{"id":"CVE-2016-9826","aliases":["EUVD-2016-10626","GHSA-m9x6-mvcx-hq5h","UBUNTU-CVE-2016-9826"],"status":"published","title":"libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash...","description":"libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/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":0.00996,"percentile":0.62929,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-189"],"published":"2017-03-01T15:00:00Z","modified":"2026-10-24T10:30:36Z","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":"http://www.securityfocus.com/bid/94732","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-9826"},{"url":"https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer","tags":["report"]},{"url":"https://github.com/advisories/GHSA-m9x6-mvcx-hq5h"},{"url":"https://ubuntu.com/security/CVE-2016-9826","tags":["report"]},{"url":"https://github.com/asarubbo/poc/blob/master/00041-libav-leftshift-ituh263dec_c","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-9826","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2016-9826","description":"libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.","status":"published","published":"2017-03-01T15:00:00Z","modified":"2024-08-06T02:59:03.519Z","updated_at":"2026-11-02T14:33:32.103757Z"}],"euvd":[{"id":"EUVD-2016-10626","description":"libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.","status":"published","published":"2017-03-01T15:00:00Z","modified":"2024-08-06T02:59:03Z","updated_at":"2026-11-03T02:22:26.376959Z"}],"ghsa":[{"id":"GHSA-m9x6-mvcx-hq5h","title":"libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash...","description":"libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.","status":"published","published":"2022-05-17T02:57:05Z","modified":"2025-04-20T03:33:28Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:01:40.757238Z"}],"nvd":[{"id":"CVE-2016-9826","description":"libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.","status":"published","published":"2017-03-01T15:59:00.617Z","modified":"2026-06-17T00:56:36.947Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/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-189"],"updated_at":"2026-11-02T14:03:37.238712Z"}],"osv":[{"id":"CVE-2016-9826","description":"libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.","status":"published","published":"2017-03-01T15:59:00.617Z","modified":"2026-10-24T10:30:36.7571644Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:03.472693Z"},{"id":"UBUNTU-CVE-2016-9826","description":"libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.","status":"published","published":"2017-03-01T15:59:00Z","modified":"2026-04-22T11:06:16.336105Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:13.356796Z"}]}}