| 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, ELA-652-1, ELA-680-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| intel-microcode (PTS) | jessie/non-free | 3.20240813.1~deb8u1 | fixed |
| jessie/non-free (lts) | 3.20230214.1~deb8u1 | fixed | |
| stretch/non-free | 3.20240813.1~deb9u1 | fixed | |
| stretch/non-free (security) | 3.20210608.2~deb9u2 | vulnerable | |
| stretch/non-free (lts) | 3.20230214.1~deb9u1 | fixed | |
| buster/non-free | 3.20240813.1~deb10u1 | fixed | |
| buster/non-free (security) | 3.20240312.1~deb10u1 | fixed | |
| bullseye/non-free | 3.20240813.1~deb11u1 | fixed | |
| bullseye/non-free (security) | 3.20231114.1~deb11u1 | fixed | |
| bookworm/non-free-firmware | 3.20240910.1~deb12u1 | fixed | |
| bookworm/non-free-firmware (security) | 3.20231114.1~deb12u1 | fixed | |
| sid/non-free-firmware, trixie/non-free-firmware | 3.20241112.1 | fixed | |
| linux (PTS) | jessie, jessie (lts) | 3.16.84-1 | vulnerable |
| stretch (security) | 4.9.320-2 | fixed | |
| stretch (lts), stretch | 4.9.320-3 | fixed | |
| buster (security), buster, buster (lts) | 4.19.316-1 | fixed | |
| bullseye | 5.10.223-1 | fixed | |
| bullseye (security) | 5.10.226-1 | fixed | |
| bookworm | 6.1.115-1 | fixed | |
| bookworm (security) | 6.1.112-1 | fixed | |
| trixie | 6.11.7-1 | fixed | |
| sid | 6.11.9-1 | fixed | |
| linux-4.19 (PTS) | jessie, jessie (lts) | 4.19.316-1~deb8u1 | fixed |
| stretch (security) | 4.19.232-1~deb9u1 | vulnerable | |
| stretch (lts), stretch | 4.19.316-1~deb9u1 | fixed | |
| xen (PTS) | jessie, jessie (lts) | 4.4.4lts5-0+deb8u1 | vulnerable |
| stretch (security), stretch (lts), stretch | 4.8.5.final+shim4.10.4-1+deb9u12 | vulnerable | |
| buster (security), buster, buster (lts) | 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 | |
| sid, trixie | 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 | jessie | 3.20220510.1~deb8u1 | ELA-680-1 | ||
| intel-microcode | source | stretch | 3.20220510.1~deb9u1 | ELA-680-1 | ||
| 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 | jessie | (unfixed) | end-of-life | ||
| 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 | |||
| linux-4.19 | source | jessie | 4.19.249-2~deb8u1 | ELA-652-1 | ||
| linux-4.19 | source | stretch | 4.19.249-2~deb9u1 | ELA-652-1 | ||
| xen | source | jessie | (unfixed) | end-of-life | ||
| xen | source | stretch | (unfixed) | end-of-life | ||
| 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