medium
198237	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2024:1870-1)	Nessus	SuSE Local Security Checks	2024/5/31	2025/1/1	high
151307	EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-2075)	Nessus	Huawei Local Security Checks	2021/7/2	2023/12/11	high

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