Linux Distros 未修補弱點：CVE-2021-3735
medium Nessus Plugin ID 224097
語言:
概要
Linux/Unix 主機上安裝的一個或多個套件存有弱點，供應商表示將不會修補。說明
Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。- 在 QEMU 的 AHCI 控制器裝置中發現一個鎖死問題。軟體重設 (ahci_reset_port) 處理來賓的主機至裝置註冊 FIS (框架資訊結構) 封包時，會發生此問題。來賓中有權限的使用者可利用此缺陷在主機上懸置 QEMU 處理程序，進而導致拒絕服務情形。此弱點對系統可用性威脅最大。(CVE-2021-3735)
請注意，Nessus 依賴供應商報告的套件存在。
解決方案
目前尚未有已知的解決方案。另請參閱
https://access.redhat.com/security/cve/cve-2021-3735
Plugin 詳細資訊
嚴重性: Medium
ID: 224097
檔案名稱: unpatched_CVE_2021_3735.nasl
版本: 1.5
類型: local
代理程式: unix
系列: Misc.
已發布: 2025/3/5
已更新: 2025/9/3
支援的感應器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
風險資訊
VPR
風險因素: Low
分數: 3.6
CVSS v2
風險因素: Medium
基本分數: 4.9
時間性分數: 3.6
媒介: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS 評分資料來源: CVE-2021-3735
CVSS v3
風險因素: Medium
基本分數: 4.4
時間性分數: 3.9
媒介: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
時間媒介: CVSS:3.0/E:U/RL:O/RC:C
弱點資訊
CPE: p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu-ccw, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:qemu-pr-helper, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:qemu-kvm-common, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu-gl, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-vga, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-usb-host, p-cpe:/a:centos:centos:qemu-guest-agent, p-cpe:/a:redhat:enterprise_linux:qemu-guest-agent, cpe:/o:centos:centos:8, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-blkio, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-vga, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu, p-cpe:/a:centos:centos:qemu-kvm-audio-pa, p-cpe:/a:centos:centos:qemu-img, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-vga-gl, p-cpe:/a:redhat:enterprise_linux:qemu-img, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu-pci, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-vga-gl, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu-pci, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-ui-egl-headless, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-usb-redirect, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:centos:centos:qemu-kvm-block-blkio, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-common, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:25.04, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-audio-pa, p-cpe:/a:centos:centos:qemu-kvm, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu-pci-gl, p-cpe:/a:redhat:enterprise_linux:qemu-kvm, p-cpe:/a:centos:centos:qemu-kvm-device-usb-host, p-cpe:/a:debian:debian_linux:qemu, p-cpe:/a:centos:centos:qemu-kvm-device-usb-redirect, cpe:/a:redhat:advanced_virtualization:8::el8, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:qemu-pr-helper, p-cpe:/a:centos:centos:qemu-kvm-tools, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu-pci-gl, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu-gl, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu-ccw, p-cpe:/a:canonical:ubuntu_linux:qemu, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tools, p-cpe:/a:centos:centos:qemu-kvm-ui-egl-headless
必要的 KB 項目: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier
可輕鬆利用: No known exploits are available
弱點發布日期: 2022/8/26
參考資訊
CVE: CVE-2021-3735