Security advisory

{
  "id": "4060064132ee39029fa01a16ff34e394809ac4da7d0a3ce2084fb99b336aa0ea",
  "url": "https://osv.dev/vulnerability/CVE-2020-35521",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-35521",
    "summary": "A flaw was found in libtiff. Due to a memory allocation failure in tif_read.c, a crafted TIFF file can lead to an abort, resulting in denial of service.",
    "evidence": "osv:CVE-2020-35521",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-35521",
      "aliases": [
        "CVE-2020-35521"
      ],
      "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://gitlab.com/libtiff/libtiff",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4862b0d7bcc786304ff4e8c31e8d5ccfb868fb99"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.1.0",
            "v4.0.10",
            "v4.0.9",
            "v4.0.8",
            "v4.0.7",
            "v4.0.6",
            "v4.0.5",
            "v4.0.4",
            "v4.0.4beta",
            "v4.0.3",
            "v4.0.2",
            "v4.0.1",
            "v4.0.0",
            "v4.0.0beta7",
            "v4.0.0alpha6",
            "v4.0.0alpha5",
            "v4.0.0alpha4",
            "v4.0.0alpha",
            "v3.8.2",
            "v3.8.1",
            "v3.8.0",
            "v3.7.4",
            "v3.7.3",
            "v3.7.2",
            "v3.7.1",
            "v3.7.0",
            "v3.7.0beta2",
            "v3.7.0beta",
            "v3.7.0alpha",
            "v3.6.1",
            "v3.6.0",
            "v3.6.0beta2",
            "v3.5.7",
            "v3.5.5",
            "v3.5.4",
            "v3.5.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35521.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:03.538832009Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/",
        "https://security.gentoo.org/glsa/202104-06",
        "https://security.netapp.com/advisory/ntap-20210521-0009/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1932034"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "libtiff:libtiff",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "4.2.0"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "33"
                  },
                  {
                    "last_affected": "33"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:enterprise_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  },
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-35521",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440287,
  "published_at": "2021-03-09T20:15:12.773+00:00"
}