CVE-2023-20588

NameCVE-2023-20588
Description A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. 
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-5480-1, DSA-5492-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2vulnerable
buster (security)4.19.289-2vulnerable
bullseye5.10.178-3vulnerable
bullseye (security)5.10.191-1fixed
bookworm6.1.38-1vulnerable
bookworm (security)6.1.52-1fixed
sid, trixie6.5.3-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebullseye5.10.191-1DSA-5480-1
linuxsourcebookworm6.1.52-1DSA-5492-1
linuxsource(unstable)6.4.13-1

Notes

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7007.html
https://git.kernel.org/linus/77245f1c3c6495521f6a3af082696ee2f8ce3921

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