SB2020120317 - Privilege escalation in perf subsystem in Linux kernel
Published: December 3, 2020 Updated: March 17, 2021
Security Bulletin ID
SB2020120317
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-2020-14351)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the perf subsystem. A local user with permission to monitor perf events cam corrupt memory and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.