據發現，Linux 核心中的 KVM 子系統未正確追蹤來賓頁面表格中的巢狀層級。來賓虛擬機器中的本機攻擊者可利用此弱點造成拒絕服務 (主機作業系統當機) 或可能在主機作業系統中執行任意程式碼。(CVE-2017-12188) 據發現，在 PowerPC 架構中，當處理 sigreturn() 時，核心未正確清理訊號堆疊。本機攻擊者可利用此弱點，造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2017-1000255) Bo Zhang 發現 Linux 核心中的 netlink 無線組態介面在處理某些要求時，未正確驗證屬性。具有 CAP_NET_ADMIN 的本機攻擊者可利用此弱點造成拒絕服務 (系統當機)。(CVE-2017-12153) 據發現，在某些情況下，Linux 核心中的巢狀 KVM 實作未正確防止第二層來賓讀取和寫入硬體 CR8 登錄。來賓中的本機攻擊者可利用此弱點造成拒絕服務 (系統當機)。(CVE-2017-12154) Vitaly Mayatskikh 發現 Linux 核心中的 SCSI 子系統在合併緩衝區時，未正確追蹤參照計數。本機攻擊者可利用此弱點造成拒絕服務 (記憶體耗盡)。(CVE-2017-12190) 據發現，Linux 核心中的金鑰管理子系統未正確限制負面具現化金鑰上的金鑰讀取。本機攻擊者可利用此缺陷造成拒絕服務 (系統當機)。(CVE-2017-12192) 據發現，Linux 核心中的 ATI Radeon framebuffer 驅動程式未正確初始化傳回到使用者空間的資料結構。本機攻擊者可利用此弱點洩漏敏感資訊 (核心記憶體)。(CVE-2017-14156) ChunYu Wang 發現 Linux 核心中的 iSCSI 傳輸實作未正確驗證資料結構。本機攻擊者可利用此缺陷造成拒絕服務 (系統當機)。(CVE-2017-14489) Alexander Potapenko 在 Linux 核心的 waitid 實作中發現資訊洩漏。本機攻擊者可利用此弱點洩漏敏感資訊 (核心記憶體)。(CVE-2017-14954) 據發現，Linux 核心的 ALSA 子系統在透過　ioctl()　建立和刪除連接埠時，存在爭用情形。本機攻擊者可利用此弱點，造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2017-15265) Dmitry Vyukov 發現 Linux 核心中的浮點單位 (fpu) 子系統未正確處理在工作的延伸狀態 (xstate) 範圍中設定保留位元的嘗試。本機攻擊者可利用此缺陷造成拒絕服務 (系統當機)。(CVE-2017-15537) 據發現，Linux 核心中的 packet fanout　實作存在爭用情形。本機攻擊者可利用此弱點，造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2017-15649) Andrey Konovalov 在 Linux 核心的 USB 序列主控台驅動程式中發現釋放後使用弱點。實際位置靠近的攻擊者可利用此弱點造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2017-16525) Andrey Konovalov 發現 Linux 核心中的 Ultra Wide Band 驅動程式未正確檢查錯誤狀況。實際位置靠近的攻擊者可利用此弱點造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2017-16526) Andrey Konovalov 發現 Linux 核心中的 ALSA 子系統包含釋放後使用弱點。本機攻擊者可利用此弱點，造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2017-16527) Andrey Konovalov 發現 Linux 核心中的 ALSA 子系統未正確驗證 USB 音訊緩衝區描述元。實際位置靠近的攻擊者可利用此弱點造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2017-16529) Andrey Konovalov 發現 Linux 核心中的 USB 未附加儲存驅動程式在處理其他設定時，發生超出邊界錯誤。實際位置靠近的攻擊者可利用此弱點造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2017-16530) Andrey Konovalov 發現 Linux 核心中的 USB 子系統未正確驗證 USB 介面關聯描述元。實際位置靠近的攻擊者可利用此弱點造成拒絕服務 (系統當機)。(CVE-2017-16531) Andrey Konovalov 發現 Linux 核心中的 USB 子系統未正確驗證 USB HID 描述元。實際位置靠近的攻擊者可利用此弱點造成拒絕服務 (系統當機)。(CVE-2017-16533) Andrey Konovalov 發現 Linux 核心中的 USB 子系統未正確驗證 CDC 中繼資料。實際位置靠近的攻擊者可利用此弱點造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2017-16534)。請注意，Tenable Network Security 已直接從 Ubuntu 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

遠端 Oracle Linux 6/7 主機上安裝的套件受到 ELSA-2017-3651 公告中提及的多個弱點影響。

  在 2.6.38 到 4.14 版的 Linux Kernel 中，THP 實作內 touch_pmd() 函式中的 pmd_mkdirty() 使用情形有問題。get_user_pages() 可存取 touch_pmd()。在這種情況下，pmd 將變為已變更狀態。這種狀況會造成新的 can_follow_write_pmd() 邏輯損毀 - pmd 會在未歷經 COW 週期的情況下變成已變更狀態。此錯誤的嚴重性不及原始的 Dirty cow，因為無法使用 THP 對應 ext4 檔案 (或任何其他一般檔案)。不論如何，我們都可藉此覆寫唯讀巨型頁面。例如，可覆寫歸零巨型頁面和密封 shmem 檔案 (因為可使用 THP 填入其對應)。請注意，首次將頁面錯誤寫入歸零頁面時，系統會用全新 (且已歸零) 的 thp 加以取代。(CVE-2017-1000405)

  在 4.13.8 之前的 Linux 核心中，若 SCSI I/O 向量具有屬於相同頁面的小型連續緩衝區，則 block/bio.c 所用的 bio_map_user_iov 和 bio_unmap_user 函式會為不平衡的頁面進行參照計數。
    bio_add_pc_page 函式會將這些頁面合併為一個頁面，但絕不會移除頁面參照。這樣會造成記憶體洩漏，也可能因記憶體不足而使系統鎖定 (客體 OS 使用者若傳輸 SCSI 磁碟資料至虛擬機器，則主機 OS 容易遭到攻擊)。(CVE-2017-12190)

  在 4.13.6 版之前的 Linux 核心中，「net/packet/af_packet.c」中的 fanout_add() 允許本機使用者透過會觸發 packet_fanout 資料結構不當處理的特製系統呼叫來取得權限，這是因為發生了會導致釋放後使用錯誤的爭用情形 (與 fanout_add 和 packet_do_bind 有關)；此弱點不同於 CVE-2017-6346。(CVE-2017-15649)

  在 Linux 核心 4.13.8 之前版本中，sound/usb/mixer.c 讓本機使用者可以透過特製的 USB 裝置，引致拒絕服務 (snd_usb_mixer_interrupt 釋放後使用和系統當機)，或可能造成其他不明影響。(CVE-2017-16527)

