CVE-2024-45781

Name	CVE-2024-45781
Description	A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1098319

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
grub2 (PTS)	bullseye (security), bullseye	2.06-3~deb11u6	vulnerable
	bookworm, bookworm (security)	2.06-13+deb12u1	vulnerable
	forky, sid, trixie	2.12-9	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
grub2	source	(unstable)	2.12-6			1098319

Notes

[bookworm] - grub2 <no-dsa> (Minor issue, will be fixed via point release)
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
https://www.openwall.com/lists/oss-security/2025/02/18/3