CVE catalog

CVE-2022-42321

xen affected and fixed versions

[CVE catalog]

Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.

Severity
Medium · CVSS 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.29% · 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
Debiantrixie-securityxen4.20.4+39-gf1e1321c87-0+deb13u1Fixed[CVE-2022-42321]
Debiantrixiexen4.16.2+90-g0d39a6d1ae-1FixedDistribution-reported fixed boundary[CVE-2022-42321]
Debiantrixiexen4.20.3+127-gc42374a105-0+deb13u1Fixed[CVE-2022-42321]
Debiansidxen4.16.2+90-g0d39a6d1ae-1FixedDistribution-reported fixed boundary[CVE-2022-42321]
Debiansidxen4.20.4+39-gf1e1321c87-1Fixed[CVE-2022-42321]
Debianforkyxen4.16.2+90-g0d39a6d1ae-1FixedDistribution-reported fixed boundary[CVE-2022-42321]
Debianforkyxen4.20.4+39-gf1e1321c87-1Fixed[CVE-2022-42321]
Debianbookworm-securityxen4.17.7-0+deb12u1Fixed[CVE-2022-42321]
Debianbookwormxen4.16.2+90-g0d39a6d1ae-1FixedDistribution-reported fixed boundary[CVE-2022-42321]
Debianbookwormxen4.17.5+72-g01140da4e8-1Fixed[CVE-2022-42321]
Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Debianbookwormxen4.16.2+90-g0d39a6d1ae-1FixedDistribution-reported fixed boundary[CVE-2022-42321]
Debianbookwormxen4.17.5+72-g01140da4e8-1Fixed[CVE-2022-42321]
Debianbookworm-securityxen4.17.7-0+deb12u1Fixed[CVE-2022-42321]
Debianforkyxen4.16.2+90-g0d39a6d1ae-1FixedDistribution-reported fixed boundary[CVE-2022-42321]
Debianforkyxen4.20.4+39-gf1e1321c87-1Fixed[CVE-2022-42321]
Debiansidxen4.16.2+90-g0d39a6d1ae-1FixedDistribution-reported fixed boundary[CVE-2022-42321]
Debiansidxen4.20.4+39-gf1e1321c87-1Fixed[CVE-2022-42321]
Debiantrixiexen4.16.2+90-g0d39a6d1ae-1FixedDistribution-reported fixed boundary[CVE-2022-42321]
Debiantrixiexen4.20.3+127-gc42374a105-0+deb13u1Fixed[CVE-2022-42321]
Debiantrixie-securityxen4.20.4+39-gf1e1321c87-0+deb13u1Fixed[CVE-2022-42321]
Original provider fields
{
  "package_releases": [
    {
      "name": "xen",
      "status": "fixed",
      "release": "sid",
      "version": "4.20.4+39-gf1e1321c87-1"
    },
    {
      "name": "xen",
      "status": "fixed",
      "release": "forky",
      "version": "4.20.4+39-gf1e1321c87-1"
    },
    {
      "name": "xen",
      "status": "fixed",
      "release": "trixie",
      "version": "4.20.3+127-gc42374a105-0+deb13u1"
    },
    {
      "name": "xen",
      "status": "fixed",
      "release": "trixie-security",
      "version": "4.20.4+39-gf1e1321c87-0+deb13u1"
    },
    {
      "name": "xen",
      "status": "fixed",
      "release": "bookworm",
      "version": "4.17.5+72-g01140da4e8-1"
    },
    {
      "name": "xen",
      "status": "fixed",
      "release": "bookworm-security",
      "version": "4.17.7-0+deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "xen",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "4.16.2+90-g0d39a6d1ae-1"
    },
    {
      "bug": null,
      "name": "xen",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "4.16.2+90-g0d39a6d1ae-1"
    },
    {
      "bug": null,
      "name": "xen",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "4.16.2+90-g0d39a6d1ae-1"
    },
    {
      "bug": null,
      "name": "xen",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "4.16.2+90-g0d39a6d1ae-1"
    }
  ],
  "distribution_packages": []
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [libxencall1]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxen-dev]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxendevicemodel1]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxenevtchn1]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxenforeignmemory1]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxengnttab1]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxenhypfs1]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxenmisc4.17]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxenstore4]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxentoolcore1]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [libxentoollog1]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [xen-doc]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [xen-hypervisor-4.17-amd64]Unknown

    Source package: [xen]

    Details (2)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [xen-hypervisor-4.17-amd64-dbg]Unknown

    Source package: [xen]

    Details (2)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [xen-hypervisor-4.17-arm64]Unknown

    Source package: [xen]

    Details (2)

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [xen-hypervisor-4.17-arm64-dbg]Unknown

    Source package: [xen]

    Details (2)

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [xen-hypervisor-common]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [xenstore-utils]Unknown

    Source package: [xen]

    Details (4)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [xen-system-amd64]Unknown

    Source package: [xen]

    Details (2)

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · amd64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

  • [xen-system-arm64]Unknown

    Source package: [xen]

    Details (2)

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

    • 4.17.5+72-g01140da4e8-1 · arm64 · bookworm-security

      Fixed · Fixed: 4.16.2+90-g0d39a6d1ae-1

      dsa · xen · debian · bookworm

Next results

Observed:

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [SUSE security advisories and VEX]