CVE-2023-20592

NameCVE-2023-20592
DescriptionImproper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential loss of guest virtual machine (VM) memory 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~deb11u1fixed
bookworm/non-free-firmware3.20240820.1~deb12u1fixed
bookworm/non-free-firmware (security)3.20230719.1~deb12u1fixed
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-microcodesourcebuster3.20230719.1~deb10u1
amd64-microcodesourcebullseye3.20230719.1~deb11u1
amd64-microcodesourcebookworm3.20230719.1~deb12u1
amd64-microcodesource(unstable)3.20230719.1

Notes

https://cachewarpattack.com/
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3005.html

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