CVE-2015-2925
MEDIUM severity · CVSS 6.9
6.9CVSS MEDIUM
Summary
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."
Impact & exploitability
Attack vectorLocal
Attack complexity—
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)1%
AV:L/AC:M/Au:N/C:C/I:C/A:C
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=397d425dc26da728396e66d392d5dcb8dac30c37Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cde93be45a8a90d8c264c776fab63487b5038a65Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.htmlAdvisory