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clamav — security advisory

Type: advisorySources: OSVAdvisory ID: ALPINE-CVE-2022-20771

On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in the TIFF file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.

Products
clamav
Affected versions
Not specified
Fixed versions
0.103.6-r0
CVEs
CVE-2022-20771
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 14:09 UTC · Revision 1

Source evidence

ALPINE-CVE-2022-20771

core-osv · Original source

Published 4 May 2022, 17:15 UTC

On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in the TIFF file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.

osv:ALPINE-CVE-2022-20771

clamav

Fixed versions: 0.103.6-r0

clamav

Fixed versions: 0.103.6-r0

Complete source record
{
  "id": "b899a64888067d132e54d65617c42dfdd97fc03e2fc24470171460450f989450",
  "url": "https://osv.dev/vulnerability/ALPINE-CVE-2022-20771",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALPINE-CVE-2022-20771",
    "summary": "On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in the TIFF file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.",
    "evidence": "osv:ALPINE-CVE-2022-20771",
    "products": [
      {
        "name": {
          "value": "clamav",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.103.6-r0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "clamav",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.103.6-r0",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "ALPINE-CVE-2022-20771",
      "aliases": [
        "ALPINE-CVE-2022-20771"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0.104.0"
                },
                {
                  "fixed": "0.103.6-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "clamav",
            "purl": "pkg:apk/alpine/clamav?arch=source",
            "ecosystem": "Alpine:v3.12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-20771.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0.104.0"
                },
                {
                  "fixed": "0.103.6-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "clamav",
            "purl": "pkg:apk/alpine/clamav?arch=source",
            "ecosystem": "Alpine:v3.13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-20771.json"
          },
          "ecosystem_specific": {}
        }
      ],
      "modified": "2026-10-15T07:17:54.156882125Z",
      "provider": "osv",
      "upstream": [
        "CVE-2022-20771"
      ],
      "references": [
        "https://security.alpinelinux.org/vuln/CVE-2022-20771"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2022-20771",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 321656,
  "published_at": "2022-05-04T17:15:08.44+00:00"
}