CVE-2014-7970
MEDIUM severity · CVSS 5.5 · Uncontrolled resource consumption
5.5CVSS MEDIUM
Summary
The pivot_root implementation in fs/namespace.c in the Linux kernel through 3.17 does not properly interact with certain locations of a chroot directory, which allows local users to cause a denial of service (mount-tree loop) via . (dot) values in both arguments to the pivot_root system call.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
Official patch: http://www.openwall.com/lists/oss-security/2014/10/08/21 ↗
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2014/10/08/21Patch
- http://www.spinics.net/lists/linux-fsdevel/msg79153.htmlPatch
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlAdvisory
- http://secunia.com/advisories/60174
- http://secunia.com/advisories/61142
- http://www.securityfocus.com/bid/70319Advisory
- http://www.securitytracker.com/id/1030991Advisory
- http://www.ubuntu.com/usn/USN-2419-1Advisory