CVE-2008-2936

Name	CVE-2008-2936
Description	Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message. NOTE: this can be leveraged to gain privileges if there is a symlink to an init script.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-1629-1, DSA-1629-2, DTSA-155-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
postfix (PTS)	jessie, jessie (lts)	2.11.3-1+deb8u3	fixed
	stretch (lts), stretch	3.1.15-0+deb9u2	fixed
	buster (security), buster, buster (lts)	3.4.23-0+deb10u2	fixed
	bullseye	3.5.25-0+deb11u1	fixed
	bookworm	3.7.11-0+deb12u1	fixed
	sid, trixie	3.9.0-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
postfix	source	etch	2.3.8-2+etch1		DSA-1629-2
postfix	source	lenny	2.5.2-2lenny1		DTSA-155-1
postfix	source	(unstable)	2.5.4-1