CVE-2023-4692

Name	CVE-2023-4692
Description	An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3605-1, DSA-5519-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
grub2 (PTS)	buster	2.06-3~deb10u1	vulnerable
	buster (security)	2.06-3~deb10u4	fixed
	bullseye (security), bullseye	2.06-3~deb11u6	fixed
	bookworm, bookworm (security)	2.06-13+deb12u1	fixed
	trixie	2.12-2~deb13u1	fixed
	sid	2.12-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
grub2	source	buster	2.06-3~deb10u4	DLA-3605-1
grub2	source	bullseye	2.06-3~deb11u6	DSA-5519-1
grub2	source	bookworm	2.06-13+deb12u1	DSA-5519-1
grub2	source	(unstable)	2.12~rc1-11

https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html
https://lore.kernel.org/all/ZRxK8s4nQV2jBq%2F9@tomti.i.net-space.pl/