  在 Linux 核心 4.13.11 及之前版本中，drivers/net/usb/qmi_wwan.c 中的 qmi_wwan_bind 函式可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (除以零錯誤和系統當機)，或可能造成其他不明影響。(CVE-2017-16650)

請注意，Nessus 並未測試此問題，而是僅依據應用程式自我報告的版本號碼。

遠端 Ubuntu 14.04 LTS 主機上安裝的一個套件受到 USN-3754-1 公告中所提及的多個弱點影響。

  在 4.9.8 版之前的 Linux 核心中，fs / ext4 / super.c 的 ext4_fill_super 函式未正確驗證中繼區塊群組，進而允許實際位置靠近的攻擊者透過以下方式引致拒絕服務：(超出邊界讀取和系統當機) 特製的 ext4 影像。(CVE-2016-10208)

  - 在 Linux 核心 4.12 之前版本中，drivers/acpi/acpica/nsutils.c 的 acpi_ns_terminate() 函式未排清運算元快取並會造成核心堆疊轉儲存，這讓本機使用者可以透過特製的 ACPI 表格，從核心記憶體取得敏感資訊並繞過 KASLR 保護機制 (在 4.9 及更早版本的核心中)。(CVE-2017-11472)

  在 Linux 核心 3.2 及之前版本的 arch/x86/kernel/acpi/boot.c 中，mp_override_legacy_irq() 函式內的緩衝區溢位可讓本機使用者透過特製的 ACPI 表格取得權限。(CVE-2017-11473)

  - 在 4.13.4 之前的 Linux 核心中，drivers/scsi/sg.c 的 sg_ioctl() 函式可讓本機使用者透過對「/dev/sg0」的 SG_GET_REQUEST_TABLE ioctl 呼叫，從未初始化的核心堆積記憶體位置取得敏感資訊。(CVE-2017-14991)

  在 4.13.6 版之前的 Linux 核心中，「net/packet/af_packet.c」中的 fanout_add() 允許本機使用者透過會觸發 packet_fanout 資料結構不當處理的特製系統呼叫來取得權限，這是因為發生了會導致釋放後使用錯誤的爭用情形 (與 fanout_add 和 packet_do_bind 有關)；此弱點不同於 CVE-2017-6346。(CVE-2017-15649)

  - 在 4.13.6 之前的 Linux 核心中，drivers/uwb/uwbd.c 可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (一般保護錯誤和系統當機)，或可能造成其他不明影響。(CVE-2017-16526)

  在 Linux 核心 4.13.8 之前版本中，sound/usb/mixer.c 讓本機使用者可以透過特製的 USB 裝置，引致拒絕服務 (snd_usb_mixer_interrupt 釋放後使用和系統當機)，或可能造成其他不明影響。(CVE-2017-16527)

  - 在 Linux 核心 4.13.6 之前版本中，sound/usb/card.c 中的 snd_usb_create_streams 函式可讓本機使用者透過特製的 USB 裝置，造成拒絕服務 (超出邊界讀取和系統當機)，或可能造成其他不明影響。(CVE-2017-16529)

  - 在 4.13.6 之前的 Linux 核心中，drivers/usb/core/config.c 可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (超出邊界讀取和系統當機)，或可能造成其他不明影響；這其實與 USB_DT_INTERFACE_ASSOCIATION 描述符號有關。(CVE-2017-16531)

  - 在 Linux 核心 4.13.11 及之前版本中，drivers/usb/misc/usbtest.c 的 get_endpoints 函式可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (NULL 指標解除參照和系統當機)，或可能造成其他不明影響。(CVE-2017-16532)

  - 在 4.13.8 之前的 Linux 核心中，drivers/hid/usbhid/hid-core.c 中的 usbhid_parse 函式可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (超出邊界讀取和系統當機)，或可能造成其他不明影響。(CVE-2017-16533)

  - 在 Linux 核心 4.13.10 之前版本中，drivers/usb/core/config.c 中的 usb_get_bos_descriptor 函式可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (超出邊界讀取和系統當機)，或可能造成其他不明影響。(CVE-2017-16535)

  - 在 Linux 核心 4.13.11 及之前版本中，drivers/media/usb/cx231xx/cx231xx-cards.c 中的 cx231xx_usb_probe 函式可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (NULL 指標解除參照和系統當機)，或可能造成其他不明影響。(CVE-2017-16536)

  - 在 Linux 核心 4.13.11 及之前版本中，drivers/media/rc/imon.c 中的 imon_probe 函式可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (NULL 指標解除參照和系統當機)，或可能造成其他不明影響。(CVE-2017-16537)

  - 在 4.13.11 及之前版本的 Linux 核心中，drivers/media/usb/dvb-usb-v2/lmedm04.c 允許本機使用者透過特製的 USB 裝置，引致拒絕服務 (一般保護錯誤和系統當機) 或可能造成其他不明影響，這其實與遺漏的熱啟動檢查和錯誤的附加定時有關 (dm04_lme2510_frontend_attach 與 dm04_lme2510_tuner)。(CVE-2017-16538)

  - 在 Linux 核心 4.13.11 之前版本中，drivers/input/tablet/gtco.c 中的 parse_hid_report_descriptor 函式可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (超出邊界讀取和系統當機)，或可能造成其他不明影響。(CVE-2017-16643)

  - 在 Linux 核心 4.13.11 及之前版本中，drivers/media/usb/hdpvr/hdpvr-core.c 中的 hdpvr_probe 函式可允許本機使用者透過建構的 USB 裝置造成拒絕服務 (不當錯誤處理和系統當機)，或可能造成其他不明影響。(CVE-2017-16644)

  - 在 Linux 核心 4.13.11 及之前版本中，drivers/input/misc/ims-pcu.c 中的 ims_pcu_get_cdc_union_desc 函式可讓本機使用者透過特製的 USB 裝置，造成拒絕服務 (ims_pcu_parse_cdc_data 超出邊界讀取和系統當機)，或可能造成其他不明影響。(CVE-2017-16645)

  - 在 Linux 核心 4.13.11 及之前版本中，drivers/net/usb/qmi_wwan.c 中的 qmi_wwan_bind 函式可讓本機使用者透過特製的 USB 裝置，引致拒絕服務 (除以零錯誤和系統當機)，或可能造成其他不明影響。(CVE-2017-16650)

  - 在 Linux 核心 4.14.8 之前版本和 4.4.114 版中，vhci_hcd 驅動程式允許本機攻擊者洩漏核心記憶體位址。如要成功利用此弱點，需要透過 IP 附加 USB 裝置。
    (CVE-2017-16911)

