| 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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3065-1, DSA-5173-1, DSA-5178-1, DSA-5184-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| intel-microcode (PTS) | bullseye/non-free | 3.20240813.1~deb11u1 | fixed |
| bullseye/non-free (security) | 3.20250512.1~deb11u1 | fixed |
| bookworm/non-free-firmware | 3.20250211.1~deb12u1 | fixed |
| bookworm/non-free-firmware (security) | 3.20250512.1~deb12u1 | fixed |
| sid/non-free-firmware, trixie/non-free-firmware | 3.20250512.1 | fixed |
| linux (PTS) | bullseye | 5.10.223-1 | fixed |
| bullseye (security) | 5.10.237-1 | fixed |
| bookworm | 6.1.137-1 | fixed |
| bookworm (security) | 6.1.140-1 | fixed |
| trixie (security) | 6.12.31-1 | fixed |
| sid, trixie | 6.12.38-1 | fixed |
| xen (PTS) | bullseye | 4.14.6-1 | fixed |
| bullseye (security) | 4.14.5+94-ge49571868d-1 | fixed |
| bookworm | 4.17.5+23-ga4e5191dc0-1+deb12u1 | fixed |
| bookworm (security) | 4.17.5+23-ga4e5191dc0-1 | fixed |
| sid, trixie | 4.20.0+68-g35cb38b222-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[bullseye] - intel-microcode <no-dsa> (Minor issue)
[buster] - xen <end-of-life> (DSA 4677-1)
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