SB2023081439 - Race condition in Linux kernel KVM SEV-ES and SEV-SNP
Published: August 14, 2023
Security Bulletin ID
SB2023081439
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-2023-4155)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in KVM AMD Secure Encrypted Virtualization (SEV) in Linux kernel. A local user can exploit the race and escalate privileges on the system.
Remediation
Install update from vendor's website.