  - 在 Linux 核心 4.14.8 之前版本、4.9.71 和 4.4.114 版中，get_pipe() 函式 (drivers/usb/usbip/stub_rx.c) 允許攻擊者透過特製的 USB over IP 封包來造成拒絕服務 (超出邊界讀取)。(CVE-2017-16912)

  - 在 Linux 核心 4.14.8 之前版本、4.9.71 和 4.4.114 版中，stub_recv_cmd_submit() 函式 (drivers/usb/usbip/stub_rx.c) 在處理 CMD_SUBMIT 封包時，允許攻擊者透過特製的 USB over IP 封包來造成拒絕服務 (任意記憶體分配)。(CVE-2017-16913)

  - 在 Linux 核心 4.14.8 之前版本、4.9.71、4.1.49 和 4.4.107 版中，stub_send_ret_submit() 函式 (drivers/usb/usbip/stub_tx.c) 允許攻擊者透過特製的 USB over IP 封包來造成拒絕服務 (NULL 指標解除參照)。(CVE-2017-16914)

  在 4.14.5 Linux 核心中，USB 核心子系統中「drivers/usb/core/config.c」的 usb_destroy_configuration() 函式未先考量組態和介面的最大數，便嘗試釋出資源，這會允許本機使用者透過特製 USB 裝置，引致拒絕服務（超出邊界存取）或可能造成其他不明影響。(CVE-2017-17558)

  - 在 Linux 核心 4.11 之前版本中，kernel/events/core.c 的 perf_cpu_time_max_percent_handler 函式允許本機使用者透過大值造成拒絕服務 (整數溢位)，或可能造成其他不明影響，錯誤的 sample-rate 計算結果即為一例。(CVE-2017-18255)

  - 在 Linux 4.13.5 及之前版本中，本機使用者可透過 keyctl 命令為其他使用者建立 keyring，設定不需要的預設值或造成拒絕服務。(CVE-2017-18270)

  - 在 4.9.5 之前的 Linux 核心中，arch/x86/kvm/emulate.c 的 load_segment_descriptor 實作不會正確模擬 MOV SS, NULL 選取器指令，進而允許來賓 OS 使用者透過特製應用程式引致拒絕服務 (來賓 OS 當機) 或取得來賓 OS 權限。(CVE-2017-2583)

  - 在 4.9.3 及之前版本的 Linux 核心中，arch/x86/kvm/emulate.c 允許本機使用者透過利用 fxrstor、fxsave、sgdt 和 sidt 指令模擬的特製應用程式，來從核心記憶體取得敏感資訊，或造成拒絕服務 (釋放後使用)。(CVE-2017-2584)

  - 在 4.10.8 及之前版本的 Linux 核心中，net/ipv4/ping.c 的 ping_unhash 函式取得特定鎖定為時已晚，因而無法確保中斷連線函式呼叫的安全，進而允許本機使用者利用通訊端系統呼叫中 IPPROTO_ICMP 的通訊協定值存取權，引致拒絕服務 (錯誤)。(CVE-2017-2671)

  - 在 4.9.5 版之前的 Linux 核心中，drivers/usb/serial/kl5kusb105.c 的 klsi_105_get_line_state 函式會在無法讀取行狀態時，將未初始化的堆積記憶體內容放入記錄項目，進而允許本機使用者透過讀取記錄。(CVE-2017-5549)

  在 Linux 核心中，net/ipv6/ip6_gre.c 的 ip6gre_err 函式允許遠端攻擊者透過涉及 IPv6 封包中 GRE 旗標的向量造成不明影響，進而觸發超出邊界存取。(CVE-2017-5897)

  - 在 4.9.13 之前的 Linux 核心中，LLC 子系統並未確保必要情況下存在特定解構函式，進而允許本機使用者透過特製的系統呼叫，引致拒絕服務 (BUG_ON) 或可能造成其他不明影響。(CVE-2017-6345)

  - 在 4.9.13 之前的 Linux 核心中，net/irda/irqueue.c 的 hashbin_delete 函式未正確管理鎖定放置，進而允許本機使用者透過 IrDA 裝置上的特製作業，造成拒絕服務 (鎖死)。(CVE-2017-6348)

  模擬系統呼叫指示時，4.12 之前的 Linux 核心的 KVM 模組在 EFLAGS 中處理陷阱旗標 (TF) 的方式中發現一個缺陷，這導致客體堆疊中發生除錯例外狀況 (#DB)。客體中的使用者/處理程序可利用此缺陷提升其在客體內的權限。Linux 客體不受此弱點影響。(CVE-2017-7518)

  - 在 4.10.11 之前的 Linux 核心中，nfsd 子系統的 NFSv2/NFSv3 伺服器允許遠端攻擊者透過長 RPC 回覆，引致拒絕服務 (系統當機)；此問題與 net/sunrpc/svc.c、fs/nfsd/nfs3xdr.c 和 fs/nfsd/nfsxdr.c 相關。(CVE-2017-7645)

  在 4.11.5 版及之前版本的 Linux 核心中，drivers/media/pci/saa7164/saa7164-bus.c 中的 saa7164_bus_get 函式可讓本機使用者透過變更特定的序號值來造成拒絕服務 (超出邊界陣列存取)，或可能造成其他不明影響，亦即「雙重擷取」弱點。
    (CVE-2017-8831)

  - 在 Linux 核心 4.11.7 及其之前版本中，sound/isa/msnd/msnd_pinnacle.c 中的 snd_msnd_interrupt 函式允許本機使用者透過在核心兩次讀取的訊息佇列 head 指標值之間變更此值，來造成拒絕服務 (越界存取) 或可能造成其他不明影響 ，即「雙重擷取」弱點。(CVE-2017-9984) 

  - 在 Linux 核心 4.11.7 及其之前版本中，sound/isa/msnd/msnd_midi.c 中的 snd_msndmidi_input_read 函式允許本機使用者透過在核心兩次讀取的訊息佇列 head 指標值之間變更此值，來造成拒絕服務 (越界存取) 或可能造成其他不明影響 ，即「雙重擷取」弱點。(CVE-2017-9985) 

  - Linux 核心 3.18 至 4.16 版本不會使用 dxfer_direction=SG_DXFER_FROM_DEV 和空位元 cmdp 正確處理 /dev/sg0 上的 SG_IO ioctl。這可導致最多將 1000 個核心堆積頁面複製到使用者空間。此問題已在 https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 上游修正。此問題的範圍有限，因為使用者通常沒有存取 SCSI 裝置的權限。反之，例如 Nero 使用者手冊建議執行 `chmod o+r+w /dev/sg*`，以使裝置可供存取。注意：第三方對此報告的相關性存有疑慮，指出攻擊者必須具備 CAP_SYS_ADMIN 和 CAP_SYS_RAWIO 功能才能利用此問題，而這基本不可能。(CVE-2018-1000204)

