SB2016111105 - Ubuntu update for Linux kernel (Xenial HWE)
Published: November 11, 2016
Security Bulletin ID
SB2016111105
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Denial of service (CVE-ID: CVE-2016-7042)
The vulnerability allows a local user to cause DoS conditions on the target system.The weakness exists due to using of incorrect buffer size for certain timeout data by the proc_keys_show function in security/keys/proc.c while enabling of GNU Compiler Collection (gcc) stack protector. By reading the /proc/keys file attackers can trigger stack memory corruption.
Successful exploitation of the vulnerability may result in denial of service on the vulnerable system.
Remediation
Install update from vendor's website.