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-2020-0543：特殊レジスターに対するサイドチャネル攻撃を修正しました。この攻撃は、読み取り値をそれを呼び出したコア以外のコアに漏洩する可能性がありました。この攻撃は、特殊レジスターバッファデータサンプリング（SRBDS）または「CrossTalk」として知られています（bsc#1154824）。

CVE-2020-9383：FDCインデックスの不適切なエラー状態チェックが原因の領域外読み取りを修正しました（bsc#1165111）。

CVE-2020-8992：攻撃者が細工されたジャーナルサイズを介してソフトロックアップを引き起こす可能性のある問題を修正しました（bsc#1164069）。

CVE-2020-8834：カーネルパニックにつながる可能性があるスタック破損を修正しました（bsc#1168276）。

CVE-2020-8649：drivers/video/console/vgacon.c内のvgacon_invert_region関数のメモリ解放後使用を修正しました（bsc#1162931）。

CVE-2020-8648：drivers/tty/n_tty内のn_tty_receive_buf_common関数のメモリ解放後使用を修正しました（bsc#1162928）。

CVE-2020-8647：drivers/tty/vt/vt.c内のvc_do_resize関数のメモリ解放後使用を修正しました（bsc#1162929）。

CVE-2020-8428：ローカルユーザーがサービス拒否を引き起こす可能性のあるメモリ解放後使用を修正しました（bsc#1162109）。

CVE-2020-7053：drivers/gpu/drm/i915/i915_gem_gtt.c内のi915_ppgtt_close functionにおけるメモリ解放後使用を修正しました（bsc#1160966）。

CVE-2020-2732：Intel CPUに影響する問題を修正しました。この問題では、L2ゲストがL0ハイパーバイザーを騙して機密性の高いL1リソースにアクセスさせる可能性があります（bsc#1163971）。

CVE-2020-13143：drivers/usb/gadget/configfs.c内のgadget_dev_desc_UDC_storeの領域外読み取りを修正しました（bsc#1171982）。

CVE-2020-12769：攻撃者がdw_spi_irqとdw_spi_transfer_oneを同時に呼び出してパニックを引き起こす可能性がある問題を修正しました（bsc#1171983）。

CVE-2020-12657：block/bfq-iosched.cにおけるUse-After-Free（bsc#1171205）。

CVE-2020-12656：メモリリークを引き起こす可能性がある特定のdomain_release呼び出しleadingchの不適切な処理を修正しました（bsc#1171219）。

CVE-2020-12655：攻撃者が細工されたメタデータを含むXFS v5画像を介して過剰な期間の同期をトリガーする可能性があった問題を修正しました（bsc#1171217）。

CVE-2020-12654：リモートAPがヒープベースのバッファオーバーフローを引き起こす可能性があるwifiドライバーの問題を修正しました（bsc#1171202）。

CVE-2020-12653：ローカルユーザーが権限を取得したり、サービス拒否を引き起こしたりする可能性があったwifiドライバーの問題を修正しました（bsc#1171195）。

CVE-2020-12652：ローカルユーザーがioctl操作中に不適切なロックを保持し、競合状態を引き起こす可能性がある問題を修正しました（bsc#1171218）。

CVE-2020-12464：参照なしの転送によるUse-After-Freeを修正しました（bsc#1170901）。

CVE-2020-12114：ローカルユーザーがマウントポイント参照カウンターを破損することで、サービス拒否（パニック）を引き起こす可能性のあるpivot_rootの競合状態を修正しました（bsc#1171098）。

CVE-2020-11669：arch/powerpc/kernel/idle_book3s.SにPNV_POWERSAVE_AMR、PNV_POWERSAVE_UAMOR、PNV_POWERSAVE_AMORの保存/復元機能がない問題を修正しました（bnc#1169390）。

CVE-2020-11609：記述子の不適切な処理によるNULLポインターデリファレンスを修正しました（bsc#1168854）。

CVE-2020-11608：細工されたUSBを介したNULLポインターデリファレンスを修正しました（bsc#1168829）。

CVE-2020-11494：攻撃者が、初期化されていないcan_frameデータを読み取る可能性のある問題を修正しました（bsc#1168424）。

CVE-2020-10942：細工されたシステムコールを介したカーネルスタックの破損を修正しました（bsc#1167629）。

CVE-2020-10757：hugepage DAXをanon mmapにリマッピングすると、ユーザーのPTEアクセスが引き起こされる可能性がある問題を修正しました（bsc#1172317）。

CVE-2020-10751：skbに単一のnetlinkメッセージのみが含まれると想定されていたSELinuxLSMフックの不適切な実装を修正しました（bsc#1171189）。

CVE-2020-10732：初期化されていないデータによるユーザー空間coredumpでのカーネルデータ流出を修正しました（bsc#1171220）。

CVE-2020-10720：napi_gro_frags（）内のメモリ解放後使用読み取りを修正しました（bsc#1170778）。

CVE-2020-10711：リモートネットワークユーザーがカーネルをクラッシュし、サービス拒否を引き起こす可能性のあったSELinuxサブシステムのNULLポインターデリファレンスを修正しました（bsc#1171191）。

CVE-2020-10690：ptp_clockとcdevのリリースの間の競合を修正しました（bsc#1170056）。

CVE-2019-9458：権限昇格につながる可能性のある競合状態によるメモリ解放後使用を修正しました（bsc#1168295）。

CVE-2019-9455：ビデオドライバーのWARN_ONステートメントによるポインター漏洩を修正しました。これにより、システム実行権限が必要なローカル情報漏洩が引き起こされる可能性がありました（bsc#1170345）。

CVE-2019-3701：システムクラッシュを引き起こす可能性のある、can_can_gw_rcv内の問題を修正しました（bsc#1120386）。

CVE-2019-20812：サービス拒否を引き起こす可能性があるprb_calc_reire_blk_tmo（）の問題を修正しました（bsc#1172453）。

CVE-2019-20810：snd_card_freeを呼び出さないことによるメモリリークを修正しました（bsc#1172458）。

CVE-2019-20096：サービス拒否を引き起こす可能性のある、net/dccp/feat.c内の__feat_register_sp（）のメモリリークを修正しました（bsc#1159908）。

CVE-2019-20095：メモリリークを引き起こす、割り当てられたhostcmdメモリを解放しない不適切なエラー処理を修正しました（bsc#1159909）。

CVE-2019-20054：fs/proc/proc_sysctl.c内のdrop_sysctl_table（）のNULLポインターデリファレンスを修正しました。これは、put_linksに関連します（bsc#1159910）。

CVE-2019-19966：サービス拒否を引き起こす可能性のあるcpia2_exit（）内のメモリ解放後使用を修正しました（bsc#1159841）。

CVE-2019-19965：検出中のポート切断の不適切な処理による、NULLポインターデリファレンスを修正しました（bsc#1159911）。

CVE-2019-19770：debugfs_remove関数内のメモリ解放後使用を修正しました（bsc#1159198）。

CVE-2019-19768：kernel/trace/blktrace.c内の__blk_add_traceのメモリ解放後使用を修正しました（bsc#1159285）。

CVE-2019-19462：ローカルユーザーがサービス拒否を引き起こす可能性があった問題を修正しました（bsc#1158265）。

CVE-2019-19447：細工されたext4ファイルシステムイメージによるメモリ解放後使用を修正しました（bsc#1158819）。

CVE-2019-19319：大きなold_size値がmemsetの呼び出しで使用された場合のメモリ解放後使用を修正しました（bsc#1158021）。

CVE-2019-19318：細工されたbtrfsイメージを介したメモリ解放後使用を修正しました（bsc#1158026）。

CVE-2019-19054：攻撃者がサービス拒否を引き起こす可能性のあるcx23888_ir_probe（）のメモリリークを修正しました（bsc#1161518）。

CVE-2019-19045：攻撃者がサービス拒否を引き起こす可能性のあるメモリリークを修正しました（bsc#1161522）。

CVE-2019-19036：btrfs_root_node内のNULLポインターデリファレンスを修正しました（bsc#1157692）。

CVE-2019-16994：サービス拒否を引き起こす可能性のあるメモリリークを修正しました（bsc#1161523）。

CVE-2019-14897：Marvell Wifiドライバー内のスタックオーバーフローを修正しました（bsc#1157155）。

CVE-2019-14896：Marvell WiFiドライバー内ヒープオーバーフローを修正しました（bsc#1157157）。

CVE-2019-14615：情報漏洩を引き起こす可能性のある、特定のデータ構造での不適切な制御フローを修正しました（bsc#1160195）。

CVE-2018-1000199：ptraceを介したローカルコード実行の可能性を修正しました（bsc#1089895）。

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-2019-19462：Linuxカーネルのkernel/relay.c内のrelay_openでは、ローカルユーザーがNULLのalloc_percpu結果をトリガーすることによってサービス拒否（中継妨害など）を引き起こす可能性があります（bnc#1158265）。

CVE-2019-20810：失敗したパスに対してsnd_card_freeを呼び出さなかったために発生する、drivers/media/usb/go7007/snd-go7007.cのgo7007_snd_initでのメモリリークを修正しました（bnc#1172458）。