  - 在 4.16 之前的 Linux 核心中，drivers/scsi/libsas/sas_scsi_host.c 允許本機使用者藉由觸發特定失敗情形來導致拒絕服務 (ata qc 洩漏)。注意：第三方對此報告的相關性存有爭議，因為只有在靠近 SAS Host Bus Adapter 纜線的情況下，實際位置靠近的攻擊者才會遭遇失敗。(CVE-2018-10021)

  - 在 4.13 之前的 Linux 核心中，當使用不明架構和編譯器時，kernel/wait.c 中的 kernel_wait4 函式可能會允許本機使用者觸發嘗試使用 -INT_MIN 值，進而引致拒絕服務。(CVE-2018-10087)

  - 在 4.13 之前的 Linux 核心中，當使用不明架構和編譯器時，kernel/wait.c 中的 kernel_wait4 函式可能會允許本機使用者透過使用 -INT_MIN 引數，進而引致拒絕服務。(CVE-2018-10124)

  - 在 Linux 核心 4.16.3 及之前版本中，fs/xfs/libxfs/xfs_bmap.c 的 xfs_bmap_extents_to_btree 函式允許本機使用者透過特製的 xfs 影像，造成拒絕服務 (xfs_bmapi_write NULL 指標解除參照) 。(CVE-2018-10323)

  在 Linux 核心 4.12.9 的 mm/mempolicy.c 中，do_get_mempolicy() 函式可讓本機使用者透過特製的系統呼叫，命中釋放後使用錯誤，因此造成拒絕服務 (DoS) 或者可能造成其他不明影響。(CVE-2018-10675)

  - Linux 核心 ext4 檔案系統在特製的 ext4 檔案系統影像上作業時，容易受到 ext4_ext_drop_refs() 函式中的超出邊界存取影響。(CVE-2018-10877)

  在 Linux 核心的 ext4 檔案系統中發現一個缺陷。本機使用者可藉由掛接特製的 ext4 檔案系統映像並在該系統上操作，造成 ext4_get_group_info 函式中發生超出邊界寫入、拒絕服務和系統當機。(CVE-2018-10881)

  在 4.15.15 及更早版本的 Linux 核心中，fs/ext4/inode.c 的 ext4_iget 函式會以不當方式處理含 zero i_links_count 的 Root 目錄，這允許攻擊者透過特製 ext4 影像引致拒絕服務 (ext4_process_freed_data NULL 指標解除參照和 OOPS)。(CVE-2018-1092)

  - 在 Linux 核心 4.15.15 及之前版本中，fs/ext4/balloc.c 的 ext4_valid_block_bitmap 函式可以讓攻擊者透過特製的 ext4 影像引致拒絕服務 (超出邊界讀取和系統當機)，其原因在於 balloc.c 和 ialloc 不會驗證點陣圖區塊編號。(CVE-2018-1093)

  - 在 4.16.6 之前的 Linux 核心中，drivers/cdrom/cdrom.c 的 cdrom_ioctl_media_changed 函式允許本機攻擊者在 CDROM 驅動程式 CDROM_MEDIA_CHANGED ioctl 中使用錯誤的邊界檢查，藉此讀取核心記憶體。(CVE-2018-10940)

  - 在 Linux 核心 4.17.1 及其之前版本中，在 fs/jfs/xattr.c 的 ea_get 函式中， 如果針對相同檔案呼叫兩次具有兩個不同延伸屬性名稱的 setxattr，即可觸發 JFS 中的記憶體損毀錯誤。能夠建立檔案並執行程式的無權限使用者可觸發此弱點。kmalloc 呼叫不正確，進而導致 jfs_xattr 中發生 slab 超出邊界問題。
    (CVE-2018-12233)

  - 在 Linux 核心 4.17.3 及之前版本的 fs/xfs/libxfs/xfs_attr_leaf.c 中發現一個問題。使用 NULL bp 呼叫 xfs_da_shrink_inode() 之後，損毀的 xfs 影像可能會發生 OOPS。(CVE-2018-13094)

  - 在 Linux 核心 3.16 及之前版本中，fs/inode.c 的 inode_init_owner 函式邏輯中有一個弱點，當目錄是 SGID 且隸屬於特定群組，並可由非此群組成員的使用者寫入時，本機使用者可藉此弱點建立具有非預定群組所有權的檔案。然後，非成員可觸發建立群組擁有權為該群組的純檔案。預定行為是此非成員可觸發建立群組擁有權為該群組的目錄 (而非純檔案)。非成員可藉由將純檔案設為可執行檔和 SGID 來提升權限。(CVE-2018-13405)

  - 在 Linux 核心 4.17.4 之前版本中，drivers/video/fbdev/uvesafb.c 中的 uvesafb_setcmap 函式存在整數溢位弱點，因為未使用 kmalloc_array，這讓本機攻擊者能夠造成核心損毀，或可能提升權限。(CVE-2018-13406)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

遠端 OracleVM 系統缺少可解決重大安全性更新的必要修補程式：

  - x86/entry/64：不要將 IST 項目用於 #BP 堆疊 (Andy Lutomirski) (CVE-2018-8897)

  - perf/hwbp：簡化 perf-hwbp 程式碼，修復文件 (Linus Torvalds) [Orabug：27947608] (CVE-2018-100199)

  - x86/microcode：在微碼更新時探測 CPU 功能 (Ankur Arora) 

  - x86/microcode：microcode_write 不應參照 boot_cpu_data (Ankur Arora) [Orabug：27806667]

  - x86/cpufeatures：使用 init_scattered_cpuid_flags 中的 cpu_data (Ankur Arora) [Orabug：
    27806667]

  - Drivers：hv：fcopy：設定檔案作業用的 .owner 參照 (Joe Jin) [Orabug：21191022]

  - ALSA：usb-audio：結束時終止偏離的 URB (Takashi Iwai) [Orabug：27148281] (CVE-2017-16527)

  - HID：usbhid：修復越界錯誤 (Jaejoong Kim) [Orabug：27207929] (CVE-2017-16533)

  - [media] cx231xx-cards：修復對缺少之關聯描述元的空解除參照 (Johan Hovold) [Orabug：27208072] (CVE-2017-16536)

  - net：cdc_ether：修復錯誤描述元上的除以 0 錯誤 (Bj&oslash rn Mork) [Orabug：27215201] (CVE-2017-16649)

  - x86/微碼/intel：利用修訂檢查擴充 BDW 延遲載入 (Jia Zhang) [Orabug：27343577]

  - x86/微碼/intel：停用型號 79 的延遲載入 (Borislav Petkov) [Orabug：27343577]

