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OpenSSL CMS Null dereference (CVE-2016-7053)

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OpenSSL CMS Null dereference (CVE-2016-7053)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
11/11/2016
Created
07/25/2018
Added
11/11/2016
Modified
10/30/2017

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.

Solution(s)

  • http-openssl-1_1_0-upgrade-1_1_0_c

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