CVE-2022-43995

Name	CVE-2022-43995
Description	Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
sudo (PTS)	buster	1.8.27-1+deb10u3	vulnerable
	buster (security)	1.8.27-1+deb10u6	vulnerable
	bullseye (security), bullseye	1.9.5p2-3+deb11u1	vulnerable
	bookworm	1.9.13p3-1+deb12u1	fixed
	sid, trixie	1.9.15p5-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
sudo	source	(unstable)	1.9.12p1-1	unimportant

Notes

Fixed by: https://github.com/sudo-project/sudo/commit/bd209b9f16fcd1270c13db27ae3329c677d48050 (SUDO_1_9_12p1)
Binary packages compiled with PAM support not enabling the plugins/sudoers/auth/passwd.c code