{"schemaVersion":3,"id":"CVE-2020-22046","aliases":["UBUNTU-CVE-2020-22046","DEBIAN-CVE-2020-22046","openSUSE-SU-2024:12817-1"],"status":"published","duplicateOf":null,"title":null,"description":"A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the avpriv_float_dsp_allocl function in libavutil/float_dsp.c.","dates":{"published":"2021-06-02T15:10:23.000Z","modified":"2024-08-04T14:51:10.485Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4.3,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01021,"percentile":0.62843,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01021},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01021,"percentile":0.62843}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01021,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01021,"percentile":0.62843}]},"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":[{"id":"REF_1B46BC61B805971F","name":"Exploit Reference (trac.ffmpeg.org)","source":"reference","url":"https://trac.ffmpeg.org/ticket/8294","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime","description":"The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.","type":"weakness","status":"Draft","abstraction":"Variant","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/401.html"}],"affected":[{"vendor":"debian","product":"ffmpeg","name":"ffmpeg","label":"ffmpeg","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/ffmpeg","purlType":"deb","versions":[{"text":"< 7:4.3-2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7:4.3-2","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"ffmpeg","name":"ffmpeg","label":"ffmpeg","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/ffmpeg","purlType":"deb","versions":[{"text":"< 7:2.8.17-0ubuntu0.1+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 7:4.2.4-1ubuntu0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7:2.8.17-0ubuntu0.1+esm3 | < 7:4.2.4-1ubuntu0.1","eol":null,"hubHref":null},{"vendor":"debian","product":"debian_linux","name":"debian linux","label":"debian_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"9.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"9.0","eol":{"isEol":true,"eolDate":"2022-07-01T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"9","label":"9 (Stretch)","eolFrom":"2022-07-01T00:00:00.000Z","isLts":false,"isMaintained":true,"latestVersion":"9.13"},"product":{"name":"debian","label":"Debian","category":"os"}},"hubHref":"/vendor/debian/debian_linux"},{"vendor":"ffmpeg","product":"ffmpeg","name":"ffmpeg","label":"ffmpeg","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"4.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"4.2","eol":{"isEol":true,"eolDate":"2026-06-21T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"4.2","label":"4.2 'Ada'","eolFrom":"2026-06-21T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":"4.2.11"},"product":{"name":"ffmpeg","label":"FFmpeg","category":"framework"}},"hubHref":"/vendor/ffmpeg/ffmpeg"},{"vendor":"opensuse","product":"ffmpeg-6&distro=openSUSE Tumbleweed","name":"ffmpeg-6","label":"ffmpeg-6&distro=openSUSE Tumbleweed","ecosystem":"openSUSE","cpePart":null,"purl":"pkg:rpm/opensuse/ffmpeg-6&distro=openSUSE Tumbleweed","purlType":"rpm","versions":[{"text":"< 6.0-1.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.0-1.1","eol":null,"hubHref":null}],"affectedCount":5,"eol":{"hasEol":true,"count":2},"references":[{"url":"https://trac.ffmpeg.org/ticket/8294","label":"trac.ffmpeg.org/ticket/8294","hostname":"trac.ffmpeg.org","tags":["X Refsource MISC","REPORT","Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html","label":"lists.debian.org/debian-lts-announce/2021/11/msg00012.html","hostname":"lists.debian.org","tags":["Mailing List","X Refsource MLIST","Third Party Advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-22046","label":"ubuntu.com/security/CVE-2020-22046","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-5167-1","label":"ubuntu.com/security/notices/USN-5167-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-22046","label":"www.cve.org/CVERecord?id=CVE-2020-22046","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-22046","label":"security-tracker.debian.org/tracker/CVE-2020-22046","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2020-22046","label":"www.suse.com/security/cve/CVE-2020-22046","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":[],"downstream":["DLA-2818-1","OPENSUSE-SU-2021:2919-1","OPENSUSE-SU-2024:10754-1","OPENSUSE-SU-2024:13889-1","SUSE-SU-2021:2919-1","SUSE-SU-2021:2929-1","SUSE-SU-2025:0958-1","USN-5167-1"],"duplicates":[],"related":["OPENSUSE-SU-2021:2919-1","OPENSUSE-SU-2024:10754-1","OPENSUSE-SU-2024:13889-1","SUSE-SU-2021:2919-1","SUSE-SU-2021:2929-1","SUSE-SU-2025:0958-1","USN-5167-1"]},"timeline":[{"kind":"published","date":"2021-06-02T15:10:23.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T14:51:10.485Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":36,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T17:39:38.464Z","stale":false,"partial":false}}