CVE-2023-20588

NameCVE-2023-20588
DescriptionA 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)
ReferencesDLA-3623-1, DSA-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)4.19.304-1vulnerable
bullseye5.10.209-2fixed
bullseye (security)5.10.205-2fixed
bookworm6.1.76-1fixed
bookworm (security)6.1.69-1fixed
trixie6.6.15-2fixed
sid6.7.7-1fixed
linux-5.10 (PTS)buster (security)5.10.209-2~deb10u1fixed
xen (PTS)buster, buster (security)4.11.4+107-gef32c7afa2-1vulnerable
bullseye4.14.6-1vulnerable
bullseye (security)4.14.5+94-ge49571868d-1vulnerable
bookworm4.17.3+10-g091466ba55-1~deb12u1fixed
trixie4.17.3+10-g091466ba55-1fixed
sid4.17.3+10-g091466ba55-1.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebullseye5.10.197-1
linuxsourcebookworm6.1.52-1DSA-5492-1
linuxsource(unstable)6.4.13-1
linux-5.10sourcebuster5.10.197-1~deb10u1DLA-3623-1
xensourcebuster(unfixed)end-of-life
xensourcebullseye(unfixed)end-of-life
xensourcebookworm4.17.2+76-ge1f9cb16e2-1~deb12u1
xensource(unstable)4.17.2+55-g0b56bed864-1

Notes

[bullseye] - xen <end-of-life> (EOLed in Bullseye)
[buster] - xen <end-of-life> (DSA 4677-1)
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7007.html
https://git.kernel.org/linus/77245f1c3c6495521f6a3af082696ee2f8ce3921
https://git.kernel.org/linus/f58d6fbcb7c848b7f2469be339bc571f2e9d245b
https://xenbits.xen.org/xsa/advisory-439.html
https://github.com/xen-project/xen/commit/d7b78041dc819efde0350f27754a61cb01a93496

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