Amazon Linux 2023:qemu、qemu-common、qemu-guest-agent (ALAS2023-2026-3241)

high Nessus Plugin ID 371849

概要

遠端 Amazon Linux 2023 主機缺少一個安全性更新。

說明

因此,它會受到 ALAS2023-2026-3241 公告中所提及的多個弱點影響。

hw/usb/hcd-xhci:在計時器函式中設定重入保護 (CVE-2026-17588)

注意: 修復者: https://gitlab.com/qemu-project/qemu/-/commit/1f24066fc88d33455ee54a20f29994d9e69997ba(v11.1.0-rc3)NOTE: 修復者: https://gitlab.com/qemu-project/qemu/-/commit/5fbd2fe1cc54259d045d00d4966aa2db1ba990d6 (v11.0.4) (CVE-2026-18054)

注意: https://gitlab.com/qemu-project/qemu/-/work_items/3917NOTE: 修正者: https://gitlab.com/qemu-project/qemu/-/commit/0be94d8d9c28e6b7235b34133d057090fe93be6c (v11.1.0-rc2)注意: 修正者:
https://gitlab.com/qemu-project/qemu/-/commit/88a0e5e45b41d407cf9adf1f2cf6f20f394a578d (v11.0.4) (CVE-2026-50624)

注意: 修復者: https://gitlab.com/qemu-project/qemu/-/commit/733a98a552e4bd68932de1f58bd6ea39b57b261c(v11.1.0-rc2)NOTE: 修復者: https://gitlab.com/qemu-project/qemu/-/commit/6680c5612401c1eaa49eba134d14d374fefeb9d4 (v11.0.4) (CVE-2026-61402)

注意: https://gitlab.com/qemu-project/qemu/-/work_items/3875NOTE: 修正者: https://gitlab.com/qemu-project/qemu/-/commit/f404bf0e6504e0412a00ea64708f17d2a5e3f869 (v11.1.0-rc2)注意: 修正者:
https://gitlab.com/qemu-project/qemu/-/commit/a4abe1f1fa6f465b64fb400bea14c72bd5e32ac9 (v11.0.4) (CVE-2026-61476)

注意: 修復者: https://gitlab.com/qemu-project/qemu/-/commit/b9d248dfaca5e31377ea4f7204aae788a050bafd(v11.1.0-rc2)NOTE: 修復者: https://gitlab.com/qemu-project/qemu/-/commit/82520d7759557062a5fae2211e3c79bbd5f01ed3 (v11.0.4) (CVE-2026-63110)

主機端 AddressSanitizer heap-buffer-overflow READ 透過 q35 上的 virtio-net-pci 接收篩選路徑。當機發生在 receive_filter() 中。(CVE-2026-63320)

注意: 修正者: https://gitlab.com/qemu-project/qemu/-/commit/a6e0519ea8ed6fc84fab9bf9ca82c7a55780f880(v11.1.0-rc2)NOTE: 修正者: https://gitlab.com/qemu-project/qemu/-/commit/52c7bb369b23dfcafb6e6d90665c777797b55e88 (v11.1.0-rc2)注意: 修正者:
https://gitlab.com/qemu-project/qemu/-/commit/f348425fddae38e0c1d6823501890acfb2a3bfb1 (v11.0.4)注意:
修正者: https://gitlab.com/qemu-project/qemu/-/commit/9a06bb17256c0a38f0b53025bf804d2e2035f93f (v11.0.4) (CVE-2026-63321)

注意: https://gitlab.com/qemu-project/qemu/-/work_items/3607NOTE: 修正者: https://gitlab.com/qemu-project/qemu/-/commit/4727cc883b7e81d2c30b9801af54482d65b84292 (v11.1.0-rc2)注意: 修正者:
https://gitlab.com/qemu-project/qemu/-/commit/95b9a1bf26fef7c44f4925f78ade7fa824ed5e76 (v11.0.4) (CVE-2026-63322)

virtio-balloon:修正 unrealize (CVE-2026-66899) 上的空閒頁面 BH 拆解

hw/net/virtio-net:快取 RSC 區段 (CVE-2026-66900) 時剝離尾隨填充

hw/display/vga:修正圖形表面切換 (CVE-2026-77913) 後的文字模式 OOB 寫入

在 QEMU 中發現了一個缺陷。hw/i386/vapic.c 中的 VAPIC 設定超級呼叫不會驗證可寫入 RAM 別名是否保留在選項 ROM 視窗內。/KVM 電腦上的 Q35特權訪客使用者可以將此別名放在鎖定的 SMRAM 上,繞過晶片組D_LCK保護,並將程式碼插入系統管理模式記憶體。(CVE-2026-81627)

io/channel-socket:不要將零長度寫入視為錯誤 (CVE-2026-84788)

在 QEMU 的 9pfs 子系統中發現一個釋放後使用弱點。處理並行 Tlcreate 和 Twalk 要求時,主執行緒和背景工作執行緒之間的爭用情形允許惡意客體使用者製作包含過時堆積資料的 FID 路徑,繞過目錄遊走限制並逸出共用目錄邊界。這可能會導致任意主機檔案讀取/寫入,以及以 QEMU 處理程序使用者身分執行程式碼 (VM 逸出)。(CVE-2026-93834)