CVE-2019-20812：net/packet/af_packet.c内のprb_calc_retire_blk_tmo()関数が、TPACKET_V3に関連する特定のエラーケースでサービス拒否（CPU消費とソフトロックアップ）を引き起こす可能性があるという問題が検出されました（bnc#1172453）。

CVE-2020-0305：char_dev.cのcdev_getでは、競合状態によりUse-After-Freeが発生する可能性があります。これにより、システム実行権限が必要なローカルでの権限昇格が引き起こされる可能性があります。悪用はユーザーの操作を必要としません（bnc#1174462）。

CVE-2020-10135：Bluetooth® BR/EDR Core Specification v5.2以前のレガシーペアリングおよび安全な接続のペア認証では、認証されていないユーザーが隣接アクセスを介して認証情報をペアリングせずに認証を完了する可能性があります。認証されていない近接の攻撃者がBluetooth BR/EDRマスターまたはスレーブになりすまして、以前にペアリングしたリモートデバイスとペアリングさせ、リンクキーを知らなくても認証手順を正常に完了する可能性があります（bnc#1171988）。

CVE-2020-10711：複数バージョンのSELinuxサブシステムに、NULLポインターデリファレンスの欠陥が見つかりました。この欠陥は、「ebitmap_netlbl_import」ルーチンを通じて商用IPセキュリティオプション（CIPSO）プロトコルのカテゴリビットマップをSELinux拡張可能ビットマップにインポートする際に発生します。
この欠陥により、リモートのネットワークユーザーがシステムカーネルをクラッシュさせ、サービス拒否を引き起こす可能性があります（bnc#1171191）。

CVE-2020-10732：ユーザー空間コアダンプの実装で欠陥が見つかりました。この欠陥により、ローカルアカウントを持つ攻撃者が重要でないプログラムをクラッシュさせ、カーネルのプライベートデータを漏洩させる可能性があります（bnc#1171220）。

CVE-2020-10751：SELinux LSMフック実装で欠陥が見つかりました。この欠陥では、skbに単一のnetlinkメッセージのみが含まれていると誤って想定されます。フックは、skb内の最初のnetlinkメッセージのみを誤って検証し、それ以上の処理を行わずに、付与された権限でskb内の残りのメッセージを許可または拒否します（bnc#1171189）。

CVE-2020-10766：ローカルアカウントを持つ攻撃者がSSBD保護を無効にできる問題を修正しました（bnc#1172781）。

CVE-2020-10767：特定の状況で間接分岐予測バリアが無効になり、システムがSpectre v2形式の攻撃に対して無防備になる問題を修正しました（bnc#1172782）。

CVE-2020-10768：間接分岐投機が以前に無効化されていても有効化される可能性がある、prctl()関数の問題を修正しました（bnc#1172783）。

CVE-2020-10773：arch/s390/mm/cmm.cファイルのcmm_timeout_hander内のs390/s390xにおけるメモリリークを修正しました（bnc#1172999）。

CVE-2020-10781：zram sysfsのリソース消費が修正されました（bnc#1173074）。

CVE-2020-12656：特定のdomain_release呼び出しの欠如によって発生する、rpcsec_gss_krb5実装内のgss_mech_freeにおけるメモリリークを修正しました（bnc#1171219）。

CVE-2020-12769：攻撃者がdw_spi_irqおよびdw_spi_transfer_oneへの同時呼び出しによってパニックを引き起こすことができる問題がdrivers/spi/spi-dw.cで発見されました（bnc#1171983）。

CVE-2020-12771：drivers/md/bcache/btree.c内のbtree_gc_coalesceで、一体化操作が失敗した場合にデッドロックが発生する問題が検出されました（bnc#1171732）。

CVE-2020-12888：VFIO PCIドライバーは、無効なメモリ空間へのアクセスの試行を誤って処理します（bnc#1171868）。

CVE-2020-13143：drivers/usb/gadget/configfs.cのgadget_dev_desc_UDC_storeは、内部の「\0」値の可能性を考慮せずにkstrdupを利用します。これにより、攻撃者が領域外読み取りをトリガーする可能性があります（bnc#1171982）。

CVE-2020-13974：k_asciiが連続して複数回呼び出された場合に発生する、drivers/tty/vt/keyboard.cの整数オーバーフローを修正しました（bnc#1172775）。

CVE-2020-14416：slipおよびslcan回線制御のtty->disc_data処理における競合状態によって、Use-After-Freeが引き起こされる可能性がある問題を修正しました。
これはdrivers/net/slip/slip.cおよびdrivers/net/can/slcan.cに影響します（bnc#1162002）。

CVE-2020-15393：usbtest_disconnectでのメモリリークを修正しました（bnc#1173514）。

CVE-2020-15780：drivers/acpi/acpi_configfs.cで問題が検出されました。これは、攻撃者が構成を介した悪意のあるACPIテーブルのインジェクションにより、ロックダウンとセキュアブート制限をバイパスすることができるというものです（別名CID-75b0cea7bf30）（bnc#1173573）。

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 12 SP2カーネルが、さまざまなセキュリティとバグの修正が行われるように更新されました。

以下のセキュリティバグが修正されました。

CVE-2020-10135：Bluetoothのレガシーペアリングおよび安全な接続のペア認証では、認証されていないユーザーが隣接アクセスを介して認証情報をペアリングせずに認証を完了する可能性がありました。認証されていない近接の攻撃者がBluetooth BR/EDRマスターまたはスレーブになりすまして、以前にペアリングしたリモートデバイスとペアリングさせ、リンクキーを知らなくても認証手順を正常に完了する可能性があります（bnc#1171988）。

CVE-2020-10711：SELinuxサブシステムに、NULLポインターデリファレンスの欠陥が見つかりました。この欠陥は、「ebitmap_netlbl_import」ルーチンを通じて商用IPセキュリティオプション（CIPSO）プロトコルのカテゴリビットマップをSELinux拡張可能ビットマップにインポートする際に発生します。この欠陥により、リモートのネットワークユーザーがシステムカーネルをクラッシュさせ、サービス拒否を引き起こす可能性があります（bnc#1171191）。

CVE-2020-10751：SELinux LSMフック実装で欠陥が見つかりました。この欠陥では、skbに単一のnetlinkメッセージのみが含まれていると誤って想定されます。フックは、skb内の最初のnetlinkメッセージのみを誤って検証し、それ以上の処理を行わずに、付与された権限でskb内の残りのメッセージを許可または拒否します（bnc#1171189）。

CVE-2019-20812：net/packet/af_packet.c内のprb_calc_retire_blk_tmo()関数が、TPACKET_V3に関連する特定のエラーケースでサービス拒否（CPU消費とソフトロックアップ）を引き起こす可能性がある問題が検出されました（CID-b43d1f9f7067）（bnc#1172453）。

CVE-2020-10732：ユーザー空間コアダンプの実装で欠陥が見つかりました。この欠陥により、ローカルアカウントを持つ攻撃者が重要でないプログラムをクラッシュさせ、カーネルのプライベートデータを漏洩させる可能性があります（bnc#1171220）。

CVE-2020-0305：char_dev.cのcdev_getでは、競合状態によりUse-After-Freeが発生する可能性があります。これにより、システム実行権限が必要なローカルでの権限昇格が引き起こされる可能性があります。悪用はユーザーの操作を必要としません（bnc#1174462）。

CVE-2020-12771：drivers/md/bcache/btree.c内のbtree_gc_coalesceでは、一体化操作が失敗した場合にデッドロックが発生しました（bnc#1171732）。

CVE-2020-10773：s390/s390xにおけるカーネルスタック情報の漏洩が終止されました（bnc#1172999）。

CVE-2020-14416：slipおよびslcan回線制御のtty->disc_data処理における競合状態によって、Use-After-Freeが引き起こされる可能性があります（CID-0ace17d56824）。これはdrivers/net/slip/slip.cおよびdrivers/net/can/slcan.cに影響します（bnc#1162002）。

CVE-2020-10768：間接分岐投機は、PR_SPEC_FORCE_DISABLE prctlコマンドによって強制的に無効にされた後、有効にされる可能性があります（bnc#1172783）。

CVE-2020-10766：Linuxスケジューラの論理バグにより攻撃者がSSBD保護を無効にできる、不正なクロスプロセスSSBDシャットダウンを修正しました（bnc#1172781）。

CVE-2020-10767：STIBPが利用できない場合または強化されたIBRSが利用できる場合に、間接分岐予測バリアは強制的に無効にされていました。
（bnc#1172782）。

CVE-2020-13974：k_asciiが連続して複数回呼び出された場合、drivers/tty/vt/keyboard.cで整数オーバーフローが発生しました（CID-b86dab054059）。
（bnc#1172775）。

CVE-2019-20810：Linuxカーネル内のdrivers/media/usb/go7007/snd-go7007.cのgo7007_snd_initが失敗パスに対してsnd_card_freeを呼び出さなかったため、メモリリークが発生しました（CID-9453264ef586）（bnc#1172458）。

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。

セキュリティ問題を修正する新しいカーネルパッケージが、Slackware 14.2で利用可能です。

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

  - In calc_vm_may_flags of ashmem.c, there is a possible     arbitrary write to shared memory due to a permissions     bypass. This could lead to local escalation of     privilege by corrupting memory shared between     processes, with no additional execution privileges     needed. User interaction is not needed for     exploitation. Product: Android Versions: Android kernel     Android ID: A-142938932(CVE-2020-0009)

