#VU63688 Security features bypass in 3rd Gen AMD EPYC Processors - CVE-2021-26349
Published: May 26, 2022
Vulnerability identifier: #VU63688
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-26349
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
3rd Gen AMD EPYC Processors
3rd Gen AMD EPYC Processors
Software vendor:
AMD
AMD
Description
The vulnerability allows an attacker to compromise the guest OS.
The vulnerability exists due to failure to assign a new report ID to an imported guest. This can result in an SEV-SNP guest VM being tricked into trusting a dishonest Migration Agent (MA).
Remediation
Install updates from vendor's website.