SB2015123102 - NULL pointer dereference in linux-grsec (Alpine package)
Published: December 31, 2015
Security Bulletin ID
SB2015123102
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) NULL pointer dereference (CVE-ID: CVE-2015-8543)
The vulnerability allows a local attacker to cause DoS condition or gain elevated privileges on the target system.The weakness exists in the networking implementation due to improper validation of protocol identifiers for certain protocol families. A local attacker can trigger NULL pointer dereference or gain root privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application.
Remediation
Install update from vendor's website.