{"id":"CVE-2019-11471","details":"libheif 1.4.0 has a use-after-free in heif::HeifContext::Image::set_alpha_channel in heif_context.h because heif_context.cc mishandles references to non-existing alpha images.","modified":"2026-08-07T14:49:57.448826Z","published":"2019-04-23T14:29:00.697Z","references":[{"type":"FIX","url":"https://github.com/strukturag/libheif/commit/995a4283d8ed2d0d2c1ceb1a577b993df2f0e014"},{"type":"FIX","url":"https://github.com/strukturag/libheif/issues/123"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/strukturag/libheif","events":[{"introduced":"fca25874bb8021dede702bb7023a22af1a8a06ab"},{"last_affected":"fca25874bb8021dede702bb7023a22af1a8a06ab"},{"fixed":"995a4283d8ed2d0d2c1ceb1a577b993df2f0e014"}],"database_specific":{"cpe":"cpe:2.3:a:struktur:libheif:1.4.0:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.4.0"},{"last_affected":"1.4.0"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["1.4.0","v1.4.0"],"database_specific":{"vanir_signatures_modified":"2026-08-07T14:49:57Z","vanir_signatures":[{"signature_version":"v1","source":"https://github.com/strukturag/libheif/commit/995a4283d8ed2d0d2c1ceb1a577b993df2f0e014","target":{"file":"libheif/heif_context.cc"},"deprecated":false,"digest":{"line_hashes":["95260294669190440127728145821624217456","303807190157222396603919287351486898039","4235846168162409445830265275337292217","130048297082083805368811421710562116177"],"threshold":0.9},"id":"CVE-2019-11471-9443186f","signature_type":"Line"},{"signature_version":"v1","source":"https://github.com/strukturag/libheif/commit/995a4283d8ed2d0d2c1ceb1a577b993df2f0e014","target":{"file":"libheif/heif_context.cc","function":"HeifContext::interpret_heif_file"},"deprecated":false,"digest":{"function_hash":"18988048238589524481853342468677268370","length":7451},"id":"CVE-2019-11471-d7dcf1e9","signature_type":"Function"}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11471.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}