CVE-2010-3431

Name	CVE-2010-3431
Description	The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid system call, which might allow local users to obtain sensitive information by leveraging an unintended uid, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	599832

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pam (PTS)	jessie	1.1.8-3.1+deb8u2	fixed
	stretch	1.1.8-3.6	fixed
	buster	1.3.1-5	fixed
	bullseye	1.4.0-9+deb11u1	fixed
	bookworm	1.5.2-6+deb12u1	fixed
	sid, trixie	1.5.3-7	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
pam	source	(unstable)	1.1.3-1	low		599832

[squeeze] - pam <no-dsa> (Minor issue)
20100924164823.GA21584@openwall.com