CVE-2015-5706
MEDIUM severity · CVSS 4.6 · Use-after-free
4.6CVSS MEDIUM
Summary
Use-after-free vulnerability in the path_openat function in fs/namei.c in the Linux kernel 3.x and 4.x before 4.0.4 allows local users to cause a denial of service or possibly have unspecified other impact via O_TMPFILE filesystem operations that leverage a duplicate cleanup operation.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)0%
AV:L/AC:L/Au:N/C:P/I:P/A:P
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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f15133df088ecadd141ea1907f2c96df67c729f0 ↗
Additional information
- NVD record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f15133df088ecadd141ea1907f2c96df67c729f0Patch
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.4Advisory
- http://twitter.com/grsecurity/statuses/597127122910490624
- http://www.debian.org/security/2015/dsa-3329Advisory
- http://www.openwall.com/lists/oss-security/2015/08/01/5Advisory
- http://www.securityfocus.com/bid/76142Advisory
- http://www.ubuntu.com/usn/USN-2680-1Advisory
- http://www.ubuntu.com/usn/USN-2681-1Advisory