{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:ffmpeg:ffmpeg:2.8:*:*:*:*:*:*:*",
              "cpe:2.3:a:ffmpeg:ffmpeg:4.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "2.8"
              },
              {
                "last_affected": "2.8"
              },
              {
                "introduced": "4.0"
              },
              {
                "last_affected": "4.0"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "58142a27ea96bf9246586a91a82db85e37646933"
            },
            {
              "last_affected": "ace829cb45cff530b8a0aed6adf18f329d7a98f6"
            }
          ],
          "repo": "https://git.ffmpeg.org/ffmpeg.git",
          "type": "GIT"
        }
      ],
      "versions": [
        "2.8",
        "4.0"
      ]
    },
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:ffmpeg:ffmpeg:2.8:*:*:*:*:*:*:*",
              "cpe:2.3:a:ffmpeg:ffmpeg:4.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "2.8"
              },
              {
                "last_affected": "2.8"
              },
              {
                "introduced": "4.0"
              },
              {
                "last_affected": "4.0"
              }
            ],
            "source": [
              "CPE_STRING",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "58142a27ea96bf9246586a91a82db85e37646933"
            },
            {
              "last_affected": "ace829cb45cff530b8a0aed6adf18f329d7a98f6"
            },
            {
              "fixed": "6bbef938839adc55e8e048bc9cc2e0fafe2064df"
            },
            {
              "fixed": "e1182fac1afba92a4975917823a5f644bee7e6e8"
            }
          ],
          "repo": "https://github.com/ffmpeg/ffmpeg",
          "type": "GIT"
        }
      ],
      "versions": [
        "2.8",
        "4.0"
      ]
    }
  ],
  "database_specific": {
    "unresolved_ranges": [
      {
        "cpes": [
          "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
        ],
        "extracted_events": [
          {
            "introduced": "9.0"
          },
          {
            "last_affected": "9.0"
          }
        ],
        "source": "CPE_STRING",
        "vendor_product": "debian:debian_linux"
      }
    ]
  },
  "details": "An improper integer type in the mpeg4_encode_gop_header function in libavcodec/mpeg4videoenc.c in FFmpeg 2.8 and 4.0 may trigger an assertion violation while converting a crafted AVI file to MPEG4, leading to a denial of service.",
  "id": "CVE-2018-12458",
  "modified": "2026-08-17T03:36:38.881673676Z",
  "published": "2018-06-15T15:29:00.217Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.debian.org/security/2018/dsa-4249"
    },
    {
      "type": "FIX",
      "url": "https://github.com/FFmpeg/FFmpeg/commit/6bbef938839adc55e8e048bc9cc2e0fafe2064df"
    },
    {
      "type": "FIX",
      "url": "https://github.com/FFmpeg/FFmpeg/commit/e1182fac1afba92a4975917823a5f644bee7e6e8"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}