  - A flaw was found in the Linux kernel's implementation     of Userspace core dumps. This flaw allows an attacker     with a local account to crash a trivial program and     exfiltrate private kernel data.(CVE-2020-10732)

  - An issue was discovered in the Linux kernel before     5.0.6. In rx_queue_add_kobject() and     netdev_queue_add_kobject() in net/core/net-sysfs.c, a     reference count is mishandled, aka     CID-a3e23f719f5c.(CVE-2019-20811)

  - go7007_snd_init in     drivers/media/usb/go7007/snd-go7007.c in the Linux     kernel before 5.6 does not call snd_card_free for a     failure path, which causes a memory leak, aka     CID-9453264ef586.(CVE-2019-20810)

  - A flaw was found in the Linux kernels SELinux LSM hook     implementation before version 5.7, where it incorrectly     assumed that an skb would only contain a single netlink     message. The hook would incorrectly only validate the     first netlink message in the skb and allow or deny the     rest of the messages within the skb with the granted     permission without further processing.(CVE-2020-10751)

  - A signal access-control issue was discovered in the     Linux kernel before 5.6.5, aka CID-7395ea4e65c2.
    Because exec_id in include/linux/sched.h is only 32     bits, an integer overflow can interfere with a     do_notify_parent protection mechanism. A child process     can send an arbitrary signal to a parent process in a     different security domain. Exploitation limitations     include the amount of elapsed time before an integer     overflow occurs, and the lack of scenarios where     signals to a parent process present a substantial     operational threat.(CVE-2020-12826)

  - A NULL pointer dereference flaw was found in the Linux     kernel's SELinux subsystem in versions before 5.7. This     flaw occurs while importing the Commercial IP Security     Option (CIPSO) protocol's category bitmap into the     SELinux extensible bitmap via the'     ebitmap_netlbl_import' routine. While processing the     CIPSO restricted bitmap tag in the     'cipso_v4_parsetag_rbm' routine, it sets the security     attribute to indicate that the category bitmap is     present, even if it has not been allocated. This issue     leads to a NULL pointer dereference issue while     importing the same category bitmap into SELinux. This     flaw allows a remote network user to crash the system     kernel, resulting in a denial of     service.(CVE-2020-10711)

  - gadget_dev_desc_UDC_store in     drivers/usb/gadget/configfs.c in the Linux kernel     through 5.6.13 relies on kstrdup without considering     the possibility of an internal '\0' value, which allows     attackers to trigger an out-of-bounds read, aka     CID-15753588bcd4.(CVE-2020-13143)

  - An issue was discovered in the Linux kernel through     5.6.11. sg_write lacks an sg_remove_request call in a     certain failure case, aka     CID-83c6f2390040.(CVE-2020-12770)

  - __btrfs_free_extent in fs/btrfs/extent-tree.c in the     Linux kernel through 5.3.12 calls btrfs_print_leaf in a     certain ENOENT case, which allows local users to obtain     potentially sensitive information about register values     via the dmesg program. NOTE: The BTRFS development team     disputes this issues as not being a vulnerability     because '1) The kernel provide facilities to restrict     access to dmesg - dmesg_restrict=1 sysctl option. So     it's really up to the system administrator to judge     whether dmesg access shall be disallowed or not. 2)     WARN/WARN_ON are widely used macros in the linux     kernel. If this CVE is considered valid this would mean     there are literally thousands CVE lurking in the kernel
    - something which clearly is not the     case.'(CVE-2019-19039)

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 Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4439-1 advisory.

    It was discovered that the network block device (nbd) implementation in the Linux kernel did not properly     check for error conditions in some situations. An attacker could possibly use this to cause a denial of     service (system crash). (CVE-2019-16089)

    It was discovered that the btrfs file system implementation in the Linux kernel did not properly validate     file system metadata in some situations. An attacker could use this to construct a malicious btrfs image     that, when mounted, could cause a denial of service (system crash). (CVE-2019-19036)

    It was discovered that the kernel->user space relay implementation in the Linux kernel did not properly     check return values in some situations. A local attacker could possibly use this to cause a denial of     service (system crash). (CVE-2019-19462)

    Chuhong Yuan discovered that go7007 USB audio device driver in the Linux kernel did not properly     deallocate memory in some failure conditions. A physically proximate attacker could use this to cause a     denial of service (memory exhaustion). (CVE-2019-20810)

    It was discovered that the elf handling code in the Linux kernel did not initialize memory before using it     in certain situations. A local attacker could use this to possibly expose sensitive information (kernel     memory). (CVE-2020-10732)

    Fan Yang discovered that the mremap implementation in the Linux kernel did not properly handle DAX Huge     Pages. A local attacker with access to DAX storage could use this to gain administrative privileges.
    (CVE-2020-10757)

    It was discovered that the Linux kernel did not correctly apply Speculative Store Bypass Disable (SSBD)     mitigations in certain situations. A local attacker could possibly use this to expose sensitive     information. (CVE-2020-10766)

    It was discovered that the Linux kernel did not correctly apply Indirect Branch Predictor Barrier (IBPB)     mitigations in certain situations. A local attacker could possibly use this to expose sensitive     information. (CVE-2020-10767)

    It was discovered that the Linux kernel could incorrectly enable Indirect Branch Speculation after it has     been disabled for a process via a prctl() call. A local attacker could possibly use this to expose     sensitive information. (CVE-2020-10768)

    Mauricio Faria de Oliveira discovered that the aufs implementation in the Linux kernel improperly managed     inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to     cause a denial of service. (CVE-2020-11935)

    It was discovered that the Virtual Terminal keyboard driver in the Linux kernel contained an integer     overflow. A local attacker could possibly use this to have an unspecified impact. (CVE-2020-13974)

    It was discovered that the efi subsystem in the Linux kernel did not handle memory allocation failures     during early boot in some situations. A local attacker could possibly use this to cause a denial of     service (system crash). (CVE-2019-12380)

    Jason A. Donenfeld discovered that the ACPI implementation in the Linux kernel did not properly restrict     loading SSDT code from an EFI variable. A privileged attacker could use this to bypass Secure Boot     lockdown restrictions and execute arbitrary code in the kernel. (CVE-2019-20908)

    Jason A. Donenfeld discovered that the ACPI implementation in the Linux kernel did not properly restrict     loading ACPI tables via configfs. A privileged attacker could use this to bypass Secure Boot lockdown     restrictions and execute arbitrary code in the kernel. (CVE-2020-15780)

Tenable has extracted the preceding description block directly from the Ubuntu 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 SUSE Linux Enterprise 12 SP4 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).

CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).

CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).

CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c has a memory leak, aka CID-28ebeb8db770 (bnc#1173514).

CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).

CVE-2019-16746: net/wireless/nl80211.c did not check the length of variable elements in a beacon head, leading to a buffer overflow (bnc#1152107).

CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).

CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).

CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).

CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).

CVE-2020-10768: Indirect branch speculation could have been enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (bnc#1172783).

CVE-2020-10766: Fixed Rogue cross-process SSBD shutdown, where a Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (bnc#1172781).

CVE-2020-10767: Indirect Branch Prediction Barrier was force-disabled when STIBP is unavailable or enhanced IBRS is available.
(bnc#1172782).

CVE-2020-13974: drivers/tty/vt/keyboard.c had an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059.
(bnc#1172775).

CVE-2019-20810: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c in the Linux kernel did not call snd_card_free for a failure path, which causes a memory leak, aka CID-9453264ef586 (bnc#1172458).

