FLSA-2005:123013: Updated xchat package fixes security issue
Posted on: 11/15/2005 12:44 PM

An updated xchat package is available for Fedora Core 1 and 2

Fedora Legacy Update Advisory

Synopsis: Updated xchat package fixes security issue
Advisory ID: FLSA:123013
Issue date: 2005-11-14
Product: Fedora Core
Keywords: Bugfix
CVE Names: CVE-2004-0409

1. Topic:

An updated xchat package that fixes a security bug is now available.

X-Chat is a graphical IRC chat client for the X Window System.

2. Relevant releases/architectures:

Fedora Core 1 - i386
Fedora Core 2 - i386

3. Problem description:

A stack buffer overflow flaw was found in the X-Chat's Socks-5 proxy
code. An attacker could create a malicious Socks-5 proxy server in such
a way that X-Chat would execute arbitrary code if a victim configured
X-Chat to use the proxy. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CVE-2004-0409 to this

Users of X-Chat should upgrade to this updated package which contains a
backported security patch and is not vulnerable to this issue.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which
are not installed but included in the list will not be updated. Note
that you can also use wildcards (*.rpm) if your current directory *only*
contains the desired RPMs.

Please note that this update is also available via yum and apt. Many
people find this an easier way to apply updates. To use yum issue:

yum update

or to use apt:

apt-get update; apt-get upgrade

This will start an interactive process that will result in the
appropriate RPMs being upgraded on your system. This assumes that you
have yum or apt-get configured for obtaining Fedora Legacy content.
Please visit http://www.fedoralegacy.org/docs for directions on how to
configure yum and apt-get.

5. Bug IDs fixed:


6. RPMs required:

Fedora Core 1:



Fedora Core 2:



7. Verification:

SHA1 sum Package Name


These packages are GPG signed by Fedora Legacy for security. Our key is
available from http://www.fedoralegacy.org/about/security.php

You can verify each package with the following command:

rpm --checksig -v lt;filenamegt;

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the sha1sum with the following command:

sha1sum lt;filenamegt;

8. References:


9. Contact:

The Fedora Legacy security contact is lt;secnotice@fedoralegacy.orggt;. More
project details at http://www.fedoralegacy.org

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