[SECURITY] [DLA 3605-1] grub2 security update

2023-10-0521:45:55

lists.debian.org

out-of-bounds write

buffer overflow

grub2

debian 10 buster

security update

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.6 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

32.7%

JSON

Debian LTS Advisory DLA-3605-1 [email protected]
https://www.debian.org/lts/security/ Utkarsh Gupta
October 06, 2023 https://wiki.debian.org/LTS

Package : grub2
Version : 2.06-3~deb10u4
CVE ID : CVE-2023-4692 CVE-2023-4693

A couple of security issues were reported in grub2 package, which is
GRand Unified Bootloader v2, that could cause out-of-bounds write and
heap-based buffer overflow.

For Debian 10 buster, these problems have been fixed in version
2.06-3~deb10u4.

We recommend that you upgrade your grub2 packages.

For the detailed security status of grub2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/grub2

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

OSVersionArchitecturePackageVersionFilename
Debian11mips64elgrub-common-dbgsym< 2.06-3~deb11u6grub-common-dbgsym_2.06-3~deb11u6_mips64el.deb
Debian11i386grub-theme-starfield< 2.06-3~deb11u6grub-theme-starfield_2.06-3~deb11u6_i386.deb
Debian12i386grub-xen-dbg< 2.06-13+deb12u1grub-xen-dbg_2.06-13+deb12u1_i386.deb
Debian12arm64grub2-common< 2.06-13+deb12u1grub2-common_2.06-13+deb12u1_arm64.deb
Debian11amd64grub-common< 2.06-3~deb11u6grub-common_2.06-3~deb11u6_amd64.deb
Debian12armhfgrub-uboot-dbg< 2.06-13+deb12u1grub-uboot-dbg_2.06-13+deb12u1_armhf.deb
Debian11armelgrub-efi-arm-bin< 2.06-3~deb11u6grub-efi-arm-bin_2.06-3~deb11u6_armel.deb
Debian11armhfgrub-uboot-bin< 2.06-3~deb11u6grub-uboot-bin_2.06-3~deb11u6_armhf.deb
Debian11i386grub-emu< 2.06-3~deb11u6grub-emu_2.06-3~deb11u6_i386.deb
Debian11ppc64elgrub-theme-starfield< 2.06-3~deb11u6grub-theme-starfield_2.06-3~deb11u6_ppc64el.deb

OS	Version	Architecture	Package	Version	Filename
Debian	11	mips64el	grub-common-dbgsym	< 2.06-3~deb11u6	grub-common-dbgsym_2.06-3~deb11u6_mips64el.deb
Debian	11	i386	grub-theme-starfield	< 2.06-3~deb11u6	grub-theme-starfield_2.06-3~deb11u6_i386.deb
Debian	12	i386	grub-xen-dbg	< 2.06-13+deb12u1	grub-xen-dbg_2.06-13+deb12u1_i386.deb
Debian	12	arm64	grub2-common	< 2.06-13+deb12u1	grub2-common_2.06-13+deb12u1_arm64.deb
Debian	11	amd64	grub-common	< 2.06-3~deb11u6	grub-common_2.06-3~deb11u6_amd64.deb
Debian	12	armhf	grub-uboot-dbg	< 2.06-13+deb12u1	grub-uboot-dbg_2.06-13+deb12u1_armhf.deb
Debian	11	armel	grub-efi-arm-bin	< 2.06-3~deb11u6	grub-efi-arm-bin_2.06-3~deb11u6_armel.deb
Debian	11	armhf	grub-uboot-bin	< 2.06-3~deb11u6	grub-uboot-bin_2.06-3~deb11u6_armhf.deb
Debian	11	i386	grub-emu	< 2.06-3~deb11u6	grub-emu_2.06-3~deb11u6_i386.deb
Debian	11	ppc64el	grub-theme-starfield	< 2.06-3~deb11u6	grub-theme-starfield_2.06-3~deb11u6_ppc64el.deb