Security advisory

{
  "id": "fd275aa28d5e5d56d8808985b3037c92ea28a3a471595c9c8163a273fcabf2a4",
  "url": "https://osv.dev/vulnerability/CVE-2018-17000",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-17000",
    "summary": "A NULL pointer dereference in the function _TIFFmemcmp at tif_unix.c (called from TIFFWriteDirectoryTagTransferfunction) in LibTIFF 4.0.9 allows an attacker to cause a denial-of-service through a crafted tiff file. This vulnerability can be triggered by the executable tiffcp.",
    "evidence": "osv:CVE-2018-17000",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-17000",
      "aliases": [
        "CVE-2018-17000"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/vadz/libtiff",
              "type": "GIT",
              "events": [
                {
                  "introduced": "636f2684a0faaf9510ae4219f286a53f98f37483"
                },
                {
                  "last_affected": "636f2684a0faaf9510ae4219f286a53f98f37483"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.9"
                      },
                      {
                        "last_affected": "4.0.9"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.0.9",
            "Release-v4-0-9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-17000.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/libtiff/libtiff",
              "type": "GIT",
              "events": [
                {
                  "introduced": "020bd2fd3b4235b2175dafa9633d2b191c50e7cd"
                },
                {
                  "last_affected": "020bd2fd3b4235b2175dafa9633d2b191c50e7cd"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.9"
                      },
                      {
                        "last_affected": "4.0.9"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.0.9",
            "v4.0.9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-17000.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:19.435984343Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2019/02/msg00026.html",
        "https://usn.ubuntu.com/3906-1/",
        "https://www.debian.org/security/2020/dsa-4670"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.04"
                  },
                  {
                    "last_affected": "14.04"
                  },
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  },
                  {
                    "introduced": "18.10"
                  },
                  {
                    "last_affected": "18.10"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-17000",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430022,
  "published_at": "2018-09-13T16:29:01.263+00:00"
}