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, ELA-826-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firmware-nonfree (PTS)jessie/non-free20190114+really20220913-0+deb8u3fixed
jessie/non-free (lts)20190114+really20220913-0+deb8u1fixed
stretch/non-free20190114+really20220913-0+deb9u3fixed
stretch/non-free (security)20190114-2~deb9u1vulnerable
stretch/non-free (lts)20190114+really20220913-0+deb9u1fixed
buster/non-free20190114+really20220913-0+deb10u3fixed
buster/non-free (security)20190114+really20220913-0+deb10u2fixed
bullseye/non-free20210315-3fixed
bookworm/non-free-firmware20230210-5fixed
sid/non-free-firmware, trixie/non-free-firmware20240909-2fixed
linux (PTS)jessie, jessie (lts)3.16.84-1vulnerable
stretch (security)4.9.320-2vulnerable
stretch (lts), stretch4.9.320-3vulnerable
buster (security), buster, buster (lts)4.19.316-1vulnerable
bullseye5.10.223-1vulnerable
bullseye (security)5.10.226-1vulnerable
bookworm6.1.115-1fixed
bookworm (security)6.1.112-1fixed
trixie6.11.7-1fixed
sid6.11.9-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firmware-nonfreesourcejessie20190114+really20220913-0+deb8u1ELA-826-1
firmware-nonfreesourcestretch20190114+really20220913-0+deb9u1ELA-826-1
firmware-nonfreesourcebuster20190114+really20220913-0+deb10u1DLA-3380-1
firmware-nonfreesource(unstable)20210208-1
linuxsourcejessie(unfixed)end-of-life
linuxsourcestretch(unfixed)end-of-life
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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