Security advisory

{
  "id": "17453bd098d49167f614fd1a1afbb106170d10fbb67923e46e627ad2346ba622",
  "url": "https://osv.dev/vulnerability/CVE-2021-20303",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-20303",
    "summary": "A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.",
    "evidence": "osv:CVE-2021-20303",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-20303",
      "aliases": [
        "CVE-2021-20303"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/AcademySoftwareFoundation/openexr",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1899a456cbafb213c4a53c35eb3203296f92e503"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.5.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.5.3",
            "v2.5.2",
            "v2.5.1",
            "v2.5.0",
            "v2.4.0",
            "v2.4.0-beta.1",
            "v2.3.0",
            "v2.1.0",
            "v2.0.1",
            "v2.0.0.GM",
            "v2.0.0",
            "v1.7.1",
            "OPENEXR_1_0_4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20303.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/academysoftwarefoundation/openexr",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1899a456cbafb213c4a53c35eb3203296f92e503"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.5.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.5.3",
            "v2.5.2",
            "v2.5.1",
            "v2.5.0",
            "v2.4.0",
            "v2.4.0-beta.1",
            "v2.3.0",
            "v2.1.0",
            "v2.0.1",
            "v2.0.0.GM",
            "v2.0.0",
            "v1.7.1",
            "OPENEXR_1_0_4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20303.json"
          }
        }
      ],
      "modified": "2026-10-24T10:51:23.825450523Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25505",
        "https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1939151",
        "https://github.com/AcademySoftwareFoundation/openexr/pull/831"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-20303",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442586,
  "published_at": "2022-03-04T18:15:07.993+00:00"
}