CVE-2022-4543

NameCVE-2022-4543
DescriptionA flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems.
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
linux (PTS)bullseye5.10.218-1vulnerable
bullseye (security)5.10.221-1vulnerable
bookworm6.1.94-1vulnerable
bookworm (security)6.1.99-1vulnerable
sid, trixie6.9.10-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)(unfixed)

Notes

[bookworm] - linux <postponed> (Minor issue, revisit when/if fixed upstream)
[bullseye] - linux <postponed> (Minor issue, revisit when/if fixed upstream)
https://www.openwall.com/lists/oss-security/2022/12/16/3
https://www.willsroot.io/2022/12/entrybleed.html

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