SB2024102101 - Ubuntu update for amd64-microcode
Published: October 21, 2024
Security Bulletin ID
SB2024102101
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) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-31315)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper validation in a model specific register (MSR). A malicious application with ring0 access can modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.
Remediation
Install update from vendor's website.