{"schemaVersion":3,"id":"MGASA-2021-0495","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated ffmpeg packages fix security vulnerability\n\nFFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/aacpsy.c,\nwhich allows a remote malicious user to cause a Denial of Service.\n(CVE-2020-20446)\n\nFFmpeg 4.2 is affected by null pointer dereference passed as argument to\nlibavformat/aviobuf.c, which could cause a Denial of Service.\n(CVE-2020-20450)\n\nFFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/aaccoder,\nwhich allows a remote malicious user to cause a Denial of Service.\n(CVE-2020-20453)\n\nBuffer Overflow vulnerability exists in FFmpeg 4.1 via apng_do_inverse_blend\nin libavcodec/pngenc.c, which could let a remote malicious user cause a\nDenial of Service. (CVE-2020-21041)\n\nBuffer Overflow vulnerability in FFmpeg 4.2 in mov_write_video_tag due to\nthe out of bounds in libavformat/movenc.c, which could let a remote\nmalicious user obtain sensitive information, cause a Denial of Service, or\nexecute arbitrary code. (CVE-2020-22015)\n\nBuffer Overflow vulnerability in FFmpeg 4.2 at convolution_y_10bit in\nlibavfilter/vf_vmafmotion.c, which could let a remote malicious user cause\na Denial of Service. (CVE-2020-22019)\n\nBuffer Overflow vulnerability in FFmpeg 4.2 at filter_edges function in\nlibavfilter/vf_yadif.c, which could let a remote malicious user cause a\nDenial of Service. (CVE-2020-22021)\n\nA heap-based Buffer Overflow Vulnerability exists FFmpeg 4.2 at\nlibavfilter/vf_vmafmotion.c in convolution_y_8bit, which could let a remote\nmalicious user cause a Denial of Service. (CVE-2020-22033)\n\nA Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak\nin avcodec_alloc_context3 at options.c. (CVE-2020-22037)\n\nA Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak\nin the ff_v4l2_m2m_create_context function in v4l2_m2m.c. (CVE-2020-22038)\n\nA Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak\nis affected by: memory leak in the link_filter_inouts function in\nlibavfilter/graphparser.c. (CVE-2020-22042)\n\nlibavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the\ninit_vlc function, a similar issue to CVE-2013-0868. (CVE-2021-38114)\n\nadts_decode_extradata in libavformat/adtsenc.c in FFmpeg 4.4 does not check\nthe init_get_bits return value, which is a necessary step because the second\nargument to init_get_bits can be crafted. (CVE-2021-38171)\n\nFFmpeg version (git commit de8e6e67e7523e48bb27ac224a0b446df05e1640) suffers\nfrom a an assertion failure at src/libavutil/mathematics.c. (CVE-2021-38291)","dates":{"published":"2021-10-29T19:32:22.000Z","modified":"2026-04-16T04:43:32.812Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"mageia","product":"ffmpeg","name":"ffmpeg","label":"ffmpeg","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/ffmpeg","purlType":"rpm","versions":[{"text":"< 4.3.3-3.mga8","noFixRecorded":false,"fixedIn":null},{"text":"< 4.3.3-3.mga8.tainted","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.3.3-3.mga8 | < 4.3.3-3.mga8.tainted","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2021-0495.html","label":"advisories.mageia.org/MGASA-2021-0495.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=29256","label":"bugs.mageia.org/show_bug.cgi?id=29256","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"http://ffmpeg.org/security.html","label":"ffmpeg.org/security.html","hostname":"ffmpeg.org","tags":["WEB"]},{"url":"https://lists.suse.com/pipermail/sle-security-updates/2021-July/009140.html","label":"lists.suse.com/pipermail/sle-security-updates/2021-July/009140.html","hostname":"lists.suse.com","tags":["WEB"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/MM55YS6XXAKFK3J35CDODMYMAZO6JX3S/","label":"lists.opensuse.org/archives/…","hostname":"lists.opensuse.org","tags":["WEB"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RHYNSW2TAJSSTZPOYXQXGZDI6LYBWIT4/","label":"lists.opensuse.org/archives/…","hostname":"lists.opensuse.org","tags":["WEB"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/UQYGWX5BP3LA5ULPF6C7O7URBPXWRNFJ/","label":"lists.opensuse.org/archives/…","hostname":"lists.opensuse.org","tags":["WEB"]},{"url":"https://www.debian.org/security/2021/dsa-4990","label":"www.debian.org/security/2021/dsa-4990","hostname":"www.debian.org","tags":["WEB"]}],"lineage":{"upstream":["CVE-2020-20446","CVE-2020-20450","CVE-2020-20453","CVE-2020-21041","CVE-2020-22015","CVE-2020-22019","CVE-2020-22021","CVE-2020-22033","CVE-2020-22037","CVE-2020-22038","CVE-2020-22042","CVE-2021-38114","CVE-2021-38171","CVE-2021-38291"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-10-29T19:32:22.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-16T04:43:32.812Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T00:08:44.872Z","stale":false,"partial":false}}