CVE-2020-12362

NameCVE-2020-12362
DescriptionInteger overflow in the firmware for some Intel(R) Graphics Drivers for Windows * before version 26.20.100.7212 and before Linux kernel version 5.5 may allow a privileged user to potentially enable an escalation of privilege via local access.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3380-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firmware-nonfree (PTS)bullseye/non-free20210315-3fixed
bookworm/non-free-firmware20230210-5fixed
sid/non-free-firmware, trixie/non-free-firmware20240610-1fixed
linux (PTS)bullseye5.10.218-1vulnerable
bullseye (security)5.10.221-1vulnerable
bookworm6.1.94-1fixed
bookworm (security)6.1.99-1fixed
trixie6.9.9-1fixed
sid6.9.10-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firmware-nonfreesourcebuster20190114+really20220913-0+deb10u1DLA-3380-1
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)
[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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