glsa-201607-10.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<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.
  </synopsis>
  <product type="ebuild"/>
  <announced>2016-07-20</announced>
  <revised count="1">2016-07-20</revised>
  <bug>542886</bug>
  <access>remote</access>
  <affected>
    <package name="www-servers/varnish" auto="yes" arch="*">
      <unaffected range="ge">3.0.7</unaffected>
      <vulnerable range="lt">3.0.7</vulnerable>
    </package>
  </affected>
  <background>
    <p>Varnish is a web application accelerator.</p>
  </background>
  <description>
    <p>Varnish fails to properly validate input from HTTP headers, and does not
      deny requests with multiple Content-Length headers.
    </p>
  </description>
  <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>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Varnish users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=www-servers/varnish-3.0.7"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8852">CVE-2015-8852</uri>
  </references>
  <metadata tag="requester" timestamp="2016-07-02T01:59:09Z">b-man</metadata>
  <metadata tag="submitter" timestamp="2016-07-20T09:01:06Z">b-man</metadata>
</glsa>