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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200411-24">
<title>BNC: Buffer overflow vulnerability</title>
<synopsis>
BNC contains a buffer overflow vulnerability that may lead to Denial of
Service and execution of arbitrary code.
</synopsis>
<product type="ebuild">BNC</product>
<announced>November 16, 2004</announced>
<revised>November 16, 2004: 01</revised>
<bug>70674</bug>
<access>remote</access>
<affected>
<package name="net-irc/bnc" auto="yes" arch="*">
<unaffected range="ge">2.9.1</unaffected>
<vulnerable range="lt">2.9.1</vulnerable>
</package>
</affected>
<background>
<p>
BNC (BouNCe) is an IRC proxy server.
</p>
</background>
<description>
<p>
Leon Juranic discovered that BNC fails to do proper bounds
checking when checking server response.
</p>
</description>
<impact type="high">
<p>
An attacker could exploit this to cause a Denial of Service and
potentially execute arbitary code with the permissions of the user
running BNC.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All BNC users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/bnc-2.9.1"</code>
</resolution>
<references>
<uri link="http://gotbnc.com/changes.html">BNC ChangeLog</uri>
<uri link="http://security.lss.hr/en/index.php?page=details&amp;ID=LSS-2004-11-03">LSS-2004-11-03</uri>
</references>
<metadata tag="requester" timestamp="Thu, 11 Nov 2004 20:17:39 +0000">
lewk
</metadata>
<metadata tag="submitter" timestamp="Thu, 11 Nov 2004 21:49:41 +0000">
jaervosz
</metadata>
<metadata tag="bugReady" timestamp="Fri, 12 Nov 2004 23:44:26 +0000">
jaervosz
</metadata>
</glsa>