RHEL 2.1 / 3 / 4 : openssl (RHSA-2005:800)

This script is Copyright (C) 2005-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

Updated OpenSSL packages that fix various security issues are now
available.

This update has been rated as having moderate security impact by the
Red Hat Security Response Team.

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

OpenSSL contained a software work-around for a bug in SSL handling in
Microsoft Internet Explorer version 3.0.2. This work-around is enabled
in most servers that use OpenSSL to provide support for SSL and TLS.
Yutaka Oiwa discovered that this work-around could allow an attacker,
acting as a 'man in the middle' to force an SSL connection to use SSL
2.0 rather than a stronger protocol such as SSL 3.0 or TLS 1.0. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CVE-2005-2969 to this issue.

A bug was also fixed in the way OpenSSL creates DSA signatures. A
cache timing attack was fixed in RHSA-2005-476 which caused OpenSSL to
do private key calculations with a fixed time window. The DSA fix for
this was not complete and the calculations are not always performed
within a fixed-window. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CVE-2005-0109 to this
issue.

Users are advised to upgrade to these updated packages, which remove
the MISE 3.0.2 work-around and contain patches to correct these
issues.

Note: After installing this update, users are advised to either
restart all services that use OpenSSL or restart their system.

See also :

https://www.redhat.com/security/data/cve/CVE-2005-0109.html
https://www.redhat.com/security/data/cve/CVE-2005-2969.html
http://rhn.redhat.com/errata/RHSA-2005-800.html

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)

Family: Red Hat Local Security Checks

Nessus Plugin ID: 20050 ()

Bugtraq ID:

CVE ID: CVE-2005-0109
CVE-2005-2969