#VU97944 Out-of-bounds write in AMD products - CVE-2021-26344
Published: October 2, 2024
Vulnerability identifier: #VU97944
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-26344
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
1st Gen AMD EPYC Processors
2nd Gen AMD EPYC Processors
3rd Gen AMD EPYC Processors
1st 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 escalate privileges on the system.
The vulnerability exists due to a boundary error when processing the AMD PSP1 Configuration Block (APCB). A local user can trigger an out-of-bounds write, modify the APCB block and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.