Debian DSA-5280-1：grub2 - 安全更新
high Nessus 插件 ID 167746
语言：
简介
远程 Debian 主机上缺少一个或多个与安全性相关的更新。描述
远程 Debian 11 主机上安装的多个程序包受到 dsa-5280 公告中提及的多个漏洞影响。- grub2：grub_font_construct_glyph() 中的缓冲区溢出可导致越界写入和可能的安全启动绕过 (CVE-2022-2601)
- grub2：重新编制某些 unicode 序列时，存在基于堆的越界写入 (CVE-2022-3775)
请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。
解决方案
升级 grubz 程序包。对于稳定发行版本 (bullseye)，已在 2.06-3~deb11u4 版本中修复这些问题。
另见
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
插件详情
严重性: High
ID: 167746
文件名: debian_DSA-5280.nasl
版本: 1.3
类型: local
代理: unix
发布时间: 2022/11/16
最近更新时间: 2022/12/19
支持的传感器: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent
风险信息
VPR
风险因素: High
分数: 7.3
CVSS v2
风险因素: High
基本分数: 7.2
时间分数: 5.3
矢量: AV:L/AC:L/Au:N/C:C/I:C/A:C
时间矢量: E:U/RL:OF/RC:C
CVSS 分数来源: CVE-2022-2601
CVSS v3
风险因素: High
基本分数: 8.6
时间分数: 7.5
矢量: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
时间矢量: E:U/RL:O/RC:C
漏洞信息
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
必需的 KB 项: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
易利用性: No known exploits are available
补丁发布日期: 2022/11/15
漏洞发布日期: 2022/11/16
参考资料信息
CVE: CVE-2022-2601, CVE-2022-3775