RHEL 6 / 7 : openssl (RHSA-2017:0286)

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


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

An update for openssl is now available for Red Hat Enterprise Linux 6
and Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL)
and Transport Layer Security (TLS) protocols, as well as a
full-strength general-purpose cryptography library.

Security Fix(es) :

* An integer underflow leading to an out of bounds read flaw was found
in OpenSSL. A remote attacker could possibly use this flaw to crash a
32-bit TLS/SSL server or client using OpenSSL if it used the RC4-MD5
cipher suite. (CVE-2017-3731)

* A denial of service flaw was found in the way the TLS/SSL protocol
defined processing of ALERT packets during a connection handshake. A
remote attacker could use this flaw to make a TLS/SSL server consume
an excessive amount of CPU and fail to accept connections form other
clients. (CVE-2016-8610)

See also :

https://www.redhat.com/security/data/cve/CVE-2016-8610.html
https://www.redhat.com/security/data/cve/CVE-2017-3731.html
https://www.openssl.org/news/secadv/20170126.txt
http://rhn.redhat.com/errata/RHSA-2017-0286.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 97294 ()

Bugtraq ID:

CVE ID: CVE-2016-8610
CVE-2017-3731

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