| Name | CVE-2020-12362 |
| Description | Integer 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. |
| Source | CVE (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 Package | Release | Version | Status |
|---|
| firmware-nonfree (PTS) | buster/non-free | 20190114-2 | vulnerable |
| bullseye/non-free | 20210315-3 | fixed |
| sid/non-free, bookworm/non-free | 20210818-1 | fixed |
| linux (PTS) | buster | 4.19.249-2 | vulnerable |
| buster (security) | 4.19.260-1 | vulnerable |
| bullseye | 5.10.140-1 | vulnerable |
| bullseye (security) | 5.10.136-1 | vulnerable |
| bookworm, sid | 5.19.11-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| firmware-nonfree | source | (unstable) | 20210208-1 | | | |
| linux | source | (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> (Non-free not supported)
[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