SB2024040374 - Privilege escalation in Linux kernel kvm mmu support
Published: April 3, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024040374
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-2021-47094)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in arch/x86/kvm/mmu/tdp_iter.c. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.