{"id":"CVE-2020-20896","details":"An issue was discovered in function latm_write_packet in libavformat/latmenc.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts due to a Null pointer dereference.","modified":"2026-08-16T08:40:19.784519Z","published":"2021-09-20T16:15:09.167Z","related":["SUSE-SU-2021:3521-1","SUSE-SU-2023:0005-1","openSUSE-SU-2021:3521-1"],"references":[{"type":"REPORT","url":"https://trac.ffmpeg.org/ticket/8273"},{"type":"FIX","url":"https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/dd01947397b98e94c3f2a79d5820aaf4594f4d3b"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.ffmpeg.org/ffmpeg.git","events":[{"introduced":"0"},{"fixed":"dd01947397b98e94c3f2a79d5820aaf4594f4d3b"}],"database_specific":{"source":"REFERENCES"}}],"versions":["n4.3-dev","n4.2-dev","n4.1-dev","n3.5-dev","n3.4-dev","n3.3-dev","n3.2-dev","n3.1-dev","n2.9-dev","n2.8-dev","n2.7-dev","n2.6-dev","n2.5-dev","n2.4-dev","n2.3-dev","n2.2-dev","n2.0","n2.1-dev","n1.3-dev","n1.2-dev","n1.1-dev","n0.12-dev","n0.11-dev","n0.8","N"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-20896.json","vanir_signatures_modified":"2026-08-16T08:40:19Z","vanir_signatures":[{"source":"https://git.ffmpeg.org/ffmpeg.git@dd01947397b98e94c3f2a79d5820aaf4594f4d3b","target":{"file":"libavformat/latmenc.c"},"deprecated":false,"digest":{"line_hashes":["289650723740617240047631253826052269792","50140283604854964284110220465205697211","129133804975535101787841081332085239044","258251669415981779699188875724056740232"],"threshold":0.9},"id":"CVE-2020-20896-11f4b120","signature_type":"Line","signature_version":"v1"},{"source":"https://git.ffmpeg.org/ffmpeg.git@dd01947397b98e94c3f2a79d5820aaf4594f4d3b","target":{"file":"libavformat/latmenc.c","function":"latm_write_packet"},"deprecated":false,"digest":{"function_hash":"233672656897557032709782832246145849603","length":1772},"id":"CVE-2020-20896-e21d234a","signature_type":"Function","signature_version":"v1"}]}},{"ranges":[{"type":"GIT","repo":"https://github.com/ffmpeg/ffmpeg","events":[{"introduced":"1529dfb73a5157dcb8762051ec4c8d8341762478"},{"last_affected":"1529dfb73a5157dcb8762051ec4c8d8341762478"}],"database_specific":{"cpe":"cpe:2.3:a:ffmpeg:ffmpeg:4.2.1:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.2.1"},{"last_affected":"4.2.1"}],"source":"CPE_STRING"}}],"versions":["4.2.1","n4.2.1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-20896.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}