Debian DSA-5280-1：grub2 - 安全性更新
high Nessus Plugin ID 167746
語系：
Synopsis
遠端 Debian 主機上缺少一個或多個安全性更新。描述
遠端 Debian 11 主機上安裝的多個套件受到 dsa-5280 公告中提及的多個弱點影響。- grub2：grub_font_construct_glyph() 中的緩衝區溢位弱點可導致超出邊界寫入並可能繞過安全開機 (CVE-2022-2601)
- grub2：重新分配特定的 unicode 序列時發生堆積型超出邊界寫入 (CVE-2022-3775)
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
升級 grub2 套件。針對穩定的發行版本 (bullseye)，已在 2.06-3~deb11u4 版本中修正這些問題。
另請參閱
https://security-tracker.debian.org/tracker/source-package/grub2
https://www.debian.org/security/2022/dsa-5280
https://security-tracker.debian.org/tracker/CVE-2022-2601
Plugin 詳細資訊
嚴重性: High
ID: 167746
檔案名稱: debian_DSA-5280.nasl
版本: 1.3
類型: local
代理程式: unix
已發布: 2022/11/16
已更新: 2022/12/19
支持的傳感器: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent
風險資訊
VPR
風險因素: High
分數: 7.3
CVSS v2
風險因素: High
基本分數: 7.2
時間分數: 5.3
媒介: AV:L/AC:L/Au:N/C:C/I:C/A:C
時間媒介: E:U/RL:OF/RC:C
CVSS 評分資料來源: CVE-2022-2601
CVSS v3
風險因素: High
基本分數: 8.6
時間分數: 7.5
媒介: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
時間媒介: E:U/RL:O/RC:C
弱點資訊
CPE: p-cpe:/a:debian:debian_linux:grub-common, p-cpe:/a:debian:debian_linux:grub-coreboot, p-cpe:/a:debian:debian_linux:grub-coreboot-bin, p-cpe:/a:debian:debian_linux:grub-coreboot-dbg, p-cpe:/a:debian:debian_linux:grub-efi, p-cpe:/a:debian:debian_linux:grub-efi-amd64, p-cpe:/a:debian:debian_linux:grub-efi-amd64-bin, p-cpe:/a:debian:debian_linux:grub-efi-amd64-dbg, p-cpe:/a:debian:debian_linux:grub-efi-amd64-signed-template, p-cpe:/a:debian:debian_linux:grub-efi-arm, p-cpe:/a:debian:debian_linux:grub-efi-arm-bin, p-cpe:/a:debian:debian_linux:grub-efi-arm-dbg, p-cpe:/a:debian:debian_linux:grub-efi-arm64, p-cpe:/a:debian:debian_linux:grub-efi-arm64-bin, p-cpe:/a:debian:debian_linux:grub-efi-arm64-dbg, p-cpe:/a:debian:debian_linux:grub-efi-arm64-signed-template, p-cpe:/a:debian:debian_linux:grub-efi-ia32, p-cpe:/a:debian:debian_linux:grub-efi-ia32-bin, p-cpe:/a:debian:debian_linux:grub-efi-ia32-dbg, p-cpe:/a:debian:debian_linux:grub-efi-ia32-signed-template, p-cpe:/a:debian:debian_linux:grub-emu, p-cpe:/a:debian:debian_linux:grub-emu-dbg, p-cpe:/a:debian:debian_linux:grub-firmware-qemu, p-cpe:/a:debian:debian_linux:grub-ieee1275, p-cpe:/a:debian:debian_linux:grub-ieee1275-bin, p-cpe:/a:debian:debian_linux:grub-ieee1275-dbg, p-cpe:/a:debian:debian_linux:grub-linuxbios, p-cpe:/a:debian:debian_linux:grub-mount-udeb, p-cpe:/a:debian:debian_linux:grub-pc, p-cpe:/a:debian:debian_linux:grub-pc-bin, p-cpe:/a:debian:debian_linux:grub-pc-dbg, p-cpe:/a:debian:debian_linux:grub-rescue-pc, p-cpe:/a:debian:debian_linux:grub-theme-starfield, p-cpe:/a:debian:debian_linux:grub-uboot, p-cpe:/a:debian:debian_linux:grub-uboot-bin, p-cpe:/a:debian:debian_linux:grub-uboot-dbg, p-cpe:/a:debian:debian_linux:grub-xen, p-cpe:/a:debian:debian_linux:grub-xen-bin, p-cpe:/a:debian:debian_linux:grub-xen-dbg, p-cpe:/a:debian:debian_linux:grub-xen-host, p-cpe:/a:debian:debian_linux:grub-yeeloong, p-cpe:/a:debian:debian_linux:grub-yeeloong-bin, p-cpe:/a:debian:debian_linux:grub-yeeloong-dbg, p-cpe:/a:debian:debian_linux:grub2, p-cpe:/a:debian:debian_linux:grub2-common, cpe:/o:debian:debian_linux:11.0
必要的 KB 項目: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
可輕鬆利用: No known exploits are available
修補程式發佈日期: 2022/11/15
弱點發布日期: 2022/11/16
參考資訊
CVE: CVE-2022-2601, CVE-2022-3775