RHEL 6 : openssl (RHSA-2010:0979)

This script is Copyright (C) 2010-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

Updated openssl packages that fix one security issue are now available
for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL
v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a
full-strength, general purpose cryptography library.

A ciphersuite downgrade flaw was found in the OpenSSL SSL/TLS server
code. A remote attacker could possibly use this flaw to change the
ciphersuite associated with a cached session stored on the server, if
the server enabled the SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG option,
possibly forcing the client to use a weaker ciphersuite after resuming
the session. (CVE-2010-4180)

Note: With this update, setting the
SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG option has no effect and this
bug workaround can no longer be enabled.

All OpenSSL users should upgrade to these updated packages, which
contain a backported patch to resolve this issue. For the update to
take effect, all services linked to the OpenSSL library must be
restarted, or the system rebooted.

See also :

https://www.redhat.com/security/data/cve/CVE-2010-4180.html
http://rhn.redhat.com/errata/RHSA-2010-0979.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N)
CVSS Temporal Score : 3.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 51157 ()

Bugtraq ID: 45164

CVE ID: CVE-2010-4180