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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200510-15">
<title>Lynx: Buffer overflow in NNTP processing</title>
<synopsis>
Lynx contains a buffer overflow that may be exploited to execute arbitrary
code.
</synopsis>
<product type="ebuild">Lynx</product>
<announced>October 17, 2005</announced>
<revised>October 17, 2005: 01</revised>
<bug>108451</bug>
<access>remote</access>
<affected>
<package name="www-client/lynx" auto="yes" arch="*">
<unaffected range="ge">2.8.5-r1</unaffected>
<vulnerable range="lt">2.8.5-r1</vulnerable>
</package>
</affected>
<background>
<p>
Lynx is a text-mode browser for the World Wide Web. It supports
multiple URL types, including HTTP and NNTP URLs.
</p>
</background>
<description>
<p>
When accessing a NNTP URL, Lynx connects to a NNTP server and
retrieves information about the available articles in the target
newsgroup. Ulf Harnhammar discovered a buffer overflow in a function
that handles the escaping of special characters.
</p>
</description>
<impact type="normal">
<p>
An attacker could setup a malicious NNTP server and entice a user
to access it using Lynx (either by creating NNTP links on a web page or
by forcing a redirect for Lynx users). The data returned by the NNTP
server would trigger the buffer overflow and execute arbitrary code
with the rights of the user running Lynx.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Lynx users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=www-client/lynx-2.8.5-r1&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-3120">CAN-2005-3120</uri>
</references>
<metadata tag="submitter" timestamp="Sat, 15 Oct 2005 09:30:52 +0000">
koon
</metadata>
<metadata tag="bugReady" timestamp="Mon, 17 Oct 2005 12:46:58 +0000">
koon
</metadata>
</glsa>