  - 藍牙：bnep：bnep_add_connection 應當驗證其正在處理 l2cap 通訊端 (Al Viro) [Orabug：
    27344793] (CVE-2017-15868)

  - 藍牙：hidp：驗證 l2cap 通訊端 (David Herrmann) [Orabug：27344793] (CVE-2017-15868)

  - ALSA：pcm：防止 snd_pcm_info 中出現 UAF (Robb Glasser) [Orabug：27344843] (CVE-2017-0861) (CVE-2017-0861)

  - ptrace：使用 fsuid、fsgid、有效憑據進行 fs 存取檢查 (Jann Horn) [Orabug：27364691] (CVE-2017-14140)

  - sctp：不要將 assoc 從一個 netns 中剝離到另一個 (Xin Long) [Orabug：27387001] (CVE-2017-15115)

  - 還原「x86/spec_ctrl：新增「nolfence」旋鈕以停用 spectre_v2 緩解措施 (Ankur Arora) [Orabug：27601787] (CVE-2017-5715)

  - 還原「x86/spec：在 sysfs 中新增 'lfence_enabled'」(Ankur Arora) [Orabug：27601787] (CVE-2017-5715)

  - 還原「x86/mitigation/spectre_v2：新增 『lfence』報告」(Ankur Arora) [Orabug：27601787] (CVE-2017-5715)

  - x86/mitigation/spectre_v2：新增「lfence」報告 (Konrad Rzeszutek Wilk) (CVE-2017-5715)

  - x86/spec：在 sysfs 中新增「lfence_enabled」(Konrad Rzeszutek Wilk) (CVE-2017-5715)

  - x86/spec_ctrl：新增「nolfence」旋鈕以停用 spectre_v2 緩解措施 (Konrad Rzeszutek Wilk) (CVE-2017-5715)

  - x86/spectre：使 spec_ctrl 管理邏輯更接近 UEK4 (Ankur Arora) [Orabug：27516512] (CVE-2017-5715)

  - x86/cpufeatures：清除與 CPUID 旗標相關的 Spectre v2 (David Woodhouse) [Orabug：27516357] (CVE-2017-5715)

  - x86/spectre_v2：從 spectre_bad_microcodes 中移除 0xc2 (Darren Kenny) [Orabug：27516419] (CVE-2017-5715)

  - x86/cpufeature：早期 Spectre v2 微碼上的封鎖清單 SPEC_CTRL/PRED_CMD (David Woodhouse) [Orabug：
    27516419] (CVE-2017-5715)

  - x86：intel-family.h：新增 GEMINI_LAKE SOC (Len Brown) [Orabug：27516419]

  - x86/cpu/intel：引入 Intel 系列編號的巨集 (Dave Hansen) [Orabug：27516419]

  - x86/spectre：公開「stibp」(Konrad Rzeszutek Wilk) [Orabug：27516419] (CVE-2017-5715)

  - x86/推測：新增基本的 IBPB (間接分支預測屏障) 支援 (David Woodhouse) [Orabug：
    27516379] (CVE-2017-5715)

  - x86/推測：在上下文切換時使用間接分支預測屏障 (Tim Chen) [Orabug：27516379] (CVE-2017-5715)

  - x86/spectre：修復 spectre_v1 緩解指標 (Ankur Arora) [Orabug：27509932] (CVE-2017-5715)

  - x86/ia32/syscall：清除擴充的暫存器 %r8-%r15 (Ankur Arora) [Orabug：27452028] (CVE-2017-5715)

  - x86/ia32/syscall：在整個登入碼中儲存完整的堆疊框架 (Ankur Arora) [Orabug：27452028] (CVE-2017-5715)

  - x86/ia32/syscall：清除結尾空格 (Ankur Arora) [Orabug：27452028] (CVE-2017-5715)

  - x86/syscall：清除呼叫者儲存的暫存器 (%r12-%r15, %rbp, %rbx) (Ankur Arora) [Orabug：27452028] (CVE-2017-5715)

  - x86/syscall：將呼叫者儲存的暫存器儲存在系統呼叫入口 (Ankur Arora) [Orabug：27452028] (CVE-2017-5715)

  - gre：修復可能的 skb 洩漏 (Eric Dumazet) [Orabug：
    26403972] (CVE-2017-9074)

  - ipv6：修復 ipv6_gso_segment 中的洩漏。(David S. Miller) [Orabug：26403972] (CVE-2017-9074)

  - ipv6：xfrm：處理由 xfrm6_find_1stfragopt 報告的錯誤 (Ben Hutchings) [Orabug：26403972] (CVE-2017-9074)

  - ipv6：正確檢查 ip6_find_1stfragopt 返回值。
    (David S. Miller) [Orabug：26403972] (CVE-2017-9074)

  - ipv6：剖析 v6 標頭選項時防止溢位 (Craig Gallek) [Orabug：26403972] (CVE-2017-9074)

  - tcp：將 rcv_mss 初始化為 TCP_MIN_MSS 而不是 0 (Wei Wang) [Orabug：26813390] (CVE-2017-14106)

  - rxrpc：修復幾種在票證解碼中未檢查填充 len 的情況 (David Howells) [Orabug：
    26880517] (CVE-2017-7482) (CVE-2017-7482)

  - xen/mmu：呼叫具有 4MB (用於頁面表格映射) 的 xen_cleanhighmap (Zhenzhong Duan) [Orabug：26883322]

  - KVM：x86：修復 clock-in-progress 要求處理中的鎖死問題 (Marcelo Tosatti) [Orabug：27065995]

  - ocfs2：fstrim：修復 fstrim 期間首個叢集群組的起始位移 (Ashish Samant) [Orabug：27099835]

  - USB：serial：console：設定失敗之後，修復釋放後使用 (Johan Hovold) [Orabug：27206837] (CVE-2017-16525)

  - uwb：正確檢查 kthread_run 傳回值 (Andrey Konovalov) [Orabug：27206897] (CVE-2017-16526)

  - ALSA：usb-audio：檢查由損毀的緩衝區描述元進行的越界存取 (Takashi Iwai) [Orabug：27206928] (CVE-2017-16529)

  - USB：修復 usb_set_configuration 中的越界 (Greg Kroah-Hartman) [Orabug：27207240] (CVE-2017-16531)

  - USB：core：修復 usb_get_bos_descriptor 中的越界訪問錯誤 (Alan Stern) [Orabug：27207983] (CVE-2017-16535)

  - dccp：CVE-2017-8824：DCCP 程式碼中存在釋放後使用 (Mohamed Ghannam) [Orabug：27290301] (CVE-2017-8824)

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

CVE-2016-10208

Sergej Schumilo and Ralf Spenneberg discovered that a crafted ext4 filesystem could trigger memory corruption when it is mounted. A user that can provide a device or filesystem image to be mounted could use this for denial of service (crash or data corruption) or possibly for privilege escalation.

