Security advisory

{
  "id": "91f30778b64a266dce56355e32da3b7f105eb9cc7504bda46fe00b7eb183c60c",
  "url": "https://osv.dev/vulnerability/CVE-2021-32289",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-32289",
    "summary": "An issue was discovered in heif through through v3.6.2. A NULL pointer dereference exists in the function convertByteStreamToRBSP() located in nalutil.cpp. It allows an attacker to cause Denial of Service.",
    "evidence": "osv:CVE-2021-32289",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-32289",
      "aliases": [
        "CVE-2021-32289"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nokiatech/heif",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "bdac2fc9c66d8c1e8994eaf81f1a5db116b863ab"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nokia:heif:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.6.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.6.2",
            "v3.6.1",
            "v3.6.0",
            "v3.5.0",
            "v3.4.0",
            "v3.3.1",
            "v3.3.0",
            "v3.2.1",
            "v3.2",
            "v3.1",
            "v3.0",
            "v2.0",
            "v1.00"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32289.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:48.552749021Z",
      "provider": "osv",
      "references": [
        "https://github.com/nokiatech/heif/issues/85"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-32289",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384652,
  "published_at": "2021-09-20T16:15:10.87+00:00"
}