| Name | CVE-2022-21123 |
| Description | Incomplete cleanup of multi-core shared buffers 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 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| intel-microcode (PTS) | buster/non-free | 3.20220510.1~deb10u1 | fixed |
| buster/non-free (security) | 3.20231114.1~deb10u1 | fixed | |
| bullseye/non-free, bullseye/non-free (security) | 3.20231114.1~deb11u1 | fixed | |
| bookworm/non-free-firmware (security), bookworm/non-free-firmware | 3.20231114.1~deb12u1 | fixed | |
| trixie/non-free-firmware, sid/non-free-firmware | 3.20240312.1 | fixed | |
| linux (PTS) | buster | 4.19.249-2 | fixed |
| buster (security) | 4.19.304-1 | fixed | |
| bullseye | 5.10.209-2 | fixed | |
| bullseye (security) | 5.10.205-2 | fixed | |
| bookworm | 6.1.76-1 | fixed | |
| bookworm (security) | 6.1.85-1 | fixed | |
| trixie | 6.6.15-2 | fixed | |
| sid | 6.7.9-2 | fixed | |
| xen (PTS) | buster, buster (security) | 4.11.4+107-gef32c7afa2-1 | vulnerable |
| bullseye | 4.14.6-1 | fixed | |
| bullseye (security) | 4.14.5+94-ge49571868d-1 | fixed | |
| bookworm | 4.17.3+10-g091466ba55-1~deb12u1 | fixed | |
| trixie | 4.17.3+10-g091466ba55-1 | fixed | |
| sid | 4.17.3+36-g54dacb5c02-1 | 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 | buster | (unfixed) | end-of-life | ||
| xen | source | bullseye | 4.14.5+24-g87d90d511c-1 | DSA-5184-1 | ||
| xen | source | (unstable) | 4.16.2-1 |
[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#SBDR
Linux kernel documentation patch: https://git.kernel.org/linus/4419470191386456e0b8ed4eb06a70b0021798a6
https://xenbits.xen.org/xsa/advisory-404.html