#VU63687 Out-of-bounds read in 2nd Gen AMD EPYC Processors and 3rd Gen AMD EPYC Processors - CVE-2021-26388
Published: May 26, 2022 / Updated: May 26, 2022
Vulnerability identifier: #VU63687
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-26388
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
2nd Gen AMD EPYC Processors
3rd Gen AMD EPYC Processors
2nd Gen AMD EPYC Processors
3rd Gen AMD EPYC Processors
Software vendor:
AMD
AMD
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation in the BIOS directory that allows for searches to read beyond the directory table copy in RAM. A local user can perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.