CVE-2021-26354: amd 2nd gen amd epyc™ processors Classic Buffer Overflow

Vulnerability summary

CVE-2021-26354 is a medium (CVSS 5.5) Classic Buffer Overflow vulnerability in amd 2nd gen amd epyc™ processors. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.9% of scored vulnerabilities.

Timeline

1. 09-05-2023
   PublishedVulnerability first disclosed.
2. 28-01-2025
   Last modifiedVulnerability information updated.

Description

Insufficient bounds checking in ASP may allow an attacker to issue a system call from a compromised ABL which may cause arbitrary memory values to be initialized to zero, potentially leading to a loss of integrity.

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.