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):An issue was discovered in     the Linux kernel before 5.2. There is a NULL pointer     dereference in tw5864_handle_frame() in     drivers/media/pci/tw5864/tw5864-video.c, which may     cause denial of service, aka     CID-2e7682ebfc75.(CVE-2019-20806)A flaw was found in     the ZRAM kernel module, where a user with a local     account and the ability to read the     /sys/class/zram-control/hot_add file can create ZRAM     device nodes in the /dev/ directory. This read     allocates kernel memory and is not accounted for a user     that triggers the creation of that ZRAM device. With     this vulnerability, continually reading the device may     consume a large amount of system memory and cause the     Out-of-Memory (OOM) killer to activate and terminate     random userspace processes, possibly making the system     inoperable.(CVE-2020-10781)In the Linux kernel before     5.4.16, a race condition in tty->disc_data handling in     the slip and slcan line discipline could lead to a     use-after-free, aka CID-0ace17d56824. This affects     drivers/ net/slip/slip.c and drivers/     net/can/slcan.c.(CVE-2020-14416)The VFIO PCI driver in     the Linux kernel through 5.6.13 mishandles attempts to     access disabled memory space.(CVE-2020-12888)The     flow_dissector feature in the Linux kernel 4.3 through     5.x before 5.3.10 has a device tracking vulnerability,     aka CID-55667441c84f. This occurs because the auto     flowlabel of a UDP IPv6 packet relies on a 32-bit     hashrnd value as a secret, and because jhash (instead     of siphash) is used. The hashrnd value remains the same     starting from boot time, and can be inferred by an     attacker. This affects net/core/flow_dissector.c and     related code.(CVE-2019-18282)In the Linux kernel     through 5.7.6, usbtest_disconnect in     drivers/usb/misc/usbtest.c has a memory leak, aka     CID-28ebeb8db770.(CVE-2020-15393)An issue was     discovered in the Linux kernel before 5.0.6. In     rx_queue_add_kobject() and netdev_queue_add_kobject()     in net/core/ net-sysfs.c, a reference count is     mishandled, aka CID-a3e23f719f5c.(CVE-2019-20811)A flaw     was found in the Linux kernels SELinux LSM hook     implementation before version 5.7, where it incorrectly     assumed that an skb would only contain a single netlink     message. The hook would incorrectly only validate the     first netlink message in the skb and allow or deny the     rest of the messages within the skb with the granted     permission without further     processing.(CVE-2020-10751)In the Android kernel in     F2FS driver there is a possible out of bounds read due     to a missing bounds check. This could lead to local     information disclosure with system execution privileges     needed. User interaction is not needed for     exploitation.(CVE-2019-9445)A flaw was found in the     Linux kernel's implementation of Userspace core dumps.
    This flaw allows an attacker with a local account to     crash a trivial program and exfiltrate private kernel     data.(CVE-2020-10732)go7007_snd_init in     drivers/media/usb/go7007/snd-go7007.c in the Linux     kernel before 5.6 does not call snd_card_free for a     failure path, which causes a memory leak, aka     CID-9453264ef586.(CVE-2019-20810)Legacy pairing and     secure-connections pairing authentication in Bluetooth(r)     BR/EDR Core Specification v5.2 and earlier may allow an     unauthenticated user to complete authentication without     pairing credentials via adjacent access. An     unauthenticated, adjacent attacker could impersonate a     Bluetooth BR/EDR master or slave to pair with a     previously paired remote device to successfully     complete the authentication procedure without knowing     the link key.(CVE-2020-10135)An issue was discovered in     the Linux kernel before 5.4.7. The     prb_calc_retire_blk_tmo() function in     net/packet/af_packet.c can result in a denial of     service (CPU consumption and soft lockup) in a certain     failure case involving TPACKET_V3, aka     CID-b43d1f9f7067.(CVE-2019-20812)An issue was     discovered in the Linux kernel through 5.7.1.
    drivers/tty/vt/keyboard.c has an integer overflow if     k_ascii is called several times in a row, aka     CID-b86dab054059. NOTE: Members in the community argue     that the integer overflow does not lead to a security     issue in this case.(CVE-2020-13974)In calc_vm_may_flags     of ashmem.c, there is a possible arbitrary write to     shared memory due to a permissions bypass. This could     lead to local escalation of privilege by corrupting     memory shared between processes, with no additional     execution privileges needed. User interaction is not     needed for exploitation. Product: Android Versions:
    Android kernel Android ID: A-142938932(CVE-2020-0009)A     flaw was found in the Linux Kernel in versions after     4.5-rc1 in the way mremap handled DAX Huge Pages. This     flaw allows a local attacker with access to a DAX     enabled storage to escalate their privileges on the     system.(CVE-2020-10757)gadget_dev_desc_UDC_store in     drivers/usb/gadget/configfs.c in the Linux kernel     through 5.6.13 relies on kstrdup without considering     the possibility of an internal '\0' value, which allows     attackers to trigger an out-of-bounds read, aka     CID-15753588bcd4.(CVE-2020-13143)Incomplete cleanup     from specific special register read operations in some     Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local     access.(CVE-2020-0543)A flaw was found in the prctl()     function, where it can be used to enable indirect     branch speculation after it has been disabled. This     call incorrectly reports it as being 'force disabled'     when it is not and opens the system to Spectre v2     attacks. The highest threat from this vulnerability is     to confidentiality.(CVE-2020-10768)A flaw was found in     the Linux kernel's implementation of the Enhanced IBPB     (Indirect Branch Prediction Barrier). The IBPB     mitigation will be disabled when STIBP is not available     or when the Enhanced Indirect Branch Restricted     Speculation (IBRS) is available. This flaw allows a     local attacker to perform a Spectre V2 style attack     when this configuration is active. The highest threat     from this vulnerability is to     confidentiality.(CVE-2020-10767)A logic bug flaw was     found in the Linux kernel's implementation of SSBD. A     bug in the logic handling allows an attacker with a     local account to disable SSBD protection during a     context switch when additional speculative execution     mitigations are in place. This issue was introduced     when the per task/process conditional STIPB switching     was added on top of the existing SSBD switching. The     highest threat from this vulnerability is to     confidentiality.(CVE-2020-10766)

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 SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).

CVE-2020-10711: A NULL pointer dereference flaw was found in the SELinux subsystem. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. This flaw allowed a remote network user to crash the system kernel, resulting in a denial of service (bnc#1171191).

CVE-2020-10751: A flaw was found in the SELinux LSM hook implementation, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing (bnc#1171189).

CVE-2019-20812: An issue was discovered in the prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067 (bnc#1172453).

CVE-2020-10732: A flaw was found in the implementation of userspace core dumps. This flaw allowed an attacker with a local account to crash a trivial program and exfiltrate private kernel data (bnc#1171220).

CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).

CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).

CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).

CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).

CVE-2020-13974: drivers/tty/vt/keyboard.c had an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059.
(bnc#1172775).

CVE-2019-20810: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c in the Linux kernel did not call snd_card_free for a failure path, which causes a memory leak, aka CID-9453264ef586 (bnc#1172458).

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.

The SUSE Linux Enterprise 15 SP1 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).

CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).

CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).

CVE-2020-10781: zram sysfs resource consumption was fixed (bnc#1173074).

CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).

CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c had a memory leak, aka CID-28ebeb8db770 (bnc#1173514).

CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).

CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).

CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).

CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).

CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).

CVE-2020-10766: Fixed an issue which allowed an attacker with a local account to disable SSBD protection (bnc#1172781).

CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier was disabled in certain circumstances, leaving the system open to a spectre v2 style attack (bnc#1172782).

CVE-2020-10768: Fixed an issue with the prctl() function, where indirect branch speculation could be enabled even though it was diabled before (bnc#1172783).

CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c, if k_ascii is called several times in a row (bnc#1172775).

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12659: Fixed an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) due to improper headroom validation (bsc#1171214).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2019-20810: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c did not call snd_card_free for a failure path, which caused a memory leak, aka CID-9453264ef586 (bnc#1172458).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

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.

This update syncs the RT kernel from the SUSE Linux Enterprise 15-SP2 codestream. This update was imported from the SUSE:SLE-15-SP2:Update update project.

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 :

  - In calc_vm_may_flags of ashmem.c, there is a possible     arbitrary write to shared memory due to a permissions     bypass. This could lead to local escalation of     privilege by corrupting memory shared between     processes, with no additional execution privileges     needed. User interaction is not needed for     exploitation. Product: Android Versions: Android kernel     Android ID: A-142938932(CVE-2020-0009)

  - A flaw was found in the Linux Kernel in versions after     4.5-rc1 in the way mremap handled DAX Huge Pages. This     flaw allows a local attacker with access to a DAX     enabled storage to escalate their privileges on the     system.(CVE-2020-10757)

  - go7007_snd_init in     drivers/media/usb/go7007/snd-go7007.c in the Linux     kernel before 5.6 does not call snd_card_free for a     failure path, which causes a memory leak, aka     CID-9453264ef586.(CVE-2019-20810)

  - In the Android kernel in F2FS driver there is a     possible out of bounds read due to a missing bounds     check. This could lead to local information disclosure     with system execution privileges needed. User     interaction is not needed for     exploitation.(CVE-2019-9445)

  - A flaw was found in the Linux kernels SELinux LSM hook     implementation before version 5.7, where it incorrectly     assumed that an skb would only contain a single netlink     message. The hook would incorrectly only validate the     first netlink message in the skb and allow or deny the     rest of the messages within the skb with the granted     permission without further processing.(CVE-2020-10751)

  - An issue was discovered in the Linux kernel before     5.4.7. The prb_calc_retire_blk_tmo() function in     net/packet/af_packet.c can result in a denial of     service (CPU consumption and soft lockup) in a certain     failure case involving TPACKET_V3, aka     CID-b43d1f9f7067.(CVE-2019-20812)

  - ** DISPUTED ** An issue was discovered in the Linux     kernel through 5.7.1. drivers/tty/vt/keyboard.c has an     integer overflow if k_ascii is called several times in     a row, aka CID-b86dab054059. NOTE: Members in the     community argue that the integer overflow does not lead     to a security issue in this case.(CVE-2020-13974)

  - An issue was discovered in the Linux kernel before     5.0.6. In rx_queue_add_kobject() and     netdev_queue_add_kobject() in net/core/net-sysfs.c, a     reference count is mishandled, aka     CID-a3e23f719f5c.(CVE-2019-20811)

  - A flaw was found in the prctl() function, where it can     be used to enable indirect branch speculation after it     has been disabled. This call incorrectly reports it as     being 'force disabled' when it is not and opens the     system to Spectre v2 attacks. The highest threat from     this vulnerability is to     confidentiality.(CVE-2020-10768)

