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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
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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
issue.
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:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=123013
6. RPMs required:
Fedora Core 1:
SRPM:
http://download.fedoralegacy.org/fedora/1/updates/SRPMS/xchat-2.0.7-1.FC1.1.legacy.src.rpm
i386:
http://download.fedoralegacy.org/fedora/1/updates/i386/xchat-2.0.7-1.FC1.1.legacy.i386.rpm
Fedora Core 2:
SRPM:
http://download.fedoralegacy.org/fedora/2/updates/SRPMS/xchat-2.0.7-5.1.legacy.src.rpm
i386:
http://download.fedoralegacy.org/fedora/2/updates/i386/xchat-2.0.7-5.1.legacy.i386.rpm
7. Verification:
SHA1 sum Package Name
---------------------------------------------------------------------
949871bada73a7e47b412e04b296fb8e661a6889
fedora/1/updates/i386/xchat-2.0.7-1.FC1.1.legacy.i386.rpm
e9defab76a100c3c066b85a9fa83ebcd1527ce71
fedora/1/updates/SRPMS/xchat-2.0.7-1.FC1.1.legacy.src.rpm
557e51ab8c91c4e824c132b4e58fc372ba6bf4c7
fedora/2/updates/i386/xchat-2.0.7-5.1.legacy.i386.rpm
4e856255dd724c8364556e792c162b1f0fbc29ea
fedora/2/updates/SRPMS/xchat-2.0.7-5.1.legacy.src.rpm
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 <filename>
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 <filename>
8. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0409
9. Contact:
The Fedora Legacy security contact is <secnotice@xxxxxxxxxxxxxxxx>. More
project details at http://www.fedoralegacy.org
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