FreeBSD : openssl -- multiple vulnerabilities (50751310-a763-11e6-a881-b499baebfeaf)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.

Synopsis :

The remote FreeBSD host is missing a security-related update.

Description :

OpenSSL 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.

See also :

Solution :

Update the affected package.

Risk factor :

Medium / CVSS Base Score : 5.0

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 94691 ()

Bugtraq ID:

CVE ID: CVE-2016-7053

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