SB2016122812 - Use-after-free in Linux kernel core
Published: December 28, 2016
Security Bulletin ID
SB2016122812
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2016-9794)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to a use-after-free error within the snd_pcm_period_elapsed() function in sound/core/pcm_lib.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://patchwork.kernel.org/patch/8752621/
- https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4
- https://bugzilla.redhat.com/show_bug.cgi?id=1401494
- http://www.openwall.com/lists/oss-security/2016/12/03/2
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4
- http://www.securityfocus.com/bid/94654
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html
- https://source.android.com/security/bulletin/2017-05-01
- http://rhn.redhat.com/errata/RHSA-2016-2574.html