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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-16587

A heap-based buffer overflow vulnerability exists in Academy Software Foundation OpenEXR 2.3.0 in chunkOffsetReconstruction in ImfMultiPartInputFile.cpp that can cause a denial of service via a crafted EXR file.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-16587
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 09:33 UTC · Revision 1

Source evidence

CVE-2020-16587

core-osv · Original source

Published 9 Dec 2020, 21:15 UTC

A heap-based buffer overflow vulnerability exists in Academy Software Foundation OpenEXR 2.3.0 in chunkOffsetReconstruction in ImfMultiPartInputFile.cpp that can cause a denial of service via a crafted EXR file.

osv:CVE-2020-16587
Complete source record
{
  "id": "b472db53e28dea59b71e2c8149334ff7cca86644b8016b2f3508533383baf382",
  "url": "https://osv.dev/vulnerability/CVE-2020-16587",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-16587",
    "summary": "A heap-based buffer overflow vulnerability exists in Academy Software Foundation OpenEXR 2.3.0 in chunkOffsetReconstruction in ImfMultiPartInputFile.cpp that can cause a denial of service via a crafted EXR file.",
    "evidence": "osv:CVE-2020-16587",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-16587",
      "aliases": [
        "CVE-2020-16587"
      ],
      "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/AcademySoftwareFoundation/openexr",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0ac2ea34c8f3134148a5df4052e40f155b76f6fb"
                },
                {
                  "last_affected": "0ac2ea34c8f3134148a5df4052e40f155b76f6fb"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openexr:openexr:2.3.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.3.0"
                      },
                      {
                        "last_affected": "2.3.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.3.0",
            "v2.3.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-16587.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/academysoftwarefoundation/openexr",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0ac2ea34c8f3134148a5df4052e40f155b76f6fb"
                },
                {
                  "last_affected": "0ac2ea34c8f3134148a5df4052e40f155b76f6fb"
                },
                {
                  "fixed": "8b5370c688a7362673c3a5256d93695617a4cd9a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openexr:openexr:2.3.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.3.0"
                      },
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                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
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                        "fixed": "8b5370c688a7362673c3a5256d93695617a4cd9a"
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                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.3.0",
            "v2.3.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-16587.json",
            "vanir_signatures": [
              {
                "id": "CVE-2020-16587-2ec0a54b",
                "digest": {
                  "length": 4663,
                  "function_hash": "143967905294990520278655521811818684950"
                },
                "source": "https://github.com/academysoftwarefoundation/openexr/commit/8b5370c688a7362673c3a5256d93695617a4cd9a",
                "target": {
                  "file": "OpenEXR/IlmImf/ImfMultiPartInputFile.cpp",
                  "function": "MultiPartInputFile::Data::chunkOffsetReconstruction"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2020-16587-eec94311",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
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                },
                "source": "https://github.com/academysoftwarefoundation/openexr/commit/8b5370c688a7362673c3a5256d93695617a4cd9a",
                "target": {
                  "file": "OpenEXR/IlmImf/ImfMultiPartInputFile.cpp"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-24T19:11:40Z"
          }
        }
      ],
      "modified": "2026-10-24T19:11:40.085515633Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html",
        "https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html",
        "https://github.com/AcademySoftwareFoundation/openexr/issues/491",
        "https://github.com/AcademySoftwareFoundation/openexr/commit/8b5370c688a7362673c3a5256d93695617a4cd9a"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
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            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
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                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
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                ],
                "source": "CPE_STRING"
              }
            ]
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        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-16587",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 444078,
  "published_at": "2020-12-09T21:15:14.85+00:00"
}