{"id":"CVE-2018-20001","aliases":["EUVD-2018-12579","GHSA-f435-99c6-g2mw","UBUNTU-CVE-2018-20001"],"status":"published","title":"In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called...","description":"In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called from range_decode_bits) in libavcodec/apedec.c that will lead to remote denial of service via crafted input.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.0101,"percentile":0.63312,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2018-12-10T02:00:00Z","modified":"2026-10-24T10:30:19Z","affected":[{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"libav","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6:0.8.7-1ubuntu2","6:9.10-1ubuntu1","6:9.10-1ubuntu2","6:9.10-1ubuntu5","6:9.10-1ubuntu6","6:9.10-1ubuntu7","6:9.11-2ubuntu1","6:9.11-2ubuntu2","6:9.13-0ubuntu0.14.04.1","6:9.14-0ubuntu0.14.04.1","6:9.16-0ubuntu0.14.04.1","6:9.18-0ubuntu0.14.04.1","6:9.20-0ubuntu0.14.04.1","6:9.20-0ubuntu0.14.04.1+esm1"]}],"products":[{"vendor":"libav","product":"libav"}],"references":[{"url":"https://bugzilla.libav.org/show_bug.cgi?id=1141","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20001"},{"url":"https://github.com/advisories/GHSA-f435-99c6-g2mw"},{"url":"https://ubuntu.com/security/CVE-2018-20001","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-20001","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-20001","description":"In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called from range_decode_bits) in libavcodec/apedec.c that will lead to remote denial of service via crafted input.","status":"published","published":"2018-12-10T02:00:00Z","modified":"2024-09-17T01:05:48.618Z","updated_at":"2026-11-02T14:35:00.237825Z"}],"euvd":[{"id":"EUVD-2018-12579","description":"In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called from range_decode_bits) in libavcodec/apedec.c that will lead to remote denial of service via crafted input.","status":"published","published":"2018-12-10T02:00:00Z","modified":"2024-09-17T01:05:48Z","updated_at":"2026-11-03T00:28:53.188643Z"}],"ghsa":[{"id":"GHSA-f435-99c6-g2mw","title":"In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called...","description":"In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called from range_decode_bits) in libavcodec/apedec.c that will lead to remote denial of service via crafted input.","status":"published","published":"2022-05-14T01:43:20Z","modified":"2023-02-02T05:04:34Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:51:54.365671Z"}],"nvd":[{"id":"CVE-2018-20001","description":"In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called from range_decode_bits) in libavcodec/apedec.c that will lead to remote denial of service via crafted input.","status":"published","published":"2018-12-10T02:29:00.327Z","modified":"2026-06-17T01:52:08.72Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:04:49.995593Z"}],"osv":[{"id":"CVE-2018-20001","description":"In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called from range_decode_bits) in libavcodec/apedec.c that will lead to remote denial of service via crafted input.","status":"published","published":"2018-12-10T02:29:00.327Z","modified":"2026-10-24T10:30:19.90279718Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:09.145458Z"},{"id":"UBUNTU-CVE-2018-20001","description":"In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called from range_decode_bits) in libavcodec/apedec.c that will lead to remote denial of service via crafted input.","status":"published","published":"2018-12-10T02:29:00Z","modified":"2026-04-22T11:52:13.714839Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:17.91743Z"}]}}