CVE-2023-20571: amd amd ryzen™ 5000 series processors with radeon™ graphics “barcelo” Race Condition

Vulnerability summary

CVE-2023-20571 is a high (CVSS 8.1) Race Condition vulnerability in amd amd ryzen™ 5000 series processors with radeon™ graphics “barcelo”. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.5% of scored vulnerabilities.

Timeline

1. 14-11-2023
   PublishedVulnerability first disclosed.
2. 02-08-2024
   Last modifiedVulnerability information updated.

Description

A race condition in System Management Mode (SMM) code may allow an attacker using a compromised user space to leverage CVE-2018-8897 potentially resulting in privilege escalation.

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.