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

high Nessus Plugin ID 94691

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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.

Solution

Update the affected package.

See Also

https://www.openssl.org/news/secadv/20161110.txt

http://www.nessus.org/u?dde96b4b

Plugin Details

Severity: High

ID: 94691

File Name: freebsd_pkg_50751310a76311e6a881b499baebfeaf.nasl

Version: 2.11

Type: local

Published: 11/11/2016

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:openssl-devel, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/10/2016

Vulnerability Publication Date: 11/10/2016

Reference Information

CVE: CVE-2016-7053, CVE-2016-7054, CVE-2016-7055