PT-2023-12100 · Amd · Amd Secure Encrypted Virtualization+1

Published 2023-05-09 · Updated 2025-01-28 · CVE-2021-26406

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions AMD Secure Encrypted Virtualization (SEV) and SEV-ES (affected versions not specified)

Description The issue is related to insufficient validation in parsing Owner's Certificate Authority (OCA) certificates, which can lead to a host crash and potentially result in denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2021-26406

Affected Products

Amd Secure Encrypted Virtualization

Sev-Es

References · 7

• https://amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-26406 · Security Note
• https://osv.dev/vulnerability/CVE-2021-26406 · Vendor Advisory
• https://amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 · Vendor Advisory
• https://t.me/cvenotify/50062 · Telegram Post
• https://t.me/cvenotify/108879 · Telegram Post
• https://t.me/cibsecurity/63656 · Telegram Post