{"id":"CVE-2009-4639","aliases":["DEBIAN-CVE-2009-4639","EUVD-2009-4604","GHSA-4x29-4984-2qcp"],"status":"published","title":"The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a...","description":"The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02993,"percentile":0.87431,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-189"],"published":"2010-02-10T02:00:00Z","modified":"2026-10-23T17:47:48Z","fixes":[{"ecosystem":"Debian:12","package":"ffmpeg","fixed_in":["7:2.4.1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"ffmpeg","fixed_in":["7:2.4.1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"ffmpeg","fixed_in":["7:2.4.1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"ffmpeg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:2.4.1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"ffmpeg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:2.4.1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"ffmpeg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:2.4.1-1"}]}]}],"products":[{"vendor":"ffmpeg","product":"ffmpeg"}],"references":[{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:088","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/36805","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/bid/36465","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://secunia.com/advisories/39482","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://roundup.ffmpeg.org/roundup/ffmpeg/issue1240","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:061","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"https://roundup.ffmpeg.org/roundup/ffmpeg/issue1245","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:112","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"http://scarybeastsecurity.blogspot.com/2009/09/patching-ffmpeg-into-shape.html","tags":["x_refsource_MISC","x_transferred","Exploit","evidence"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:059","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2011/1241","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:060","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"http://www.ubuntu.com/usn/USN-931-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2010/0935","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-4639"},{"url":"https://github.com/advisories/GHSA-4x29-4984-2qcp"},{"url":"https://security-tracker.debian.org/tracker/CVE-2009-4639","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2009-4639","description":"The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.","status":"published","published":"2010-02-10T02:00:00Z","modified":"2024-08-07T07:08:38.126Z","updated_at":"2026-11-02T14:33:24.451733Z"}],"euvd":[{"id":"EUVD-2009-4604","description":"The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.","status":"published","published":"2010-02-10T02:00:00Z","modified":"2024-08-07T07:08:38Z","updated_at":"2026-11-03T01:39:09.066496Z"}],"ghsa":[{"id":"GHSA-4x29-4984-2qcp","title":"The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a...","description":"The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.","status":"published","published":"2022-05-02T03:56:38Z","modified":"2023-01-31T05:09:12Z","updated_at":"2026-11-02T14:49:29.970425Z"}],"nvd":[{"id":"CVE-2009-4639","description":"The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.","status":"published","published":"2010-02-10T02:30:00.733Z","modified":"2026-06-16T23:14:04.623Z","cvss":[{"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":"2026-11-02T14:01:38.33745Z"}],"osv":[{"id":"CVE-2009-4639","description":"The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.","status":"published","published":"2010-02-10T02:30:00Z","modified":"2026-04-10T03:41:02.046147Z","updated_at":"2026-11-02T15:43:57.714116Z"},{"id":"DEBIAN-CVE-2009-4639","description":"The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.","status":"published","published":"2010-02-10T02:30:00.733Z","modified":"2026-10-23T17:47:48.027731865Z","updated_at":"2026-11-02T15:45:24.013654Z"}]}}