{"id":"CVE-2016-7053","details":"In OpenSSL 1.1.0 before 1.1.0c, applications parsing invalid CMS structures can crash with a NULL pointer dereference. This is caused by a bug in the handling of the ASN.1 CHOICE type in OpenSSL 1.1.0 which can result in a NULL value being passed to the structure callback if an attempt is made to free certain invalid encodings. Only CHOICE structures using a callback which do not handle NULL value are affected.","modified":"2026-07-08T12:05:04.468754Z","published":"2017-05-04T19:29:00.213Z","references":[{"type":"WEB","url":"http://www.securitytracker.com/id/1037261"},{"type":"WEB","url":"https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03744en_us"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/94244"},{"type":"ADVISORY","url":"https://www.openssl.org/news/secadv/20161110.txt"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openssl/openssl","events":[{"introduced":"7ea5bd2b52d0e81eaef3d109b3b12545306f201c"},{"last_affected":"7ea5bd2b52d0e81eaef3d109b3b12545306f201c"}],"database_specific":{"cpe":["cpe:2.3:a:openssl:openssl:1.1.0:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl:1.1.0a:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl:1.1.0b:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.1.0"},{"last_affected":"1.1.0"},{"introduced":"1.1.0a"},{"last_affected":"1.1.0a"},{"introduced":"1.1.0b"},{"last_affected":"1.1.0b"}],"source":"CPE_STRING"}}],"versions":["1.1.0","OpenSSL_1_1_0l"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-7053.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}