glsa-200708-11.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">

<glsa id="200708-11">
  <title>Lighttpd: Multiple vulnerabilities</title>
  <synopsis>
    Several vulnerabilities were reported in Lighttpd, most of them allowing a
    Denial of Service and potentially the remote execution of arbitrary code.
  </synopsis>
  <product type="ebuild">lighttpd</product>
  <announced>August 16, 2007</announced>
  <revised>August 16, 2007: 01</revised>
  <bug>185442</bug>
  <access>remote</access>
  <affected>
    <package name="www-servers/lighttpd" auto="yes" arch="*">
      <unaffected range="ge">1.4.16</unaffected>
      <vulnerable range="lt">1.4.16</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Lighttpd is a lightweight HTTP web server.
    </p>
  </background>
  <description>
    <p>
    Stefan Esser discovered errors with evidence of memory corruption in
    the code parsing the headers. Several independent researchers also
    reported errors involving the handling of HTTP headers, the mod_auth
    and mod_scgi modules, and the limitation of active connections.
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker can trigger any of these vulnerabilities by sending
    malicious data to the server, which may lead to a crash or memory
    exhaustion, and potentially the execution of arbitrary code.
    Additionally, access-deny settings can be evaded by appending a final /
    to a URL.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All Lighttpd users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=www-servers/lighttpd-1.4.16&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3946">CVE-2007-3946</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3947">CVE-2007-3947</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3948">CVE-2007-3948</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3949">CVE-2007-3949</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3950">CVE-2007-3950</uri>
  </references>
  <metadata tag="requester" timestamp="Tue, 17 Jul 2007 18:07:17 +0000">
    jaervosz
  </metadata>
  <metadata tag="submitter" timestamp="Sun, 12 Aug 2007 21:28:06 +0000">
    falco
  </metadata>
  <metadata tag="bugReady" timestamp="Wed, 15 Aug 2007 05:43:43 +0000">
    jaervosz
  </metadata>
</glsa>