  - A flaw was found in the Linux kernel's implementation     of the Enhanced IBPB (Indirect Branch Prediction     Barrier). The IBPB mitigation will be disabled when     STIBP is not available or when the Enhanced Indirect     Branch Restricted Speculation (IBRS) is available. This     flaw allows a local attacker to perform a Spectre V2     style attack when this configuration is active. The     highest threat from this vulnerability is to     confidentiality.(CVE-2020-10767)

  - A logic bug flaw was found in the Linux kernel's     implementation of SSBD. A bug in the logic handling     allows an attacker with a local account to disable SSBD     protection during a context switch when additional     speculative execution mitigations are in place. This     issue was introduced when the per task/process     conditional STIPB switching was added on top of the     existing SSBD switching. The highest threat from this     vulnerability is to confidentiality.(CVE-2020-10766)

  - A new domain bypass transient execution attack known as     Special Register Buffer Data Sampling (SRBDS) has been     found. This flaw allows data values from special     internal registers to be leaked by an attacker able to     execute code on any core of the CPU. An unprivileged,     local attacker can use this flaw to infer values     returned by affected instructions known to be commonly     used during cryptographic operations that rely on     uniqueness, secrecy, or both.(CVE-2020-0543)

  - In the Linux kernel before 5.4.16, a race condition in     tty->disc_data handling in the slip and slcan line     discipline could lead to a use-after-free, aka     CID-0ace17d56824. This affects drivers/net/slip/slip.c     and drivers/net/can/slcan.c.(CVE-2020-14416)

  - The flow_dissector feature in the Linux kernel 4.3     through 5.x before 5.3.10 has a device tracking     vulnerability, aka CID-55667441c84f. This occurs     because the auto flowlabel of a UDP IPv6 packet relies     on a 32-bit hashrnd value as a secret, and because     jhash (instead of siphash) is used. The hashrnd value     remains the same starting from boot time, and can be     inferred by an attacker. This affects     net/core/flow_dissector.c and related     code.(CVE-2019-18282)

  - The VFIO PCI driver in the Linux kernel through 5.6.13     mishandles attempts to access disabled memory     space.(CVE-2020-12888)

  - In the Linux kernel through 5.7.6, usbtest_disconnect     in drivers/usb/misc/usbtest.c has a memory leak, aka     CID-28ebeb8db770.(CVE-2020-15393)

  - A flaw was found in the ZRAM kernel module, where a     user with a local account and the ability to read the     /sys/class/zram-control/hot_add file can create ZRAM     device nodes in the /dev/ directory. This read     allocates kernel memory and is not accounted for a user     that triggers the creation of that ZRAM device. With     this vulnerability, continually reading the device may     consume a large amount of system memory and cause the     Out-of-Memory (OOM) killer to activate and terminate     random userspace processes, possibly making the system     inoperable.(CVE-2020-10781)

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.

