CVE-2016-0728
HIGH severity · CVSS 7.8
7.8CVSS HIGH
Summary
The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. 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=23567fd052a9abb6d67fe8e7a9ccdd9800a540f2Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00026.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00012.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00033.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00034.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00035.htmlAdvisory