{"id":"CVE-2021-20296","details":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","modified":"2026-03-15T13:45:11.388052Z","published":"2021-04-01T14:15:13.310Z","related":["MGASA-2021-0326","SUSE-SU-2021:1489-1","openSUSE-SU-2021:0670-1"],"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202107-27"},{"type":"FIX","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24854"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1939141"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openexr/openexr","events":[{"introduced":"0"},{"fixed":"7bab6d44caf65ee3cabe31553f8e2968c8747be5"},{"introduced":"ed64d5467dee9763f28baf300f7699e6288b9f5f"},{"fixed":"1899a456cbafb213c4a53c35eb3203296f92e503"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"2.4.3"},{"introduced":"2.5.0"},{"fixed":"2.5.4"}]}}],"versions":["v2.5.0","v2.5.1","v2.5.2","v2.5.3"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20296.json","vanir_signatures":[{"deprecated":false,"digest":{"length":1690,"function_hash":"147499493693564905582259429661292444797"},"target":{"file":"OpenEXR/IlmImf/ImfScanLineInputFile.cpp","function":"ScanLineInputFile::initialize"},"source":"https://github.com/openexr/openexr/commit/7bab6d44caf65ee3cabe31553f8e2968c8747be5","signature_version":"v1","signature_type":"Function","id":"CVE-2021-20296-3b14fd36"},{"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["183799983013183831380237481661086301550","111519733374137260985206676436366582935","338562742485568351177658719788975857619","84570287594119879542064273017314287589","152453817114836365619507449973532304004","152126518450649847430180110668365421093","334371091860315902789981231789629231501"]},"target":{"file":"OpenEXR/IlmImf/ImfScanLineInputFile.cpp"},"source":"https://github.com/openexr/openexr/commit/7bab6d44caf65ee3cabe31553f8e2968c8747be5","signature_version":"v1","signature_type":"Line","id":"CVE-2021-20296-bea1d206"}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}