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):In the Android kernel in     F2FS driver there is a possible out of bounds read due     to a missing bounds check. This could lead to local     information disclosure with system execution privileges     needed. User interaction is not needed for     exploitation.(CVE-2019-9445)In calc_vm_may_flags of     ashmem.c, there is a possible arbitrary write to shared     memory due to a permissions bypass. This could lead to     local escalation of privilege by corrupting memory     shared between processes, with no additional execution     privileges needed. User interaction is not needed for     exploitation. Product: Android Versions: Android kernel     Android ID: A-142938932(CVE-2020-0009)A new domain     bypass transient execution attack known as Special     Register Buffer Data Sampling (SRBDS) has been found.
    This flaw allows data values from special internal     registers to be leaked by an attacker able to execute     code on any core of the CPU. An unprivileged, local     attacker can use this flaw to infer values returned by     affected instructions known to be commonly used during     cryptographic operations that rely on uniqueness,     secrecy, or both.(CVE-2020-0543)A flaw was found in the     Linux kernel's implementation of the BTRFS file system.
    A local attacker, with the ability to mount a file     system, can create a use-after-free memory fault after     the file system has been unmounted. This may lead to     memory corruption or privilege     escalation.(CVE-2019-19377)A NULL pointer dereference     flaw may occur in the Linux kernel's relay_open in     kernel/relay.c. if the alloc_percpu() function is not     validated in time of failure and used as a valid     address for access. An attacker could use this flaw to     cause a denial of service.(CVE-2019-19462)A NULL     pointer dereference flaw was found in     tw5864_handle_frame function in     drivers/media/pci/tw5864/tw5864-video.c in the TW5864     Series Video media driver. The pointer 'vb' is     assigned, but not validated before its use, and can     lead to a denial of service. This flaw allows a local     attacker with special user or root privileges to crash     the system or leak internal kernel     information.(CVE-2019-20806)go7007_snd_init in     drivers/media/usb/go7007/snd-go7007.c in the Linux     kernel before 5.6 does not call snd_card_free for a     failure path, which causes a memory leak, aka     CID-9453264ef586.(CVE-2019-20810)An issue was     discovered in the Linux kernel before 5.0.6. In     rx_queue_add_kobject() and netdev_queue_add_kobject()     in net/coreet-sysfs.c, a reference count is mishandled,     aka CID-a3e23f719f5c.(CVE-2019-20811)A flaw was found     in the way the af_packet functionality in the Linux     kernel handled the retirement timer setting for     TPACKET_v3 when getting settings from the underlying     network device errors out. This flaw allows a local     user who can open the af_packet domain socket and who     can hit the error path, to use this vulnerability to     starve the system.(CVE-2019-20812)A NULL pointer     dereference flaw was found in the Linux kernel's     SELinux subsystem. This flaw occurs while importing the     Commercial IP Security Option (CIPSO) protocol's     category bitmap into the SELinux extensible bitmap via     the' ebitmap_netlbl_import' routine. While processing     the CIPSO restricted bitmap tag in the     'cipso_v4_parsetag_rbm' routine, it sets the security     attribute to indicate that the category bitmap is     present, even if it has not been allocated. This issue     leads to a NULL pointer dereference issue while     importing the same category bitmap into SELinux. This     flaw allows a remote network user to crash the system     kernel, resulting in a denial of     service.(CVE-2020-10711)A flaw was found in the Linux     kernel's SELinux LSM hook implementation, where it     anticipated the skb would only contain a single Netlink     message. The hook incorrectly validated the first     Netlink message in the skb only, to allow or deny the     rest of the messages within the skb with the granted     permissions and without further processing. At this     time, there is no known ability for an attacker to     abuse this flaw.(CVE-2020-10751)A flaw was found in the     Linux Kernel in versions after 4.5-rc1 in the way     mremap handled DAX Huge Pages. This flaw allows a local     attacker with access to a DAX enabled storage to     escalate their privileges on the     system.(CVE-2020-10757)A logic bug flaw was found in     the Linux kernel's implementation of SSBD. A bug in the     logic handling allows an attacker with a local account     to disable SSBD protection during a context switch when     additional speculative execution mitigations are in     place. This issue was introduced when the per     task/process conditional STIPB switching was added on     top of the existing SSBD switching. The highest threat     from this vulnerability is to     confidentiality.(CVE-2020-10766)A flaw was found in the     Linux kernel's implementation of the Enhanced IBPB     (Indirect Branch Prediction Barrier). The IBPB     mitigation will be disabled when STIBP is not available     or when the Enhanced Indirect Branch Restricted     Speculation (IBRS) is available. This flaw allows a     local attacker to perform a Spectre V2 style attack     when this configuration is active. The highest threat     from this vulnerability is to     confidentiality.(CVE-2020-10767)A flaw was found in the     prctl() function, where it can be used to enable     indirect branch speculation after it has been disabled.
    This call incorrectly reports it as being 'force     disabled' when it is not and opens the system to     Spectre v2 attacks. The highest threat from this     vulnerability is to confidentiality.(CVE-2020-10768)A     flaw was found in the ZRAM kernel module, where a user     with a local account and the ability to read the     /sys/class/zram-control/hot_add file can create ZRAM     device nodes in the /dev/ directory. This read     allocates kernel memory and is not accounted for a user     that triggers the creation of that ZRAM device. With     this vulnerability, continually reading the device may     consume a large amount of system memory and cause the     Out-of-Memory (OOM) killer to activate and terminate     random userspace processes, possibly making the system     inoperable.(CVE-2020-10781)A stack buffer overflow     issue was found in the get_raw_socket() routine of the     Host kernel accelerator for virtio net (vhost-net)     driver. It could occur while doing an     ictol(VHOST_NET_SET_BACKEND) call, and retrieving     socket name in a kernel stack variable via     get_raw_socket(). A user able to perform ioctl(2) calls     on the '/dev/vhost-net' device may use this flaw to     crash the kernel resulting in DoS     issue.(CVE-2020-10942)A flaw was found in the Linux     kernel's implementation of the pivot_root syscall. This     flaw allows a local privileged user (root outside or     root inside a privileged container) to exploit a race     condition to manipulate the reference count of the root     filesystem. To be able to abuse this flaw, the process     or user calling pivot_root must have advanced     permissions. The highest threat from this vulnerability     is to system availability.(CVE-2020-12114)A     use-after-free flaw was found in usb_sg_cancel in     drivers/usb/core/message.c in the USB core subsystem.
    This flaw allows a local attacker with a special user     or root privileges to crash the system due to a race     problem in the scatter-gather cancellation and transfer     completion in usb_sg_wait. This vulnerability can also     lead to a leak of internal kernel     information.(CVE-2020-12464)A memory overflow and data     corruption flaw were found in the Mediatek MT76 driver     module for WiFi in mt76_add_fragment in     driverset/wireless/mediatek/mt76/dma.c. An oversized     packet with too many rx fragments causes an overflow     and corruption in memory of adjacent pages. A local     attacker with a special user or root privileges can     cause a denial of service or a leak of internal kernel     information.(CVE-2020-12465)A vulnerability was found     in __mptctl_ioctl in drivers/message/fusion/mptctl.c in     Fusion MPT base driver 'mptctl' in the SCSI device     module, where an incorrect lock leads to a race     problem. This flaw allows an attacker with local access     and special user (or root) privileges to cause a denial     of service.(CVE-2020-12652)A flaw was found in the way     the mwifiex_cmd_append_vsie_tlv() in Linux kernel's     Marvell WiFi-Ex driver handled vendor specific     information elements. A local user could use this flaw     to escalate their privileges on the     system.(CVE-2020-12653)A flaw was found in the Linux     kernel. The Marvell mwifiex driver allows a remote WiFi     access point to trigger a heap-based memory buffer     overflow due to an incorrect memcpy operation. The     highest threat from this vulnerability is to data     integrity and system availability.(CVE-2020-12654)A     flaw was discovered in the XFS source in the Linux     kernel. This flaw allows an attacker with the ability     to mount an XFS filesystem, to trigger a denial of     service while attempting to sync a file located on an     XFS v5 image with crafted metadata.(CVE-2020-12655)An     out-of-bounds (OOB) memory access flaw was found in the     Network XDP (the eXpress Data Path) module in the Linux     kernel's xdp_umem_reg function in net/xdp/xdp_umem.c.
    When a user with special user privilege of     CAP_NET_ADMIN (or root) calls setsockopt to register     umem ring on XDP socket, passing the headroom value     larger than the available space in the chunk, it leads     to an out-of-bounds write, causing panic or possible     memory corruption. This flaw may lead to privilege     escalation if a local end-user is granted permission to     influence the execution of code in this     manner.(CVE-2020-12659)A vulnerability was found in     sg_write in drivers/scsi/sg.c in the SCSI generic (sg)     driver subsystem. This flaw allows an attacker with     local access and special user or root privileges to     cause a denial of service if the allocated list is not     cleaned with an invalid (Sg_fd * sfp) pointer at the     time of failure, also possibly causing a kernel     internal information leak problem.(CVE-2020-12770)An     issue was discovered in the Linux kernel through     5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c     has a deadlock if a coalescing operation     fails.(CVE-2020-12771)A flaw was found in the Linux     kernel loose validation of child/parent process     identification handling while filtering signal     handlers. A local attacker is able to abuse this flaw     to bypass checks to send any signal to a privileged     process.(CVE-2020-12826)A flaw was found in the Linux     kernel, where it allows userspace processes, for     example, a guest VM, to directly access h/w devices via     its VFIO driver modules. The VFIO modules allow users     to enable or disable access to the devices' MMIO memory     address spaces. If a user attempts to access the     read/write devices' MMIO address space when it is     disabled, some h/w devices issue an interrupt to the     CPU to indicate a fatal error condition, crashing the     system. This flaw allows a guest user or process to     crash the host system resulting in a denial of     service.(CVE-2020-12888)gadget_dev_desc_UDC_store in     drivers/usb/gadget/configfs.c in the Linux kernel     through 5.6.13 relies on kstrdup without considering     the possibility of an internal '\0' value, which allows     attackers to trigger an out-of-bounds read, aka     CID-15753588bcd4.(CVE-2020-13143)** DISPUTED ** An     issue was discovered in the Linux kernel through 5.7.1.
    drivers/tty/vt/keyboard.c has an integer overflow if     k_ascii is called several times in a row, aka     CID-b86dab054059. NOTE: Members in the community argue     that the integer overflow does not lead to a security     issue in this case.(CVE-2020-13974)A use-after-free     flaw was found in slcan_write_wakeup in     driverset/can/slcan.c in the serial CAN module slcan. A     race condition occurs when communicating with can using     slcan between the write (scheduling the transmit) and     closing (flushing out any pending queues) the SLCAN     channel. This flaw allows a local attacker with special     user or root privileges to cause a denial of service or     a kernel information leak. The highest threat from this     vulnerability is to system     availability.(CVE-2020-14416)In the Linux kernel     through 5.7.6, usbtest_disconnect in     drivers/usb/misc/usbtest.c has a memory leak, aka     CID-28ebeb8db770.(CVE-2020-15393)The Linux kernel     through 5.7.11 allows remote attackers to make     observations that help to obtain sensitive information     about the internal state of the network RNG, aka     CID-f227e3ec3b5c. This is related to     drivers/char/random.c and     kernel/time/timer.c.(CVE-2020-16166)A flaw was found in     the Linux kernel's implementation of Userspace core     dumps. This flaw allows an attacker with a local     account to crash a trivial program and exfiltrate     private kernel data.(CVE-2020-10732)A flaw null pointer     dereference in the Linux kernel cgroupv2 subsystem in     versions before 5.7.10 was found in the way when reboot     the system. A local user could use this flaw to crash     the system or escalate their privileges on the     system.(CVE-2020-14356)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)get_gate_page in mm/gup.c in     the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows     privilege escalation because of incorrect reference     counting (caused by gate page mishandling) of the     struct page that backs the vsyscall page. The result is     a refcount underflow. This can be triggered by any     64-bit process that can use ptrace() or     process_vm_readv(), aka     CID-9fa2dd946743.(CVE-2020-25221)In the Linux kernel     through 5.8.7, local attackers able to inject conntrack     netlink configuration could overflow a local buffer,     causing crashes or triggering use of incorrect protocol     numbers in ctnetlink_parse_tuple_filter in     net/netfilter/nf_conntrack_netlink.c, aka     CID-1cc5ef91d2ff.(CVE-2020-25211)A buffer over-read     flaw was found in RH kernel versions before 5.0 in     crypto_authenc_extractkeys in crypto/authenc.c in the     IPsec Cryptographic algorithm's module, authenc. When a     payload longer than 4 bytes, and is not following     4-byte alignment boundary guidelines, it causes a     buffer over-read threat, leading to a system crash.
    This flaw allows a local attacker with user privileges     to cause a denial of service.(CVE-2020-10769)A flaw was     found in the Linux kernel's implementation of the     invert video code on VGA consoles when a local attacker     attempts to resize the console, calling an ioctl     VT_RESIZE, which causes an out-of-bounds write to     occur. This flaw allows a local user with access to the     VGA console to crash the system, potentially escalating     their privileges on the system. The highest threat from     this vulnerability is to data confidentiality and     integrity as well as system     availability.(CVE-2020-14331)In cdev_get of char_dev.c,     there is a possible use-after-free due to a race     condition. This could lead to local escalation of     privilege with System execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android-10Android ID:
    A-153467744(CVE-2020-0305)

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.

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

  - The Linux kernel through 5.7.11 allows remote attackers     to make observations that help to obtain sensitive     information about the internal state of the network     RNG, aka CID-f227e3ec3b5c. This is related to     drivers/char/random.c and     kernel/time/timer.c.(CVE-2020-16166)

  - A flaw was found in the Linux kernel's implementation     of the invert video code on VGA consoles when a local     attacker attempts to resize the console, calling an     ioctl VT_RESIZE, which causes an out-of-bounds write to     occur. This flaw allows a local user with access to the     VGA console to crash the system, potentially escalating     their privileges on the system. The highest threat from     this vulnerability is to data confidentiality and     integrity as well as system     availability.(CVE-2020-14331)

  - A buffer over-read flaw was found in RH kernel versions     before 5.0 in crypto_authenc_extractkeys in     crypto/authenc.c in the IPsec Cryptographic algorithm's     module, authenc. When a payload longer than 4 bytes,     and is not following 4-byte alignment boundary     guidelines, it causes a buffer over-read threat,     leading to a system crash. This flaw allows a local     attacker with user privileges to cause a denial of     service.(CVE-2020-10769)

  - An issue was discovered in the Linux kernel through     5.7.1. drivers/tty/vt/keyboard.c has an integer     overflow if k_ascii is called several times in a row,     aka CID-b86dab054059. NOTE: Members in the community     argue that the integer overflow does not lead to a     security issue in this case.(CVE-2020-13974)

  - In the Linux kernel through 5.7.6, usbtest_disconnect     in drivers/usb/misc/usbtest.c has a memory leak, aka     CID-28ebeb8db770.(CVE-2020-15393)

  - The VFIO PCI driver in the Linux kernel through 5.6.13     mishandles attempts to access disabled memory     space.(CVE-2020-12888)

  - go7007_snd_init in     drivers/media/usb/go7007/snd-go7007.c in the Linux     kernel before 5.6 does not call snd_card_free for a     failure path, which causes a memory leak, aka     CID-9453264ef586.(CVE-2019-20810)

