| Name | CVE-2022-21166 |
| Description | Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure 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) |
| References | DLA-3065-1, DSA-5173-1, DSA-5178-1, DSA-5184-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| intel-microcode (PTS) | buster/non-free | 3.20220207.1~deb10u1 | vulnerable |
| buster/non-free (security) | 3.20220510.1~deb10u1 | fixed | |
| bullseye/non-free | 3.20220207.1~deb11u1 | vulnerable | |
| bullseye/non-free (security) | 3.20220510.1~deb11u1 | fixed | |
| bookworm/non-free, sid/non-free | 3.20220510.1 | fixed | |
| linux (PTS) | buster | 4.19.235-1 | vulnerable |
| buster (security) | 4.19.249-2 | fixed | |
| bullseye | 5.10.127-1 | fixed | |
| bullseye (security) | 5.10.136-1 | fixed | |
| bookworm, sid | 5.18.16-1 | fixed | |
| xen (PTS) | bullseye | 4.14.4+74-gd7b22226b5-1 | vulnerable |
| bullseye (security) | 4.14.5+24-g87d90d511c-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| intel-microcode | source | buster | 3.20220510.1~deb10u1 | DSA-5178-1 | ||
| intel-microcode | source | bullseye | 3.20220510.1~deb11u1 | DSA-5178-1 | ||
| intel-microcode | source | (unstable) | 3.20220510.1 | |||
| linux | source | stretch | 4.9.320-2 | DLA-3065-1 | ||
| linux | source | buster | 4.19.249-2 | DSA-5173-1 | ||
| linux | source | bullseye | 5.10.127-1 | |||
| linux | source | (unstable) | 5.18.5-1 | |||
| xen | source | bullseye | 4.14.5+24-g87d90d511c-1 | DSA-5184-1 |
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#DRPW
Linux kernel documentation patch: https://git.kernel.org/linus/4419470191386456e0b8ed4eb06a70b0021798a6
https://xenbits.xen.org/xsa/advisory-404.html