CVE-2016-7053

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.

• CWE-476

• http://www.securityfocus.com/bid/94244Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037261
• https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03744en_us
• https://www.openssl.org/news/secadv/20161110.txtVendor Advisory
• http://www.securityfocus.com/bid/94244Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037261
• https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03744en_us
• https://www.openssl.org/news/secadv/20161110.txtVendor Advisory

Published

May 4, 2017

Last Modified

Jun 17, 2026

Status

Modified

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