CVE-2017-8824

Mohamed Ghannam discovered that the DCCP implementation did not correctly manage resources when a socket is disconnected and reconnected, potentially leading to a use-after-free. A local user could use this for denial of service (crash or data corruption) or possibly for privilege escalation. On systems that do not already have the dccp module loaded, this can be mitigated by disabling it: echo >> /etc/modprobe.d/disable-dccp.conf install dccp false

CVE-2017-8831

Pengfei Wang discovered that the saa7164 video capture driver re-reads data from a PCI device after validating it. A physically present user able to attach a specially designed PCI device could use this for privilege escalation.

CVE-2017-12190

Vitaly Mayatskikh discovered that the block layer did not correctly count page references for raw I/O from user-space. This can be exploited by a guest VM with access to a host SCSI device for denial of service (memory exhaustion) or potentially for privilege escalation.

CVE-2017-13080

A vulnerability was found in the WPA2 protocol that could lead to reinstallation of the same Group Temporal Key (GTK), which substantially reduces the security of wifi encryption. This is one of the issues collectively known as 'KRACK'.

Updates to GTKs are usually handled by the wpa package, where this issue was already fixed (DLA-1150-1). However, some wifi devices can remain active and update GTKs autonomously while the system is suspended. The kernel must also check for and ignore key reinstallation.

CVE-2017-14051

'shqking' reported that the qla2xxx SCSI host driver did not correctly validate I/O to the 'optrom' sysfs attribute of the devices it creates. This is unlikely to have any security impact.

CVE-2017-15115

Vladis Dronov reported that the SCTP implementation did not correctly handle 'peel-off' of an association to another net namespace. This leads to a use-after-free, which a local user can exploit for denial of service (crash or data corruption) or possibly for privilege escalation. On systems that do not already have the sctp module loaded, this can be mitigated by disabling it: echo >> /etc/modprobe.d/disable-sctp.conf install sctp false

CVE-2017-15265

Michael23 Yu reported a race condition in the ALSA sequencer subsystem involving creation and deletion of ports, which could lead to a use-after-free. A local user with access to an ALSA sequencer device can use this for denial of service (crash or data loss) or possibly for privilege escalation.

CVE-2017-15299

Eric Biggers discovered that the KEYS subsystem did not correctly handle update of an uninstantiated key, leading to a null dereference.
A local user can use this for denial of service (crash).

CVE-2017-15649

'nixioaming' reported a race condition in the packet socket (AF_PACKET) implementation involving rebinding to a fanout group, which could lead to a use-after-free. A local user with the CAP_NET_RAW capability can use this for denial of service (crash or data corruption) or possibly for privilege escalation.

CVE-2017-15868

Al Viro found that the Bluebooth Network Encapsulation Protocol (BNEP) implementation did not validate the type of the second socket passed to the BNEPCONNADD ioctl(), which could lead to memory corruption. A local user with the CAP_NET_ADMIN capability can use this for denial of service (crash or data corruption) or possibly for privilege escalation.

CVE-2017-16525

Andrey Konovalov reported that the USB serial console implementation did not correctly handle disconnection of unusual serial devices, leading to a use-after-free. A similar issue was found in the case where setup of a serial console fails. A physically present user with a specially designed USB device can use this to cause a denial of service (crash or data corruption) or possibly for privilege escalation.

CVE-2017-16527

Andrey Konovalov reported that the USB sound mixer driver did not correctly cancel I/O in case it failed to probe a device, which could lead to a use-after-free. A physically present user with a specially designed USB device can use this to cause a denial of service (crash or data corruption) or possibly for privilege escalation.

CVE-2017-16529

Andrey Konovalov reported that the USB sound driver did not fully validate descriptor lengths, which could lead to a buffer over-read. A physically present user with a specially designed USB device may be able to use this to cause a denial of service (crash).

CVE-2017-16531

Andrey Konovalov reported that the USB core did not validate IAD lengths, which could lead to a buffer over-read. A physically present user with a specially designed USB device may be able to use this to cause a denial of service (crash).

CVE-2017-16532

Andrey Konovalov reported that the USB test driver did not correctly handle devices with specific combinations of endpoints. A physically present user with a specially designed USB device can use this to cause a denial of service (crash).

CVE-2017-16533

Andrey Konovalov reported that the USB HID driver did not fully validate descriptor lengths, which could lead to a buffer over-read. A physically present user with a specially designed USB device may be able to use this to cause a denial of service (crash).

CVE-2017-16535

Andrey Konovalov reported that the USB core did not validate BOS descriptor lengths, which could lead to a buffer over-read. A physically present user with a specially designed USB device may be able to use this to cause a denial of service (crash).

CVE-2017-16536

Andrey Konovalov reported that the cx231xx video capture driver did not fully validate the device endpoint configuration, which could lead to a null dereference. A physically present user with a specially designed USB device can use this to cause a denial of service (crash).

CVE-2017-16537

Andrey Konovalov reported that the imon RC driver did not fully validate the device interface configuration, which could lead to a null dereference. A physically present user with a specially designed USB device can use this to cause a denial of service (crash).

CVE-2017-16643

Andrey Konovalov reported that the gtco tablet driver did not fully validate descriptor lengths, which could lead to a buffer over-read. A physically present user with a specially designed USB device may be able to use this to cause a denial of service (crash).

CVE-2017-16649

Bj&oslash;rn Mork found that the cdc_ether network driver did not validate the device's maximum segment size, potentially leading to a division by zero. A physically present user with a specially designed USB device can use this to cause a denial of service (crash).

CVE-2017-16939

Mohamed Ghannam reported (through Beyond Security's SecuriTeam Secure Disclosure program) that the IPsec (xfrm) implementation did not correctly handle some failure cases when dumping policy information through netlink. A local user with the CAP_NET_ADMIN capability can use this for denial of service (crash or data corruption) or possibly for privilege escalation.

CVE-2017-1000407

Andrew Honig reported that the KVM implementation for Intel processors allowed direct access to host I/O port 0x80, which is not generally safe. On some systems this allows a guest VM to cause a denial of service (crash) of the host.

For Debian 7 'Wheezy', these problems have been fixed in version 3.2.96-2. This version also includes bug fixes from upstream versions up to and including 3.2.96. It also fixes some regressions caused by the fix for CVE-2017-1000364, which was included in DLA-993-1.

We recommend that you upgrade your linux packages.

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

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3485-1 advisory.

