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<?xml version="1.0" encoding="UTF-8"?>
<glsa id="201607-10">
<title>Varnish: Multiple vulnerabilities</title>
<synopsis>Improper input validation in Varnish allows remote attackers to
conduct HTTP smuggling attacks, and possibly trigger a buffer overflow.
<product type="ebuild"></product>
<announced>July 20, 2016</announced>
<revised>July 20, 2016: 1</revised>
<package name="www-servers/varnish" auto="yes" arch="*">
<unaffected range="ge">3.0.7</unaffected>
<vulnerable range="lt">3.0.7</vulnerable>
<p>Varnish is a web application accelerator.</p>
<p>Varnish fails to properly validate input from HTTP headers, and does not
deny requests with multiple Content-Length headers.
<impact type="normal">
<p>Remote attackers could conduct an HTTP response splitting attack, which
may further enable them to conduct Cross-Site Scripting (XSS), Cache
Poisoning, Defacement, and Page Hijacking.
<p>There is no known workaround at this time.</p>
<p>All Varnish users should upgrade to the latest version:</p>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=www-servers/varnish-3.0.7"
<uri link="">CVE-2015-8852</uri>
<metadata tag="requester" timestamp="Sat, 02 Jul 2016 01:59:09 +0000">b-man</metadata>
<metadata tag="submitter" timestamp="Wed, 20 Jul 2016 09:01:06 +0000">b-man</metadata>