FreeBSD : openssl -- multiple vulnerabilities (50751310-a763-11e6-a881-b499baebfeaf)
Medium Nessus Plugin ID 94691
SynopsisThe remote FreeBSD host is missing a security-related update.
DescriptionOpenSSL reports :
- ChaCha20/Poly1305 heap-buffer-overflow (CVE-2016-7054) Severity:
High TLS connections using *-CHACHA20-POLY1305 ciphersuites are susceptible to a DoS attack by corrupting larger payloads. This can result in an OpenSSL crash. This issue is not considered to be exploitable beyond a DoS.
- CMS Null dereference (CVE-2016-7053) Severity: Medium 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.
- Montgomery multiplication may produce incorrect results (CVE-2016-7055)i Severity: Low There is a carry propagating bug in the Broadwell-specific Montgomery multiplication procedure that handles input lengths divisible by, but longer than 256 bits.
SolutionUpdate the affected package.