CVE-2022-21123

NameCVE-2022-21123
DescriptionIncomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-3065-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
intel-microcode (PTS)stretch/non-free3.20200616.1~deb9u1vulnerable
stretch/non-free (security)3.20210608.2~deb9u2vulnerable
buster/non-free3.20220207.1~deb10u1vulnerable
buster/non-free (security)3.20210608.2~deb10u1vulnerable
bullseye/non-free3.20220207.1~deb11u1vulnerable
bookworm/non-free, sid/non-free3.20220510.1fixed
linux (PTS)stretch4.9.228-1vulnerable
stretch (security)4.9.320-2fixed
buster4.19.235-1vulnerable
buster (security)4.19.232-1vulnerable
bullseye5.10.106-1vulnerable
bullseye (security)5.10.120-1vulnerable
bookworm, sid5.18.5-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
intel-microcodesource(unstable)3.20220510.1
linuxsourcestretch4.9.320-2DLA-3065-1
linuxsource(unstable)5.18.5-1

Notes

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00615.html
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html#SBDR
Linux kernel documentation patch: https://git.kernel.org/linus/4419470191386456e0b8ed4eb06a70b0021798a6
https://xenbits.xen.org/xsa/advisory-404.html

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