Security advisory

{
  "id": "56d090f1ff070a171af99626d4039c9fd827e685d087d1444eea997d7713deb7",
  "url": "https://osv.dev/vulnerability/CVE-2017-14171",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-14171",
    "summary": "In libavformat/nsvdec.c in FFmpeg 2.4 and 3.3.3, a DoS in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted NSV file, which claims a large \"table_entries_used\" field in the header but does not contain sufficient backing data, is provided, the loop over 'table_entries_used' would consume huge CPU resources, since there is no EOF check inside the loop.",
    "evidence": "osv:CVE-2017-14171",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-14171",
      "aliases": [
        "CVE-2017-14171"
      ],
      "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://git.ffmpeg.org/ffmpeg.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9079c70d2095643af6954001d0627445650b85a6"
                },
                {
                  "last_affected": "9079c70d2095643af6954001d0627445650b85a6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:3.3.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.3.3"
                      },
                      {
                        "last_affected": "3.3.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.3.3",
            "n3.3.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-14171.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/ffmpeg/ffmpeg",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9079c70d2095643af6954001d0627445650b85a6"
                },
                {
                  "last_affected": "9079c70d2095643af6954001d0627445650b85a6"
                },
                {
                  "fixed": "c24bcb553650b91e9eff15ef6e54ca73de2453b7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:3.3.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.3.3"
                      },
                      {
                        "last_affected": "3.3.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c24bcb553650b91e9eff15ef6e54ca73de2453b7"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.3.3",
            "n3.3.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-14171.json",
            "vanir_signatures": [
              {
                "id": "CVE-2017-14171-352474f8",
                "digest": {
                  "length": 2647,
                  "function_hash": "272674515123442855883014561025808090604"
                },
                "source": "https://github.com/ffmpeg/ffmpeg/commit/c24bcb553650b91e9eff15ef6e54ca73de2453b7",
                "target": {
                  "file": "libavformat/nsvdec.c",
                  "function": "nsv_parse_NSVf_header"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2017-14171-942d45fb",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "163700682919203254672523376235181754336",
                    "313333650659292797870983492868699436327",
                    "104703890762874859995521295993227348633",
                    "77526834729182645364472304687455895246",
                    "57775010657314048499270854018607517522"
                  ]
                },
                "source": "https://github.com/ffmpeg/ffmpeg/commit/c24bcb553650b91e9eff15ef6e54ca73de2453b7",
                "target": {
                  "file": "libavformat/nsvdec.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-24T14:12:11Z"
          }
        }
      ],
      "modified": "2026-10-24T14:12:11.624953231Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html",
        "https://github.com/FFmpeg/FFmpeg/commit/c24bcb553650b91e9eff15ef6e54ca73de2453b7"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-14171",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 443357,
  "published_at": "2017-09-07T06:29:00.297+00:00"
}