SB2016111612 - Use-after-free in Linux kernel block
Published: November 16, 2016
Security Bulletin ID
SB2016111612
Severity
Medium
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-2016-7911)
The vulnerability allows a local non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to a use-after-free error within the get_task_ioprio() function in block/ioprio.c. A local non-authenticated attacker can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.6
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8ba8682107ee2ca3347354e018865d8e1967c5f4
- https://github.com/torvalds/linux/commit/8ba8682107ee2ca3347354e018865d8e1967c5f4
- http://source.android.com/security/bulletin/2016-11-01.html
- http://www.securityfocus.com/bid/94135