  - An issue was discovered in the Linux kernel before     5.0.6. In rx_queue_add_kobject() and     netdev_queue_add_kobject() in net/core/net-sysfs.c, a     reference count is mishandled, aka     CID-a3e23f719f5c.(CVE-2019-20811)

  - An issue was discovered in the Linux kernel before     5.4.7. The prb_calc_retire_blk_tmo() function in     net/packet/af_packet.c can result in a denial of     service (CPU consumption and soft lockup) in a certain     failure case involving TPACKET_V3, aka     CID-b43d1f9f7067.(CVE-2019-20812)

  - A flaw was found in the Linux kernel's implementation     of Userspace core dumps. This flaw allows an attacker     with a local account to crash a trivial program and     exfiltrate private kernel data.(CVE-2020-10732)

  - A flaw was found in the Linux kernels SELinux LSM hook     implementation before version 5.7, where it incorrectly     assumed that an skb would only contain a single netlink     message. The hook would incorrectly only validate the     first netlink message in the skb and allow or deny the     rest of the messages within the skb with the granted     permission without further processing.(CVE-2020-10751)

  - gadget_dev_desc_UDC_store in     drivers/usb/gadget/configfs.c in the Linux kernel     through 5.6.13 relies on kstrdup without considering     the possibility of an internal '\0' value, which allows     attackers to trigger an out-of-bounds read, aka     CID-15753588bcd4.(CVE-2020-13143)

  - A signal access-control issue was discovered in the     Linux kernel before 5.6.5, aka CID-7395ea4e65c2.
    Because exec_id in include/linux/sched.h is only 32     bits, an integer overflow can interfere with a     do_notify_parent protection mechanism. A child process     can send an arbitrary signal to a parent process in a     different security domain. Exploitation limitations     include the amount of elapsed time before an integer     overflow occurs, and the lack of scenarios where     signals to a parent process present a substantial     operational threat.(CVE-2020-12826)

  - The __mptctl_ioctl function in     drivers/message/fusion/mptctl.c in the Linux kernel     before 5.4.14 allows local users to hold an incorrect     lock during the ioctl operation and trigger a race     condition, i.e., a 'double fetch' vulnerability, aka     CID-28d76df18f0a. NOTE: the vendor states 'The security     impact of this bug is not as bad as it could have been     because these operations are all privileged and root     already has enormous destructive     power.'(CVE-2020-12652)

  - An issue was found in Linux kernel before 5.5.4. The     mwifiex_cmd_append_vsie_tlv() function in     drivers/net/wireless/marvell/mwifiex/scan.c allows     local users to gain privileges or cause a denial of     service because of an incorrect memcpy and buffer     overflow, aka CID-b70261a288ea.(CVE-2020-12653)

  - An issue was found in Linux kernel before 5.5.4.
    mwifiex_ret_wmm_get_status() in     drivers/net/wireless/marvell/mwifiex/wmm.c allows a     remote AP to trigger a heap-based buffer overflow     because of an incorrect memcpy, aka     CID-3a9b153c5591.(CVE-2020-12654)

  - An issue was discovered in xfs_agf_verify in     fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through     5.6.10. Attackers may trigger a sync of excessive     duration via an XFS v5 image with crafted metadata, aka     CID-d0c7feaf8767.(CVE-2020-12655)

  - A flaw was found in the Linux kernel's implementation     of GRO in versions before 5.2. This flaw allows an     attacker with local access to crash the     system.(CVE-2020-10720)

  - An issue was discovered in the Linux kernel through     5.6.11. sg_write lacks an sg_remove_request call in a     certain failure case, aka     CID-83c6f2390040.(CVE-2020-12770)

  - In the Linux kernel before 5.4.12,     drivers/input/input.c has out-of-bounds writes via a     crafted keycode table, as demonstrated by     input_set_keycode, aka     CID-cb222aed03d7.(CVE-2019-20636)

  - An issue was discovered in the stv06xx subsystem in the     Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and     drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c     mishandle invalid descriptors, as demonstrated by a     NULL pointer dereference, aka     CID-485b06aadb93.(CVE-2020-11609)

  - In the netlink driver, there is a possible out of     bounds write due to a race condition. This could lead     to local escalation of privilege with System execution     privileges needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-65025077(CVE-2020-0066)

  - In the Linux kernel before 5.5.8, get_raw_socket in     drivers/vhost/net.c lacks validation of an sk_family     field, which might allow attackers to trigger kernel     stack corruption via crafted system     calls.(CVE-2020-10942)

  - An issue was discovered in slc_bump in     drivers/net/can/slcan.c in the Linux kernel through     5.6.2. It allows attackers to read uninitialized     can_frame data, potentially containing sensitive     information from kernel stack memory, if the     configuration lacks CONFIG_INIT_STACK_ALL, aka     CID-b9258a2cece4.(CVE-2020-11494)

  - An issue was discovered in the Linux kernel through     5.6.2. mpol_parse_str in mm/mempolicy.c has a     stack-based out-of-bounds write because an empty     nodelist is mishandled during mount option parsing, aka     CID-aa9f7d5172fa. NOTE: Someone in the security     community disagrees that this is a vulnerability     because the issue 'is a bug in parsing mount options     which can only be specified by a privileged user, so     triggering the bug does not grant any powers not     already held.'.(CVE-2020-11565)

  - An issue was discovered in the Linux kernel before     5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and     ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d.(CVE-2020-11608)

  - The kernel in Red Hat Enterprise Linux 7 and MRG-2 does     not clear garbage data for SG_IO buffer, which may     leaking sensitive information to     userspace.(CVE-2014-8181)

  - In the Linux kernel 5.0.21, mounting a crafted ext4     filesystem image, performing some operations, and     unmounting can lead to a use-after-free in     ext4_put_super in fs/ext4/super.c, related to     dump_orphan_list in fs/ext4/super.c.(CVE-2019-19447)

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.

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

  - Use-after-free vulnerability in fs/block_dev.c in the     Linux kernel before 5.8 allows local users to gain     privileges or cause a denial of service by leveraging     improper access to a certain error     field.(CVE-2020-15436)

  - An out-of-bounds memory write flaw was found in how the     Linux kernel's Voice Over IP H.323 connection tracking     functionality handled connections on ipv6 port 1720.
    This flaw allows an unauthenticated remote user to     crash the system, causing a denial of service. The     highest threat from this vulnerability is to     confidentiality, integrity, as well as system     availability.(CVE-2020-14305)

  - Improper input validation in BlueZ may allow an     unauthenticated user to potentially enable escalation     of privilege via adjacent access.(CVE-2020-12351)

  - In the Linux kernel 4.14 longterm through 4.14.165 and     4.19 longterm through 4.19.96 (and 5.x before 5.2),     there is a use-after-free (write) in the     i915_ppgtt_close function in     drivers/gpu/drm/i915/i915_gem_gtt.c, aka     CID-7dc40713618c. This is related to     i915_gem_context_destroy_ioctl in     drivers/gpu/drm/i915/i915_gem_context.c.(CVE-2020-7053)

  - In kbd_keycode of keyboard.c, there is a possible out     of bounds write due to a missing bounds check. This     could lead to local escalation of privilege with no     additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-144161459(CVE-2020-0431)

  - In various methods of hid-multitouch.c, there is a     possible out of bounds write due to a missing bounds     check. This could lead to local escalation of privilege     with no additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-162844689References: Upstream kernel(CVE-2020-0465)

  - mwifiex_cmd_802_11_ad_hoc_start in     drivers/net/wireless/marvell/mwifiex/join.c in the     Linux kernel through 5.10.4 might allow remote     attackers to execute arbitrary code via a long SSID     value, aka CID-5c455c5ab332.(CVE-2020-36158)

  - A flaw was found in the way RTAS handled memory     accesses in userspace to kernel communication. On a     locked down (usually due to Secure Boot) guest system     running on top of PowerVM or KVM hypervisors (pseries     platform) a root like local user could use this flaw to     further increase their privileges to that of a running     kernel.(CVE-2020-27777)

  - An issue was discovered in romfs_dev_read in     fs/romfs/storage.c in the Linux kernel before 5.8.4.
    Uninitialized memory leaks to userspace, aka     CID-bcf85fcedfdd.(CVE-2020-29371)

  - An issue was discovered in kmem_cache_alloc_bulk in     mm/slub.c in the Linux kernel before 5.5.11. The     slowpath lacks the required TID increment, aka     CID-fd4d9c7d0c71.(CVE-2020-29370)

  - There is a use-after-free vulnerability in the Linux     kernel through 5.5.2 in the n_tty_receive_buf_common     function in drivers/tty/n_tty.c.(CVE-2020-8648)

  - A buffer over-read (at the framebuffer layer) in the     fbcon code in the Linux kernel before 5.8.15 could be     used by local attackers to read kernel memory, aka     CID-6735b4632def.(CVE-2020-28915)

  - In the Linux kernel 5.0.21, mounting a crafted btrfs     filesystem image, performing some operations, and then     making a syncfs system call can lead to a     use-after-free in __mutex_lock in     kernel/locking/mutex.c. This is related to     mutex_can_spin_on_owner in kernel/locking/mutex.c,
    __btrfs_qgroup_free_meta in fs/btrfs/qgroup.c, and     btrfs_insert_delayed_items in     fs/btrfs/delayed-inode.c.(CVE-2019-19813)

