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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200606-05">
<title>Pound: HTTP request smuggling</title>
<synopsis>
Pound is vulnerable to HTTP request smuggling, which could be exploited to
bypass security restrictions or poison web caches.
</synopsis>
<product type="ebuild">pound</product>
<announced>2006-06-07</announced>
<revised count="03">2006-11-24</revised>
<bug>118541</bug>
<access>remote</access>
<affected>
<package name="www-servers/pound" auto="yes" arch="*">
<unaffected range="ge">2.0.5</unaffected>
<unaffected range="rge">1.10</unaffected>
<unaffected range="rge">1.9.4</unaffected>
<vulnerable range="lt">2.0.5</vulnerable>
</package>
</affected>
<background>
<p>
Pound is a reverse proxy, load balancer and HTTPS front-end. It allows
to distribute the load on several web servers and offers a SSL wrapper
for web servers that do not support SSL directly.
</p>
</background>
<description>
<p>
Pound fails to handle HTTP requests with conflicting "Content-Length"
and "Transfer-Encoding" headers correctly.
</p>
</description>
<impact type="low">
<p>
An attacker could exploit this vulnerability by sending HTTP requests
with specially crafted "Content-Length" and "Transfer-Encoding" headers
to bypass certain security restrictions or to poison the web proxy
cache.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Pound users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose www-servers/pound</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3751">CVE-2005-3751</uri>
</references>
<metadata tag="requester" timestamp="2006-05-25T15:47:49Z">
DerCorny
</metadata>
<metadata tag="bugReady" timestamp="2006-05-25T18:03:55Z">
koon
</metadata>
<metadata tag="submitter" timestamp="2006-05-29T16:09:23Z">
DerCorny
</metadata>
</glsa>