CVE-2023-31356

NameCVE-2023-31356
DescriptionIncomplete system memory cleanup in SEV firmware could allow a privileged attacker to corrupt guest private memory, potentially resulting in a loss of data integrity.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
amd64-microcode (PTS)bullseye/non-free3.20240820.1~deb11u1fixed
bullseye/non-free (security)3.20230719.1~deb11u1vulnerable
bookworm/non-free-firmware3.20240820.1~deb12u1fixed
bookworm/non-free-firmware (security)3.20230719.1~deb12u1vulnerable
sid/non-free-firmware, trixie/non-free-firmware3.20240820.1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
amd64-microcodesourcebullseye3.20240820.1~deb11u1
amd64-microcodesourcebookworm3.20240820.1~deb12u1
amd64-microcodesource(unstable)3.20240820.1

Notes

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
https://lore.kernel.org/all/20240820182655.42311-1-john.allen@amd.com/

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