SB2022120126 - Privilege escalation in Linux kernel BPF
Published: December 1, 2022
Security Bulletin ID
SB2022120126
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) Race condition (CVE-ID: CVE-2022-3623)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within the follow_page_pte() function in mm/gup.c. A local user can exploit the race and escalate privileges on the system.
Remediation
Install update from vendor's website.