{"id":"CVE-2017-18243","aliases":["EUVD-2017-9374","GHSA-x6hc-7fjr-v44g","UBUNTU-CVE-2017-18243"],"status":"published","title":"The unpack_parse_unit function in libavcodec/dirac_parser.c in Libav 12.2 allows remote attackers...","description":"The unpack_parse_unit function in libavcodec/dirac_parser.c in Libav 12.2 allows remote attackers to cause a denial of service (segmentation fault) via a crafted file.","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":"2026-11-08","score":0.00994,"percentile":0.62881,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2018-03-22T21:00:00Z","modified":"2026-06-17T01:12:28Z","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=1088","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18243"},{"url":"https://github.com/advisories/GHSA-x6hc-7fjr-v44g"},{"url":"https://ubuntu.com/security/CVE-2017-18243","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-18243","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-18243","description":"The unpack_parse_unit function in libavcodec/dirac_parser.c in Libav 12.2 allows remote attackers to cause a denial of service (segmentation fault) via a crafted file.","status":"published","published":"2018-03-22T21:00:00Z","modified":"2024-09-17T03:33:57.793Z","updated_at":"2026-11-02T14:33:22.064284Z"}],"euvd":[{"id":"EUVD-2017-9374","description":"The unpack_parse_unit function in libavcodec/dirac_parser.c in Libav 12.2 allows remote attackers to cause a denial of service (segmentation fault) via a crafted file.","status":"published","published":"2018-03-22T21:00:00Z","modified":"2024-09-17T03:33:57Z","updated_at":"2026-11-03T00:28:30.770637Z"}],"ghsa":[{"id":"GHSA-x6hc-7fjr-v44g","title":"The unpack_parse_unit function in libavcodec/dirac_parser.c in Libav 12.2 allows remote attackers...","description":"The unpack_parse_unit function in libavcodec/dirac_parser.c in Libav 12.2 allows remote attackers to cause a denial of service (segmentation fault) via a crafted file.","status":"published","published":"2022-05-14T03:31:07Z","modified":"2023-02-02T05:08:01Z","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-119"],"updated_at":"2026-11-02T14:52:38.632929Z"}],"nvd":[{"id":"CVE-2017-18243","description":"The unpack_parse_unit function in libavcodec/dirac_parser.c in Libav 12.2 allows remote attackers to cause a denial of service (segmentation fault) via a crafted file.","status":"published","published":"2018-03-22T21:29:00.383Z","modified":"2026-06-17T01:12:28.097Z","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-119"],"updated_at":"2026-11-02T14:04:17.032862Z"}],"osv":[{"id":"UBUNTU-CVE-2017-18243","description":"The unpack_parse_unit function in libavcodec/dirac_parser.c in Libav 12.2 allows remote attackers to cause a denial of service (segmentation fault) via a crafted file.","status":"published","published":"2018-03-22T21:29:00Z","modified":"2026-04-22T11:22:11.444637Z","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":"2026-11-02T15:54:14.977781Z"}]}}