The (1) asn1_read_value_type and (2) asn1_read_value functions in GNU Libtasn1 before 3.6 allows context-dependent attackers to cause a denial of service (NULL pointer dereference and crash) via a NULL value in an ivalue argument. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3469
