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."
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html ↗
- http://rhn.redhat.com/errata/RHSA-2015-2636.html ↗
- http://www.debian.org/security/2015/dsa-3372 ↗
- http://permalink.gmane.org/gmane.linux.kernel.containers/29173 ↗
- http://rhn.redhat.com/errata/RHSA-2016-0068.html ↗
- http://pkgs.fedoraproject.org/cgit/kernel.git/commit/?h=f22&id=520b64102de2f184036024b2a53de2b67463bd78 ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html ↗
- http://www.ubuntu.com/usn/USN-2792-1 ↗
- http://www.securityfocus.com/bid/73926 ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.html ↗
- http://www.debian.org/security/2015/dsa-3364 ↗
- http://www.ubuntu.com/usn/USN-2794-1 ↗
- http://www.ubuntu.com/usn/USN-2799-1 ↗
- http://www.ubuntu.com/usn/USN-2795-1 ↗
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.html ↗
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html ↗
- http://permalink.gmane.org/gmane.linux.kernel.containers/29177 ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.html ↗
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cde93be45a8a90d8c264c776fab63487b5038a65 ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.html ↗
- http://www.openwall.com/lists/oss-security/2015/04/04/4 ↗
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.4 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1209367 ↗
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=397d425dc26da728396e66d392d5dcb8dac30c37 ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html ↗
- https://github.com/torvalds/linux/commit/cde93be45a8a90d8c264c776fab63487b5038a65 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1209373 ↗
- https://github.com/torvalds/linux/commit/397d425dc26da728396e66d392d5dcb8dac30c37 ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00022.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.html ↗
- http://www.ubuntu.com/usn/USN-2798-1 ↗