{"id":"CVE-2021-36692","details":"libjxl v0.3.7 is affected by a Divide By Zero in issue in lib/extras/codec_apng.cc jxl::DecodeImageAPNG(). When encoding a malicous APNG file using cjxl, an attacker can trigger a denial of service.","modified":"2026-08-07T17:27:44.174600Z","published":"2021-08-30T21:15:09.413Z","references":[{"type":"REPORT","url":"https://github.com/libjxl/libjxl/issues/308"},{"type":"FIX","url":"https://github.com/libjxl/libjxl/commit/7dfa400ded53919d986c5d3d23446a09e0cf481b"},{"type":"FIX","url":"https://github.com/libjxl/libjxl/pull/313"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libjxl/libjxl","events":[{"introduced":"9e9bce86164dc4d01c39eeeb3404d6aed85137b2"},{"last_affected":"9e9bce86164dc4d01c39eeeb3404d6aed85137b2"},{"fixed":"7dfa400ded53919d986c5d3d23446a09e0cf481b"}],"database_specific":{"cpe":"cpe:2.3:a:libjxl_project:libjxl:0.3.7:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0.3.7"},{"last_affected":"0.3.7"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["0.3.7","v0.3.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36692.json","vanir_signatures_modified":"2026-08-07T17:27:44Z","vanir_signatures":[{"source":"https://github.com/libjxl/libjxl/commit/7dfa400ded53919d986c5d3d23446a09e0cf481b","target":{"file":"lib/extras/codec_apng.cc"},"deprecated":false,"digest":{"line_hashes":["218996673675454636206971500351580687935","289713015421704113962406939315262015326","151492106284367248620221020173088946544"],"threshold":0.9},"id":"CVE-2021-36692-13120598","signature_type":"Line","signature_version":"v1"},{"target":{"file":"lib/extras/codec_apng.cc","function":"DecodeImageAPNG"},"deprecated":false,"digest":{"function_hash":"83732117007404789023064002931192555137","length":5308},"id":"CVE-2021-36692-77f02abb","signature_type":"Function","signature_version":"v1","source":"https://github.com/libjxl/libjxl/commit/7dfa400ded53919d986c5d3d23446a09e0cf481b"}]}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}