SB2024103032 - Privilege escalation in FreeBSD umtx
Published: October 30, 2024
Security Bulletin ID
SB2024103032
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-2024-43102)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the _umtx_op(2) system call. A local user can run the UMTX_SHM_DESTROY sub-request in parallel to trigger a use-after-free error and execute arbitrary code or escape Capsicum sandbox.
Remediation
Install update from vendor's website.