  - gss_mech_free in net/sunrpc/auth_gss/gss_mech_switch.c     in the rpcsec_gss_krb5 implementation in the Linux     kernel through 5.6.10 lacks certain domain_release     calls, leading to a memory leak.(CVE-2020-12656)

  - A flaw was found in the Linux kernels implementation of     MIDI, where an attacker with a local account and the     permissions to issue an ioctl commands to midi devices,     could trigger a use-after-free. A write to this     specific memory while freed and before use could cause     the flow of execution to change and possibly allow for     memory corruption or privilege     escalation.(CVE-2020-27786)

  - A flaw memory leak in the Linux kernel performance     monitoring subsystem was found in the way if using     PERF_EVENT_IOC_SET_FILTER. A local user could use this     flaw to starve the resources causing denial of     service.(CVE-2020-25704)

  - A flaw was found in the Linux Kernel before 5.8-rc6 in     the ZRAM kernel module, where a user with a local     account and the ability to read the     /sys/class/zram-control/hot_add file can create ZRAM     device nodes in the /dev/ directory. This read     allocates kernel memory and is not accounted for a user     that triggers the creation of that ZRAM device. With     this vulnerability, continually reading the device may     consume a large amount of system memory and cause the     Out-of-Memory (OOM) killer to activate and terminate     random userspace processes, possibly making the system     inoperable.(CVE-2020-10781)

  - go7007_snd_init in     drivers/media/usb/go7007/snd-go7007.c in the Linux     kernel before 5.6 does not call snd_card_free for a     failure path, which causes a memory leak, aka     CID-9453264ef586.(CVE-2019-20810)

  - 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. 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)

  - 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)

  - A flaw was found in the Linux kernel. A use-after-free     was found in the way the console subsystem was using     ioctls KDGKBSENT and KDSKBSENT. A local user could use     this flaw to get read memory access out of bounds. The     highest threat from this vulnerability is to data     confidentiality.(CVE-2020-25656)

  - The Linux kernel before version 5.8 is vulnerable to a     NULL pointer dereference in     drivers/tty/serial/8250/8250_core.c:serial8250_isa_init
    _ports() that allows local users to cause a denial of     service by using the p->serial_in pointer which     uninitialized.(CVE-2020-15437)

  - An issue was discovered in slc_bump in     drivers/net/can/slcan.c in the Linux kernel through     5.6.2. It allows attackers to read uninitialized     can_frame data, potentially containing sensitive     information from kernel stack memory, if the     configuration lacks CONFIG_INIT_STACK_ALL, aka     CID-b9258a2cece4.(CVE-2020-11494)

  - A stack information leak flaw was found in s390/s390x     in the Linux kernel's memory manager functionality,     where it incorrectly writes to the     /proc/sys/vm/cmm_timeout file. This flaw allows a local     user to see the kernel data.(CVE-2020-10773)

  - ** DISPUTED ** drivers/gpu/drm/radeon/radeon_display.c     in the Linux kernel 5.2.14 does not check the     alloc_workqueue return value, leading to a NULL pointer     dereference. NOTE: A third-party software maintainer     states that the work queue allocation is happening     during device initialization, which for a graphics card     occurs during boot. It is not attacker controllable and     OOM at that time is highly unlikely.(CVE-2019-16230)

  - A flaw was found in the Linux Kernel in versions after     4.5-rc1 in the way mremap handled DAX Huge Pages. This     flaw allows a local attacker with access to a DAX     enabled storage to escalate their privileges on the     system.(CVE-2020-10757)

  - A pivot_root race condition in fs/namespace.c in the     Linux kernel 4.4.x before 4.4.221, 4.9.x before     4.9.221, 4.14.x before 4.14.178, 4.19.x before     4.19.119, and 5.x before 5.3 allows local users to     cause a denial of service (panic) by corrupting a     mountpoint reference counter.(CVE-2020-12114)

  - A slab-out-of-bounds read in fbcon in the Linux kernel     before 5.9.7 could be used by local attackers to read     privileged information or potentially crash the kernel,     aka CID-3c4e0dff2095. This occurs because     KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for     manipulations such as font height.(CVE-2020-28974)

  - Insufficient control flow in certain data structures     for some Intel(R) Processors with Intel(R) Processor     Graphics may allow an unauthenticated user to     potentially enable information disclosure via local     access.(CVE-2019-14615)

  - In the Linux kernel 5.0.21, mounting a crafted btrfs     filesystem image, performing some operations, and     unmounting can lead to a use-after-free in     btrfs_queue_work in     fs/btrfs/async-thread.c.(CVE-2019-19377)

  - In do_epoll_ctl and ep_loop_check_proc of eventpoll.c,     there is a possible use after free due to a logic     error. This could lead to local escalation of privilege     with no additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-147802478References: Upstream kernel(CVE-2020-0466)

  - ** DISPUTED ** fs/nfsd/nfs3xdr.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)

  - A flaw was found in the Linux kernels eBPF     implementation. By default, accessing the eBPF verifier     is only accessible to privileged users with     CAP_SYS_ADMIN. A local user with the ability to insert     eBPF instructions can abuse a flaw in eBPF to corrupt     memory. The highest threat from this vulnerability is     to confidentiality, integrity, as well as system     availability.(CVE-2021-29154)

  - A flaw memory leak in the Linux kernel webcam device     functionality was found in the way user calls ioctl     that triggers video_usercopy function. The highest     threat from this vulnerability is to system     availability.(CVE-2021-30002)

  - 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.(CVE-2021-3483)

  - A flaw in the Linux kernels implementation of the RPA     PCI Hotplug driver for power-pc. A user with     permissions to write to the sysfs settings for this     driver can trigger a buffer overflow when writing a new     device name to the driver from userspace, overwriting     data in the kernel's stack.(CVE-2021-28972)

  - A race condition flaw was found in get_old_root in     fs/btrfs/ctree.c in the Linux kernel in btrfs     file-system. This flaw allows a local attacker with a     special user privilege to cause a denial of service due     to not locking an extent buffer before a cloning     operation. The highest threat from this vulnerability     is to system availability.(CVE-2021-28964)

  - A flaw was found in the Linux kernel. The usbip driver     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. The highest     threat from this vulnerability is to system     availability.(CVE-2021-29265)

  - An out-of-bounds (OOB) memory access flaw was found in     x25_bind in net/x25/af_x25.c in the Linux kernel. 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)

  - There is a flaw reported in     drivers/gpu/drm/nouveau/nouveau_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 JFS filesystem code. This flaw     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)

  - A flaw was found in the Linux kernel. A denial of     service problem is identified if an extent tree is     corrupted in a crafted ext4 filesystem in     fs/ext4/extents.c in ext4_es_cache_extent. Fabricating     an integer overflow, A local attacker with a special     user privilege may cause a system crash problem which     can lead to an availability threat.(CVE-2021-3428)

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
138272	SUSE SLES15セキュリティ更新プログラム：カーネル（SUSE-SU-2020:1663-1）	Nessus	SuSE Local Security Checks	2020/7/9	2024/3/1	critical
139308	SUSE SLED15 / SLES15セキュリティ更新プログラム：カーネル（SUSE-SU-2020:2105-1）	Nessus	SuSE Local Security Checks	2020/8/4	2022/5/12	high
139364	SUSE SLES12セキュリティ更新プログラム：カーネル（SUSE-SU-2020:2134-1）	Nessus	SuSE Local Security Checks	2020/8/6	2021/1/13	high
141789	Slackware 14.2：Slackware 14.2カーネル (SSA:2020-295-01)	Nessus	Slackware Local Security Checks	2020/10/22	2022/5/11	high
140141	EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-1920)	Nessus	Huawei Local Security Checks	2020/9/2	2021/1/6	medium
139027	Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4439-1)	Nessus	Ubuntu Local Security Checks	2020/7/28	2024/8/27	high
139362	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2121-1)	Nessus	SuSE Local Security Checks	2020/8/6	2024/2/26	critical
139137	EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1807)	Nessus	Huawei Local Security Checks	2020/7/30	2024/2/27	high
139408	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2152-1)	Nessus	SuSE Local Security Checks	2020/8/7	2021/1/13	high
140378	SUSE SLES15 Security Update : kernel (SUSE-SU-2020:2487-1)	Nessus	SuSE Local Security Checks	2020/9/8	2022/5/12	high
146282	openSUSE Security Update : RT kernel (openSUSE-2021-242)	Nessus	SuSE Local Security Checks	2021/2/8	2023/2/9	critical
139995	EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1892)	Nessus	Huawei Local Security Checks	2020/8/28	2024/2/22	high
140328	EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1958)	Nessus	Huawei Local Security Checks	2020/9/8	2024/2/21	high
140917	EulerOS 2.0 SP3 : kernel (EulerOS-SA-2020-2150)	Nessus	Huawei Local Security Checks	2020/9/28	2024/2/19	high
151229	EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2021-2040)	Nessus	Huawei Local Security Checks	2021/7/1	2022/5/9	high

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