CVE-2022-29900

NameCVE-2022-29900
DescriptionMis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3102-1, DSA-5184-1, DSA-5207-1, ELA-676-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie, jessie (lts)3.16.84-1vulnerable
stretch (security)4.9.320-2vulnerable
stretch (lts), stretch4.9.320-3vulnerable
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
sid6.7.9-2fixed
linux-5.10 (PTS)stretch (lts), stretch5.10.209-2~deb9u1fixed
buster (security)5.10.209-2~deb10u1fixed
xen (PTS)jessie, jessie (lts)4.4.4lts5-0+deb8u1vulnerable
stretch (security), stretch (lts), stretch4.8.5.final+shim4.10.4-1+deb9u12vulnerable
buster, buster (security)4.11.4+107-gef32c7afa2-1vulnerable
bullseye4.14.6-1fixed
bullseye (security)4.14.5+94-ge49571868d-1fixed
bookworm4.17.3+10-g091466ba55-1~deb12u1fixed
trixie4.17.3+10-g091466ba55-1fixed
sid4.17.3+36-g54dacb5c02-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcejessie(unfixed)end-of-life
linuxsourcestretch(unfixed)end-of-life
linuxsourcebullseye5.10.136-1DSA-5207-1
linuxsource(unstable)5.18.14-1
linux-5.10sourcestretch5.10.136-1~deb9u1ELA-676-1
linux-5.10sourcebuster5.10.136-1~deb10u1DLA-3102-1
xensourcejessie(unfixed)end-of-life
xensourcestretch(unfixed)end-of-life
xensourcebuster(unfixed)end-of-life
xensourcebullseye4.14.5+24-g87d90d511c-1DSA-5184-1
xensource(unstable)4.16.2-1

Notes

[buster] - linux <ignored> (Mitigation is too invasive to backport)
[buster] - xen <end-of-life> (DSA 4677-1)
https://comsec.ethz.ch/research/microarch/retbleed/
https://comsec.ethz.ch/wp-content/files/retbleed_sec22.pdf
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1037
https://xenbits.xen.org/xsa/advisory-407.html

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