CVE-2011-3149

Name	CVE-2011-3149
Description	The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-2326-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pam (PTS)	bullseye	1.4.0-9+deb11u1	fixed
	bookworm	1.5.2-6+deb12u1	fixed
	forky, sid, trixie	1.7.0-5	fixed

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

Package	Type	Release	Fixed Version	Origin
pam	source	lenny	(not affected)
pam	source	squeeze	1.1.1-6.1+squeeze1	DSA-2326-1
pam	source	(unstable)	1.1.3-5

[lenny] - pam <not-affected> (user_env parsing not yet available)