CVE-2015-2925

Name	CVE-2015-2925
Description	The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a "double-chroot attack."
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-325-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	buster	4.19.249-2	fixed
	buster (security)	4.19.269-1	fixed
	bullseye	5.10.158-2	fixed
	bullseye (security)	5.10.162-1	fixed
	bookworm	6.1.15-1	fixed
	sid	6.1.20-1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	wheezy	3.2.68-1+deb7u5
linux	source	jessie	3.16.7-ckt11-1+deb8u4
linux	source	(unstable)	4.2.1-1
linux-2.6	source	squeeze	2.6.32-48squeeze16	DLA-325-1
linux-2.6	source	(unstable)	(unfixed)

http://permalink.gmane.org/gmane.linux.kernel.containers/29173
http://permalink.gmane.org/gmane.linux.kernel.containers/29177