{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0.104.0"
              },
              {
                "fixed": "0.104.3"
              }
            ]
          },
          "events": [
            {
              "introduced": "ba51bf8e644921a1592d2f3d280a2daa924acfd8"
            },
            {
              "fixed": "52edc04710856c5b2d29b29edf7a4eea2e6096c3"
            }
          ],
          "repo": "https://github.com/cisco-talos/clamav",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "A vulnerability in the OLE2 file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device.The vulnerability is due to incorrect use of the realloc function that may result in a double-free. An attacker could exploit this vulnerability by submitting a crafted OLE2 file to be scanned by ClamAV on the affected device. An exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of service condition.",
  "id": "CVE-2022-20803",
  "modified": "2026-04-01T23:08:08.104722115Z",
  "published": "2023-02-17T18:15:11.740Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.gentoo.org/glsa/202310-01"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}