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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200401-04">
<title>GAIM 0.75 Remote overflows</title>
<synopsis>
Various overflows in the handling of AIM DirectIM packets was revealed in
GAIM that could lead to a remote compromise of the IM client.
</synopsis>
<product type="ebuild">GAIM</product>
<announced>January 26, 2004</announced>
<revised>January 26, 2004: 01</revised>
<bug>39470</bug>
<access>man-in-the-middle</access>
<affected>
<package name="net-im/gaim" auto="yes" arch="*">
<unaffected range="ge">0.75-r7</unaffected>
<vulnerable range="lt">0.75-r7</vulnerable>
</package>
</affected>
<background>
<p>
Gaim is a multi-platform and multi-protocol instant messaging
client. It is compatible with AIM , ICQ, MSN Messenger, Yahoo,
IRC, Jabber, Gadu-Gadu, and the Zephyr networks.
</p>
</background>
<description>
<p>
Yahoo changed the authentication methods to their IM servers,
rendering GAIM useless. The GAIM team released a rushed release
solving this issue, however, at the same time a code audit
revealed 12 new vulnerabilities.
</p>
</description>
<impact type="normal">
<p>
Due to the nature of instant messaging many of these bugs require
man-in-the-middle attacks between the client and the server. But
the underlying protocols are easy to implement and attacking
ordinary TCP sessions is a fairly simple task. As a result, all
users are advised to upgrade their GAIM installation.
</p>
<ul>
<li>
Users of GAIM 0.74 or below are affected by 7 of the
vulnerabilities and are encouraged to upgrade.
</li>
<li>
Users of GAIM 0.75 are affected by 11 of the vulnerabilities
and are encouraged to upgrade to the patched version of GAIM
offered by Gentoo.
</li>
<li>
Users of GAIM 0.75-r6 are only affected by
4 of the vulnerabilities, but are still urged to upgrade to
maintain security.
</li>
</ul>
</impact>
<workaround>
<p>
There is no immediate workaround; a software upgrade is required.
</p>
</workaround>
<resolution>
<p>
All users are recommended to upgrade GAIM to 0.75-r7.
</p>
<code>
$> emerge sync
$> emerge -pv ">=net-im/gaim-0.75-r7"
$> emerge ">=net-im/gaim-0.75-r7"</code>
</resolution>
<references>
<uri link="http://www.securityfocus.com/archive/1/351235/2004-01-23/2004-01-29/0">Security advisory from Stefan Esser</uri>
</references>
</glsa>
|
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