Debian DLA-3190-1:grub2 - LTS 安全更新

high Nessus 插件 ID 167748

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 10 主机上安装的程序包受到 dla-3190 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 Debian 10 buster,已在 2.06-3~deb10u2 版本中修复这些问题。

另见

https://security-tracker.debian.org/tracker/source-package/grub2

https://www.debian.org/lts/security/2022/dla-3190

https://security-tracker.debian.org/tracker/CVE-2022-2601

https://security-tracker.debian.org/tracker/CVE-2022-3775

https://packages.debian.org/source/buster/grub2

插件详情

严重性: High

ID: 167748

文件名: debian_DLA-3190.nasl

版本: 1.4

类型: local

代理: unix

发布时间: 2022/11/16

最近更新时间: 2023/10/3

支持的传感器: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

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: 5.6

矢量: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A: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: 7.7

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: CVSS:3.0/E:P/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-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:grub2, p-cpe:/a:debian:debian_linux:grub2-common, cpe:/o:debian:debian_linux:10.0

必需的 KB 项: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

可利用: true

易利用性: Exploits are available

补丁发布日期: 2022/11/16

漏洞发布日期: 2022/11/16

参考资料信息

CVE: CVE-2022-2601, CVE-2022-3775