CVEvulnerability

CVE-2015-2925

6.9 MEDIUM Published 2015-11-16 Modified 2026-06-17 Official page ↗

Status: Modified
Published: 2015-11-16
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 2.0 ([email protected]): 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C

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 configurations

• linux linux kernel (< 3.2.72) • linux linux kernel (>= 3.3 < 3.4.110) • linux linux kernel (>= 3.5 < 3.10.91) • linux linux kernel (>= 3.11 < 3.12.49) • linux linux kernel (>= 3.13 < 3.14.55) • linux linux kernel (>= 3.15 < 3.16.35) • linux linux kernel (>= 3.17 < 3.18.23) • linux linux kernel (>= 3.19 < 4.1.11) • linux linux kernel (>= 4.2 < 4.2.4) • debian debian linux 7.0 • debian debian linux 8.0 • canonical ubuntu linux 12.04 • canonical ubuntu linux 14.04 • canonical ubuntu linux 15.04

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=397d425dc26da728396e66d392d5dcb8dac30c37 Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cde93be45a8a90d8c264c776fab63487b5038a65 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00022.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.html Mailing List, Third Party Advisory
http://permalink.gmane.org/gmane.linux.kernel.containers/29173 Broken Link
http://permalink.gmane.org/gmane.linux.kernel.containers/29177 Broken Link
http://pkgs.fedoraproject.org/cgit/kernel.git/commit/?h=f22&id=520b64102de2f184036024b2a53de2b67463bd78 Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2636.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0068.html Third Party Advisory
http://www.debian.org/security/2015/dsa-3364 Third Party Advisory
http://www.debian.org/security/2015/dsa-3372 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.4 Vendor Advisory
http://www.openwall.com/lists/oss-security/2015/04/04/4 Mailing List, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html Third Party Advisory
http://www.securityfocus.com/bid/73926 Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2792-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2794-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2795-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2798-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2799-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1209367 Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1209373 Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/397d425dc26da728396e66d392d5dcb8dac30c37 Third Party Advisory
https://github.com/torvalds/linux/commit/cde93be45a8a90d8c264c776fab63487b5038a65 Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=397d425dc26da728396e66d392d5dcb8dac30c37 Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cde93be45a8a90d8c264c776fab63487b5038a65 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00022.html Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.html Mailing List, Third Party Advisory
http://permalink.gmane.org/gmane.linux.kernel.containers/29173 Broken Link
http://permalink.gmane.org/gmane.linux.kernel.containers/29177 Broken Link
http://pkgs.fedoraproject.org/cgit/kernel.git/commit/?h=f22&id=520b64102de2f184036024b2a53de2b67463bd78 Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2636.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0068.html Third Party Advisory
http://www.debian.org/security/2015/dsa-3364 Third Party Advisory
http://www.debian.org/security/2015/dsa-3372 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.4 Vendor Advisory
http://www.openwall.com/lists/oss-security/2015/04/04/4 Mailing List, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html Third Party Advisory
http://www.securityfocus.com/bid/73926 Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2792-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2794-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2795-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2798-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2799-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1209367 Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1209373 Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/397d425dc26da728396e66d392d5dcb8dac30c37 Third Party Advisory
https://github.com/torvalds/linux/commit/cde93be45a8a90d8c264c776fab63487b5038a65 Third Party Advisory