CVE-2009-2904

Name	CVE-2009-2904
Description	A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges via hard links to setuid programs that use configuration files within the chroot directory, related to requirements for directory ownership.
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
openssh (PTS)	jessie, jessie (lts)	1:6.7p1-5+deb8u10	fixed
	stretch (security)	1:7.4p1-10+deb9u6	fixed
	stretch (lts), stretch	1:7.4p1-10+deb9u9	fixed
	buster	1:7.9p1-10+deb10u2	fixed
	buster (security)	1:7.9p1-10+deb10u4	fixed
	bullseye (security), bullseye	1:8.4p1-5+deb11u3	fixed
	bookworm (security), bookworm	1:9.2p1-2+deb12u2	fixed
	sid, trixie	1:9.7p1-4	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
openssh	source	(unstable)	(not affected)

- openssh <not-affected> (issue with homechroot patch specific to Red Hat)