Security advisory

{
  "id": "789e3edc27bda9541bee252a8c0468914a543feb04486575a07d41013c749ca6",
  "url": "https://osv.dev/vulnerability/CVE-2020-19491",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-19491",
    "summary": "There is an invalid memory access bug in cgif.c that leads to a Segmentation fault in sam2p 0.49.4. A crafted input will lead to a denial of service or possibly unspecified other impact.",
    "evidence": "osv:CVE-2020-19491",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-19491",
      "aliases": [
        "CVE-2020-19491"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pts/sam2p",
              "type": "GIT",
              "events": [
                {
                  "introduced": "02883208a1b6fab503bd367c1acae43133c5ff42"
                },
                {
                  "last_affected": "02883208a1b6fab503bd367c1acae43133c5ff42"
                },
                {
                  "fixed": "1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:sam2p_project:sam2p:0.49.4:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.49.4"
                      },
                      {
                        "last_affected": "0.49.4"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.49.4",
            "v0.49.4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-19491.json",
            "vanir_signatures": [
              {
                "id": "CVE-2020-19491-2c537f53",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "26584005264558608497469863337678664354",
                    "277268880482349854981547270748005376378",
                    "187408893928214441657464376692005425479",
                    "115241181371941928282202310218825599045"
                  ]
                },
                "source": "https://github.com/pts/sam2p/commit/1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73",
                "target": {
                  "file": "cgif.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2020-19491-6045c24c",
                "digest": {
                  "length": 16558,
                  "function_hash": "62284236809577344850796114599691681433"
                },
                "source": "https://github.com/pts/sam2p/commit/1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73",
                "target": {
                  "file": "cgif.c",
                  "function": "DGifOpenFileName"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:52:50Z"
          }
        }
      ],
      "modified": "2026-10-20T13:52:50.436288425Z",
      "provider": "osv",
      "references": [
        "https://github.com/pts/sam2p/commit/1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73",
        "https://github.com/pts/sam2p/issues/67"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-19491",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388340,
  "published_at": "2021-07-21T18:15:09.03+00:00"
}