{"id":"CVE-2016-7053","aliases":["DEBIAN-CVE-2016-7053","EUVD-2016-7933","GHSA-hp2v-mmp5-5mcx"],"status":"published","title":"CMS Null dereference","description":"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.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.21682,"percentile":0.97649,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2017-05-04T19:00:00Z","modified":"2026-10-24T10:30:20Z","fixes":[{"ecosystem":"Debian:12","package":"openssl","fixed_in":["1.1.0c-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"openssl","fixed_in":["1.1.0c-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"openssl","fixed_in":["1.1.0c-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.0c-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.0c-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.0c-1"}]}]}],"products":[{"vendor":"openssl","product":"openssl"}],"references":[{"url":"https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03744en_us","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/94244","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://www.openssl.org/news/secadv/20161110.txt","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.securitytracker.com/id/1037261","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-7053"},{"url":"https://github.com/advisories/GHSA-hp2v-mmp5-5mcx"},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-7053","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2016-7053","title":"CMS Null dereference","description":"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.","status":"published","published":"2017-05-04T19:00:00Z","modified":"2024-09-16T20:52:38.446Z","updated_at":"2026-11-02T14:33:36.175943Z"}],"euvd":[{"id":"EUVD-2016-7933","description":"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.","status":"published","published":"2017-05-04T19:00:00Z","modified":"2024-09-16T20:52:38Z","updated_at":"2026-11-03T00:55:10.024877Z"}],"ghsa":[{"id":"GHSA-hp2v-mmp5-5mcx","title":"In OpenSSL 1.1.0 before 1.1.0c, applications parsing invalid CMS structures can crash with a NULL...","description":"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.","status":"published","published":"2022-05-17T02:24:38Z","modified":"2023-01-27T05:04:35Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:42:29.964757Z"}],"nvd":[{"id":"CVE-2016-7053","description":"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.","status":"published","published":"2017-05-04T19:29:00.213Z","modified":"2026-06-17T00:52:13.633Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:03:37.619685Z"}],"osv":[{"id":"CVE-2016-7053","description":"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.","status":"published","published":"2017-05-04T19:29:00.213Z","modified":"2026-10-24T10:30:20.257811111Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:02.776224Z"},{"id":"DEBIAN-CVE-2016-7053","description":"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.","status":"published","published":"2017-05-04T19:29:00.213Z","modified":"2026-09-22T07:02:09.630666921Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:27.910042Z"}]}}