    It was discovered that a race condition existed in the ALSA subsystem of the Linux kernel when creating     and deleting a port via ioctl(). A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2017-15265)

    Eric Biggers discovered that the key management subsystem in the Linux kernel did not properly restrict     adding a key that already exists but is uninstantiated. A local attacker could use this to cause a denial     of service (system crash) or possibly execute arbitrary code. (CVE-2017-15299)

    It was discovered that a race condition existed in the packet fanout implementation in the Linux kernel. A     local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2017-15649)

    Eric Biggers discovered a race condition in the key management subsystem of the Linux kernel around keys     in a negative state. A local attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2017-15951)

    Andrey Konovalov discovered a use-after-free vulnerability in the USB serial console driver in the Linux     kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2017-16525)

    Andrey Konovalov discovered that the Ultra Wide Band driver in the Linux kernel did not properly check for     an error condition. A physically proximate attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2017-16526)

    Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel contained a use-after-free     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2017-16527)

    Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel did not properly validate USB     audio buffer descriptors. A physically proximate attacker could use this cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2017-16529)

    Andrey Konovalov discovered that the USB unattached storage driver in the Linux kernel contained out-of-     bounds error when handling alternative settings. A physically proximate attacker could use to cause a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16530)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB     interface association descriptors. A physically proximate attacker could use this to cause a denial of     service (system crash). (CVE-2017-16531)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB HID     descriptors. A physically proximate attacker could use this to cause a denial of service (system crash).
    (CVE-2017-16533)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate CDC     metadata. A physically proximate attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2017-16534)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB BOS     metadata. A physically proximate attacker could use this to cause a denial of service (system crash).
    (CVE-2017-16535)

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 remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3485-2 advisory.

    USN-3485-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the     corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu     14.04 LTS.

    It was discovered that a race condition existed in the ALSA subsystem of the Linux kernel when creating     and deleting a port via ioctl(). A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2017-15265)

    Eric Biggers discovered that the key management subsystem in the Linux kernel did not properly restrict     adding a key that already exists but is uninstantiated. A local attacker could use this to cause a denial     of service (system crash) or possibly execute arbitrary code. (CVE-2017-15299)

    It was discovered that a race condition existed in the packet fanout implementation in the Linux kernel. A     local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2017-15649)

    Eric Biggers discovered a race condition in the key management subsystem of the Linux kernel around keys     in a negative state. A local attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2017-15951)

    Andrey Konovalov discovered a use-after-free vulnerability in the USB serial console driver in the Linux     kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2017-16525)

    Andrey Konovalov discovered that the Ultra Wide Band driver in the Linux kernel did not properly check for     an error condition. A physically proximate attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2017-16526)

    Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel contained a use-after-free     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2017-16527)

    Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel did not properly validate USB     audio buffer descriptors. A physically proximate attacker could use this cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2017-16529)

    Andrey Konovalov discovered that the USB unattached storage driver in the Linux kernel contained out-of-     bounds error when handling alternative settings. A physically proximate attacker could use to cause a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16530)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB     interface association descriptors. A physically proximate attacker could use this to cause a denial of     service (system crash). (CVE-2017-16531)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB HID     descriptors. A physically proximate attacker could use this to cause a denial of service (system crash).
    (CVE-2017-16533)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate CDC     metadata. A physically proximate attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2017-16534)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB BOS     metadata. A physically proximate attacker could use this to cause a denial of service (system crash).
    (CVE-2017-16535)

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.

It was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS.
(CVE-2017-12188)

It was discovered that on the PowerPC architecture, the kernel did not properly sanitize the signal stack when handling sigreturn(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-1000255)

Bo Zhang discovered that the netlink wireless configuration interface in the Linux kernel did not properly validate attributes when handling certain requests. A local attacker with the CAP_NET_ADMIN could use this to cause a denial of service (system crash). (CVE-2017-12153)

It was discovered that the nested KVM implementation in the Linux kernel in some situations did not properly prevent second level guests from reading and writing the hardware CR8 register. A local attacker in a guest could use this to cause a denial of service (system crash).
(CVE-2017-12154)

Vitaly Mayatskikh discovered that the SCSI subsystem in the Linux kernel did not properly track reference counts when merging buffers. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2017-12190)

It was discovered that the key management subsystem in the Linux kernel did not properly restrict key reads on negatively instantiated keys. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-12192)

It was discovered that the ATI Radeon framebuffer driver in the Linux kernel did not properly initialize a data structure returned to user space. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-14156)

ChunYu Wang discovered that the iSCSI transport implementation in the Linux kernel did not properly validate data structures. A local attacker could use this to cause a denial of service (system crash).
(CVE-2017-14489)

Alexander Potapenko discovered an information leak in the waitid implementation of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-14954)

It was discovered that a race condition existed in the ALSA subsystem of the Linux kernel when creating and deleting a port via ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-15265)

Dmitry Vyukov discovered that the Floating Point Unit (fpu) subsystem in the Linux kernel did not properly handle attempts to set reserved bits in a task's extended state (xstate) area. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-15537)

It was discovered that a race condition existed in the packet fanout implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-15649)

Andrey Konovalov discovered a use-after-free vulnerability in the USB serial console driver in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16525)

Andrey Konovalov discovered that the Ultra Wide Band driver in the Linux kernel did not properly check for an error condition. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2017-16526)

Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16527)

Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel did not properly validate USB audio buffer descriptors. A physically proximate attacker could use this cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16529)

Andrey Konovalov discovered that the USB unattached storage driver in the Linux kernel contained out-of-bounds error when handling alternative settings. A physically proximate attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16530)

Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB interface association descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16531)

Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB HID descriptors. A physically proximate attacker could use this to cause a denial of service (system crash).
(CVE-2017-16533)

Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate CDC metadata. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16534).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu 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 ipx_recvmsg function in net/ipx/af_ipx.c in the     Linux kernel before 3.12.4 updates a certain length     value without ensuring that an associated data     structure has been initialized, which allows local     users to obtain sensitive information from kernel     memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg     system call.(CVE-2013-7268i1/4%0

  - The move_pages system call in mm/migrate.c in the Linux     kernel doesn't check the effective uid of the target     process. This enables a local attacker to learn the     memory layout of a setuid executable allowing     mitigation of ASLR.(CVE-2017-14140i1/4%0

  - Multiple array index errors in drivers/hid/hid-core.c     in the Human Interface Device (HID) subsystem in the     Linux kernel through 3.11 allow physically proximate     attackers to execute arbitrary code or cause a denial     of service (heap memory corruption) via a crafted     device that provides an invalid Report     ID.(CVE-2013-2888i1/4%0

  - It was found that if a Non-Maskable Interrupt (NMI)     occurred immediately after a SYSCALL call or before a     SYSRET call with the user RSP pointing to the NMI IST     stack, the kernel could skip that NMI.(CVE-2015-3291i1/4%0

