CVE-2020-12364

NameCVE-2020-12364
DescriptionNull pointer reference in some Intel(R) Graphics Drivers for Windows* before version 26.20.100.7212 and before version Linux kernel version 5.5 may allow a privileged user to potentially enable a denial of service via local access.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firmware-nonfree (PTS)buster/non-free20190114-2vulnerable
bullseye/non-free20210315-3fixed
sid/non-free, bookworm/non-free20210818-1fixed
linux (PTS)buster, buster (security)4.19.249-2vulnerable
bullseye5.10.140-1vulnerable
bullseye (security)5.10.136-1vulnerable
bookworm5.19.6-1fixed
sid5.19.11-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firmware-nonfreesource(unstable)20210208-1
linuxsource(unstable)5.14.6-1

Notes

[bullseye] - linux <ignored> (Too intrusive to backport)
[buster] - linux <ignored> (Too intrusive to backport)
[buster] - firmware-nonfree <no-dsa> (Minor issue, too intrusive to fix since kernel patch is needed)
[stretch] - firmware-nonfree <ignored> (Minor issue, too intrusive to fix since kernel patch is needed)
Short of details: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00438.html
Per Intel, this was fixed by a firmware update. v49.0.1 of the
firmware is required. The new firmware requires a kernel patch
https://git.kernel.org/linus/c784e5249e773689e38d2bc1749f08b986621a26
Firmware was added via https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=c487f7dadcd21116613441ed355b764003b3f57b
The vulnerability is fixed in firmware, but needs an updated Linux kernel to load
the updated firmware, thus also marking linux as affected

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