FreeBSD : openssl -- alternate chains certificate forgery vulnerability (075952fe-267e-11e5-9d03-3c970e169bc2)
Medium Nessus Plugin ID 84651
SynopsisThe remote FreeBSD host is missing one or more security-related updates.
DescriptionOpenSSL reports :
During certificate verification, OpenSSL (starting from version 1.0.1n and 1.0.2b) will attempt to find an alternative certificate chain if the first attempt to build such a chain fails. An error in the implementation of this logic can mean that an attacker could cause certain checks on untrusted certificates to be bypassed, such as the CA flag, enabling them to use a valid leaf certificate to act as a CA and 'issue' an invalid certificate.
SolutionUpdate the affected packages.