  - The sound/core/seq_device.c in the Linux kernel, before     4.13.4, allows local users to cause a denial of service     (snd_rawmidi_dev_seq_free use-after-free and system     crash) or possibly have unspecified other impact via a     crafted USB device.(CVE-2017-16528i1/4%0

  - net/ceph/auth_x.c in Ceph, as used in the Linux kernel     before 3.16.3, does not properly consider the     possibility of kmalloc failure, which allows remote     attackers to cause a denial of service (system crash)     or possibly have unspecified other impact via a long     unencrypted auth ticket.(CVE-2014-6417i1/4%0

  - A NULL pointer dereference flaw was found in the Linux     kernel: the NFSv4.2 migration code improperly     initialized the kernel structure. A local,     authenticated user could use this flaw to cause a panic     of the NFS client (denial of service).(CVE-2015-8746i1/4%0

  - A stack-based buffer overflow flaw was found in the     TechnoTrend/Hauppauge DEC USB device driver. A local     user with write access to the corresponding device     could use this flaw to crash the kernel or,     potentially, elevate their privileges on the     system.(CVE-2014-8884i1/4%0

  - A flaw was found in the linux kernel's implementation     of the airspy USB device driver in which a leak was     found when a subdev or SDR are plugged into the host.An     attacker can create an targeted USB device which can     emulate 64 of these devices. Then by emulating an     additional device which continuously connects and     disconnects, each connection attempt will leak memory     which can not be recovered.(CVE-2016-5400i1/4%0

  - The sound/usb/mixer.c in the Linux kernel, before     4.13.8, allows local users to cause a denial of service     (snd_usb_mixer_interrupt use-after-free and system     crash) or possibly have unspecified other impact via a     crafted USB device.(CVE-2017-16527i1/4%0

  - The Human Interface Device (HID) subsystem in the Linux     kernel through 3.11, when CONFIG_LOGITECH_FF,     CONFIG_LOGIG940_FF, or CONFIG_LOGIWHEELS_FF is enabled,     allows physically proximate attackers to cause a denial     of service (heap-based out-of-bounds write) via a     crafted device, related to (1) drivers/hid/hid-lgff.c,     (2) drivers/hid/hid-lg3ff.c, and (3)     drivers/hid/hid-lg4ff.c.(CVE-2013-2893i1/4%0

  - It was found that reporting emulation failures to user     space could lead to either a local (CVE-2014-7842) or a     L2-i1/4zL1 (CVE-2010-5313) denial of service. In the case     of a local denial of service, an attacker must have     access to the MMIO area or be able to access an I/O     port. Please note that on certain systems, HPET is     mapped to userspace as part of vdso (vvar) and thus an     unprivileged user may generate MMIO transactions (and     enter the emulator) this way.(CVE-2014-7842i1/4%0

  - A flaw was discovered in the way the Linux kernel's TTY     subsystem handled the tty shutdown phase. A local,     unprivileged user could use this flaw to cause denial     of service on the system by holding a reference to the     ldisc lock during tty shutdown, causing a     deadlock.(CVE-2015-4170i1/4%0

  - The __ip6_append_data function in net/ipv6/ip6_output.c     in the Linux kernel through 4.11.3 is too late in     checking whether an overwrite of an skb data structure     may occur, which allows local users to cause a denial     of service (system crash) via crafted system     calls.(CVE-2017-9242i1/4%0

  - The Linux kernel built with the KVM visualization     support (CONFIG_KVM), with nested visualization(nVMX)     feature enabled (nested=1), was vulnerable to a stack     buffer overflow issue. The vulnerability could occur     while traversing guest page table entries to resolve     guest virtual address(gva). An L1 guest could use this     flaw to crash the host kernel resulting in denial of     service (DoS) or potentially execute arbitrary code on     the host to gain privileges on the     system.(CVE-2017-12188i1/4%0

  - The recalculate_apic_map function in     arch/x86/kvm/lapic.c in the KVM subsystem in the Linux     kernel through 3.12.5 allows guest OS users to cause a     denial of service (host OS crash) via a crafted ICR     write operation in x2apic mode.(CVE-2013-6376i1/4%0

  - The wanxl_ioctl function in drivers/net/wan/wanxl.c in     the Linux kernel before 3.11.7 does not properly     initialize a certain data structure, which allows local     users to obtain sensitive information from kernel     memory via an ioctl call.(CVE-2014-1445i1/4%0

  - The restore_fpu_checking function in     arch/x86/include/asm/fpu-internal.h in the Linux kernel     before 3.12.8 on the AMD K7 and K8 platforms does not     clear pending exceptions before proceeding to an EMMS     instruction, which allows local users to cause a denial     of service (task kill) or possibly gain privileges via     a crafted application.(CVE-2014-1438i1/4%0

  - A race condition was found in the way the Linux     kernel's memory subsystem handled the copy-on-write     (COW) breakage of private read-only memory mappings. An     unprivileged, local user could use this flaw to gain     write access to otherwise read-only memory mappings and     thus increase their privileges on the     system.(CVE-2016-5195i1/4%0

  - Algorithms not compatible with mcryptd could be spawned     by mcryptd with a direct crypto_alloc_tfm invocation     using a 'mcryptd(alg)' name construct. This causes     mcryptd to crash the kernel if an arbitrary 'alg' is     incompatible and not intended to be used with     mcryptd.(CVE-2016-10147i1/4%0

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
104737	Ubuntu 17.10 : linux、linux-raspi2 弱點 (USN-3487-1)	Nessus	Ubuntu Local Security Checks	2017/11/22	2023/1/12	high
105143	Oracle Linux 6 / 7：Unbreakable Enterprise 核心 (ELSA-2017-3651)	Nessus	Oracle Linux Local Security Checks	2017/12/11	2024/10/23	high
112113	Ubuntu 14.04 LTS：Linux 核心弱點 (USN-3754-1)	Nessus	Ubuntu Local Security Checks	2018/8/24	2024/8/27	critical
109668	OracleVM 3.3：Unbreakable /等 (OVMSA-2018-0041) (Spectre)	Nessus	OracleVM Local Security Checks	2018/5/10	2024/10/10	high
105116	Debian DLA-1200-1 : linux security update (KRACK)	Nessus	Debian Local Security Checks	2017/12/11	2021/1/11	high
104716	Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3485-1)	Nessus	Ubuntu Local Security Checks	2017/11/21	2024/8/27	high
104717	Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3485-2)	Nessus	Ubuntu Local Security Checks	2017/11/21	2024/8/27	high
104737	Ubuntu 17.10 : linux, linux-raspi2 vulnerabilities (USN-3487-1)	Nessus	Ubuntu Local Security Checks	2017/11/22	2023/1/12	high
124982	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1529)	Nessus	Huawei Local Security Checks	2019/5/14	2022/5/20	high

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