Tenable 已直接從所測試產品的安全公告擷取前置描述區塊。

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。

解決方案

執行「dnf update qemu --releasever 2023.12.20261026」或「dnf update --advisory ALAS2023-2026-3241 --releasever 2023.12.20261026」以更新您的系統。

另請參閱

https://alas.aws.amazon.com//AL2023/ALAS2023-2026-3241.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2026-17588.html

https://explore.alas.aws.amazon.com/CVE-2026-18054.html

https://explore.alas.aws.amazon.com/CVE-2026-50624.html

https://explore.alas.aws.amazon.com/CVE-2026-61402.html

https://explore.alas.aws.amazon.com/CVE-2026-61476.html

https://explore.alas.aws.amazon.com/CVE-2026-63110.html

https://explore.alas.aws.amazon.com/CVE-2026-63320.html

https://explore.alas.aws.amazon.com/CVE-2026-63321.html

https://explore.alas.aws.amazon.com/CVE-2026-63322.html

https://explore.alas.aws.amazon.com/CVE-2026-66899.html

https://explore.alas.aws.amazon.com/CVE-2026-66900.html

https://explore.alas.aws.amazon.com/CVE-2026-77913.html

https://explore.alas.aws.amazon.com/CVE-2026-81627.html

https://explore.alas.aws.amazon.com/CVE-2026-84788.html

https://explore.alas.aws.amazon.com/CVE-2026-93834.html

Plugin 詳細資訊

嚴重性: High

ID: 371849

檔案名稱: al2023_ALAS2023-2026-3241.nasl

版本: 1.1

類型: Local

代理程式: unix

已發布: 2026/10/25

已更新: 2026/10/25

支援的感應器: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

風險資訊

VPR

風險因素: Medium

分數: 5

百分位數: 92.98

CVSS v2

風險因素: Medium

基本分數: 6.8

時間性分數: 5

媒介: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS 評分資料來源: CVE-2026-93834

CVSS v3

風險因素: High

基本分數: 8.8

時間性分數: 7.7

媒介: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

時間媒介: CVSS:3.0/E:U/RL:O/RC:C

弱點資訊

CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:qemu-common-debuginfo, p-cpe:/a:amazon:linux:qemu-common, p-cpe:/a:amazon:linux:qemu-debuginfo, p-cpe:/a:amazon:linux:qemu-debugsource, p-cpe:/a:amazon:linux:qemu-docs, p-cpe:/a:amazon:linux:qemu-guest-agent-debuginfo, p-cpe:/a:amazon:linux:qemu-guest-agent, p-cpe:/a:amazon:linux:qemu-img-debuginfo, p-cpe:/a:amazon:linux:qemu-img, p-cpe:/a:amazon:linux:qemu-kvm-core, p-cpe:/a:amazon:linux:qemu-kvm, p-cpe:/a:amazon:linux:qemu-pr-helper-debuginfo, p-cpe:/a:amazon:linux:qemu-pr-helper, p-cpe:/a:amazon:linux:qemu-system-aarch64-core-debuginfo, p-cpe:/a:amazon:linux:qemu-system-aarch64-core, p-cpe:/a:amazon:linux:qemu-system-aarch64, p-cpe:/a:amazon:linux:qemu-system-x86-core-debuginfo, p-cpe:/a:amazon:linux:qemu-system-x86-core, p-cpe:/a:amazon:linux:qemu-system-x86, p-cpe:/a:amazon:linux:qemu-tests-debuginfo, p-cpe:/a:amazon:linux:qemu-tests, p-cpe:/a:amazon:linux:qemu-tools-debuginfo, p-cpe:/a:amazon:linux:qemu-tools, p-cpe:/a:amazon:linux:qemu-user-binfmt, p-cpe:/a:amazon:linux:qemu-user-debuginfo, p-cpe:/a:amazon:linux:qemu-user-static-aarch64-debuginfo, p-cpe:/a:amazon:linux:qemu-user-static-aarch64, p-cpe:/a:amazon:linux:qemu-user-static-x86-debuginfo, p-cpe:/a:amazon:linux:qemu-user-static-x86, p-cpe:/a:amazon:linux:qemu-user-static, p-cpe:/a:amazon:linux:qemu-user, p-cpe:/a:amazon:linux:qemu

必要的 KB 項目: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

可輕鬆利用: No known exploits are available

修補程式發佈日期: 2026/10/24

弱點發布日期: 2026/9/18

參考資訊

CVE: CVE-2026-17588, CVE-2026-18054, CVE-2026-50624, CVE-2026-61402, CVE-2026-61476, CVE-2026-63110, CVE-2026-63320, CVE-2026-63321, CVE-2026-63322, CVE-2026-66899, CVE-2026-66900, CVE-2026-77913, CVE-2026-81627, CVE-2026-84788, CVE-2026-93834

IAVB: 2026-B-0284