CVE catalog

CVE-2022-2652

v4l2loopback affected and fixed versions

Depending on the way the format strings in the card label are crafted it's possible to leak kernel stack memory. There is also the possibility for DoS due to the v4l2loopback kernel module crashing when providing the card label on request (reproduce e.g. with many %s modifiers in a row).

Severity: Medium · CVSS 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
Published: Oct 20, 2022, 4:01:41 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.33% · Oct 27, 2026

Projects and upstream resources

[v4l2loopback][Source-reported homepage]

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 / release	Package	Version	Status	Source
Debiantrixie	v4l2loopback	`0.12.7-1`	FixedDistribution-reported fixed boundary	[CVE-2022-2652]
Debiantrixie	v4l2loopback	`0.15.0-2`	Fixed	[CVE-2022-2652]
Debiansid	v4l2loopback	`0.12.7-1`	FixedDistribution-reported fixed boundary	[CVE-2022-2652]
Debiansid	v4l2loopback	`0.15.4-2`	Fixed	[CVE-2022-2652]
Opensuseleap 15.4	v4l2loopback	`0.12.5-lp154.3.3.1`	Fixed	[OPENSUSE-SU-2022:10159-1]Feb 4, 2026, 3:17:45 AM UTC
Opensuseleap 15.3	v4l2loopback	`0.12.5-lp153.2.5.1`	Fixed	[OPENSUSE-SU-2022:10160-1]Feb 4, 2026, 4:08:57 AM UTC
Debianforky	v4l2loopback	`0.12.7-1`	FixedDistribution-reported fixed boundary	[CVE-2022-2652]
Debianforky	v4l2loopback	`0.15.4-2`	Fixed	[CVE-2022-2652]
Debianbookworm	v4l2loopback	`0.12.7-1`	FixedDistribution-reported fixed boundary	[CVE-2022-2652]
Debianbookworm	v4l2loopback	`0.12.7-2`	Fixed	[CVE-2022-2652]

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
Debianbookworm	v4l2loopback	`0.12.7-1`	FixedDistribution-reported fixed boundary	[CVE-2022-2652]
Debianbookworm	v4l2loopback	`0.12.7-2`	Fixed	[CVE-2022-2652]
Debianforky	v4l2loopback	`0.12.7-1`	FixedDistribution-reported fixed boundary	[CVE-2022-2652]
Debianforky	v4l2loopback	`0.15.4-2`	Fixed	[CVE-2022-2652]
Debiansid	v4l2loopback	`0.12.7-1`	FixedDistribution-reported fixed boundary	[CVE-2022-2652]
Debiansid	v4l2loopback	`0.15.4-2`	Fixed	[CVE-2022-2652]
Debiantrixie	v4l2loopback	`0.12.7-1`	FixedDistribution-reported fixed boundary	[CVE-2022-2652]
Debiantrixie	v4l2loopback	`0.15.0-2`	Fixed	[CVE-2022-2652]
Opensuseleap 15.3	v4l2loopback	`0.12.5-lp153.2.5.1`	Fixed	[OPENSUSE-SU-2022:10160-1]Feb 4, 2026, 4:08:57 AM UTC
Opensuseleap 15.4	v4l2loopback	`0.12.5-lp154.3.3.1`	Fixed	[OPENSUSE-SU-2022:10159-1]Feb 4, 2026, 3:17:45 AM UTC

Original provider fields

{
  "package_releases": [
    {
      "name": "v4l2loopback",
      "status": "fixed",
      "release": "sid",
      "version": "0.15.4-2"
    },
    {
      "name": "v4l2loopback",
      "status": "fixed",
      "release": "forky",
      "version": "0.15.4-2"
    },
    {
      "name": "v4l2loopback",
      "status": "fixed",
      "release": "trixie",
      "version": "0.15.0-2"
    },
    {
      "name": "v4l2loopback",
      "status": "fixed",
      "release": "bookworm",
      "version": "0.12.7-2"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1016685,
      "name": "v4l2loopback",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": "0.12.7-1"
    },
    {
      "bug": 1016685,
      "name": "v4l2loopback",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "unimportant",
      "fixed_version": "0.12.7-1"
    },
    {
      "bug": 1016685,
      "name": "v4l2loopback",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": "0.12.7-1"
    },
    {
      "bug": 1016685,
      "name": "v4l2loopback",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "0.12.7-1"
    }
  ],
  "distribution_packages": [
    {
      "name": "v4l2loopback",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12.5-lp153.2.5.1"
            }
          ]
        }
      ],
      "release": "leap 15.3",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/openSUSE-SU-2022:10160-1",
      "fixed_version": "0.12.5-lp153.2.5.1",
      "provider_source": "pypi",
      "provider_record_id": "OPENSUSE-SU-2022:10160-1",
      "provider_updated_at": "2026-02-04T04:08:57.979579Z"
    },
    {
      "name": "v4l2loopback",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12.5-lp154.3.3.1"
            }
          ]
        }
      ],
      "release": "leap 15.4",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/openSUSE-SU-2022:10159-1",
      "fixed_version": "0.12.5-lp154.3.3.1",
      "provider_source": "pypi",
      "provider_record_id": "OPENSUSE-SU-2022:10159-1",
      "provider_updated_at": "2026-02-04T03:17:45.329279Z"
    }
  ]
}

[Debian bug #1016685]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[v4l2loopback-dkms]Unknown
Source package: [v4l2loopback]
Details (4)
- 0.12.7-2 · all · bookworm
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
- 0.12.7-2 · all · bookworm
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
- 0.13.2-1~bpo12+1 · all · bookworm-backports
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
- 0.13.2-1~bpo12+1 · all · bookworm-backports
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
[v4l2loopback-source]Unknown
Source package: [v4l2loopback]
Details (4)
- 0.12.7-2 · all · bookworm
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
- 0.12.7-2 · all · bookworm
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
- 0.13.2-1~bpo12+1 · all · bookworm-backports
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
- 0.13.2-1~bpo12+1 · all · bookworm-backports
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
[v4l2loopback-utils]Unknown
Source package: [v4l2loopback]
Details (4)
- 0.12.7-2 · all · bookworm
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
- 0.12.7-2 · all · bookworm
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
- 0.13.2-1~bpo12+1 · amd64 · bookworm-backports
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm
- 0.13.2-1~bpo12+1 · arm64 · bookworm-backports
  Fixed · Fixed: 0.12.7-1
  dsa · v4l2loopback · debian · bookworm

Observed: Oct 23, 2026, 6:25:18 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]