SB2022071266 - Privilege escalation in Microsoft Windows and Windows Server for AMD CPUs
Published: July 12, 2022 Updated: May 9, 2023
Security Bulletin ID
SB2022071266
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) Processor optimization removal or modification of security-critical code (CVE-ID: CVE-2022-29900)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a mistrained branch predictions for return instructions. A local user can execute arbitrary speculative code under certain microarchitecture-dependent conditions. The vulnerability was dubbed RETbleed.
Remediation
Install update from vendor's website.