CVE catalog

CVE-2022-23639

rust-crossbeam-utils affected and fixed versions

[CVE catalog]

crossbeam-utils provides atomics, synchronization primitives, scoped threads, and other utilities for concurrent programming in Rust. crossbeam-utils prior to version 0.8.7 incorrectly assumed that the alignment of `{i,u}64` was always the same as `Atomic{I,U}64`. However, the alignment of `{i,u}64` on a 32-bit target can be smaller than `Atomic{I,U}64`. This can cause unaligned memory accesses and data race. Crates using `fetch_*` methods with `AtomicCell<{i,u}64>` are affected by this issue. 32-bit targets without `Atomic{I,U}64` and 64-bit targets are not affected by this issue. This has been fixed in crossbeam-utils 0.8.7. There are currently no known workarounds.

Severity
Medium · CVSS 6.2CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Published
Source
[NVD] · [CVE record]
EPSS
1.23% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / releasePackageVersionStatusSource
Debiantrixierust-crossbeam-utils0.8.19-1Fixed[CVE-2022-23639]
Debiantrixierust-crossbeam-utils0.8.8-1FixedDistribution-reported fixed boundary[CVE-2022-23639]
Debiansidrust-crossbeam-utils0.8.23-1Fixed[CVE-2022-23639]
Debiansidrust-crossbeam-utils0.8.8-1FixedDistribution-reported fixed boundary[CVE-2022-23639]
Debianforkyrust-crossbeam-utils0.8.23-1Fixed[CVE-2022-23639]
Debianforkyrust-crossbeam-utils0.8.8-1FixedDistribution-reported fixed boundary[CVE-2022-23639]
Debianbookwormrust-crossbeam-utils0.8.12-1Fixed[CVE-2022-23639]
Debianbookwormrust-crossbeam-utils0.8.8-1FixedDistribution-reported fixed boundary[CVE-2022-23639]
Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Debianbookwormrust-crossbeam-utils0.8.12-1Fixed[CVE-2022-23639]
Debianbookwormrust-crossbeam-utils0.8.8-1FixedDistribution-reported fixed boundary[CVE-2022-23639]
Debianforkyrust-crossbeam-utils0.8.23-1Fixed[CVE-2022-23639]
Debianforkyrust-crossbeam-utils0.8.8-1FixedDistribution-reported fixed boundary[CVE-2022-23639]
Debiansidrust-crossbeam-utils0.8.23-1Fixed[CVE-2022-23639]
Debiansidrust-crossbeam-utils0.8.8-1FixedDistribution-reported fixed boundary[CVE-2022-23639]
Debiantrixierust-crossbeam-utils0.8.19-1Fixed[CVE-2022-23639]
Debiantrixierust-crossbeam-utils0.8.8-1FixedDistribution-reported fixed boundary[CVE-2022-23639]
Original provider fields
{
  "package_releases": [
    {
      "name": "rust-crossbeam-utils",
      "status": "fixed",
      "release": "sid",
      "version": "0.8.23-1"
    },
    {
      "name": "rust-crossbeam-utils",
      "status": "fixed",
      "release": "forky",
      "version": "0.8.23-1"
    },
    {
      "name": "rust-crossbeam-utils",
      "status": "fixed",
      "release": "trixie",
      "version": "0.8.19-1"
    },
    {
      "name": "rust-crossbeam-utils",
      "status": "fixed",
      "release": "bookworm",
      "version": "0.8.12-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "rust-crossbeam-utils",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "0.8.8-1"
    },
    {
      "bug": null,
      "name": "rust-crossbeam-utils",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "0.8.8-1"
    },
    {
      "bug": null,
      "name": "rust-crossbeam-utils",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "0.8.8-1"
    },
    {
      "bug": null,
      "name": "rust-crossbeam-utils",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "0.8.8-1"
    }
  ],
  "distribution_packages": []
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [librust-crossbeam-utils-dev]Unknown

    Source package: [rust-crossbeam-utils]

    Details (2)

    • 0.8.12-1 · amd64 · bookworm

      Fixed · Fixed: 0.8.8-1

      dsa · rust-crossbeam-utils · debian · bookworm

    • 0.8.12-1 · arm64 · bookworm

      Fixed · Fixed: 0.8.8-1

      dsa · rust-crossbeam-utils · debian · bookworm

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [Red Hat security advisories and VEX]