glsa-201507-02.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201507-02">
  <title>Tor: Denial of service</title>
  <synopsis>Two vulnerabilities have been found in Tor, the worst of which can
    allow remote attackers to cause a Denial of Service condition.
  </synopsis>
  <product type="ebuild">tor</product>
  <announced>2015-07-06</announced>
  <revised count="1">2015-07-06</revised>
  <bug>545940</bug>
  <access>remote</access>
  <affected>
    <package name="net-misc/tor" auto="yes" arch="*">
      <unaffected range="ge">0.2.6.7</unaffected>
      <vulnerable range="lt">0.2.6.7</vulnerable>
    </package>
  </affected>
  <background>
    <p>Tor is an implementation of second generation Onion Routing, a
      connection-oriented anonymizing communication service.
    </p>
  </background>
  <description>
    <p>Tor does not handle data correctly when specifically crafted data is
      sent, and also fails to properly verify a descriptor provided by a hidden
      service directory.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could cause a Denial of Service condition in both a
      Tor client or a Tor server.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Tor users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=net-misc/tor-0.2.6.7"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-2928">CVE-2015-2928</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-2929">CVE-2015-2929</uri>
    <uri link="https://blog.torproject.org/blog/tor-02512-and-0267-are-released">
      Upstream announcement
    </uri>
  </references>
  <metadata tag="requester" timestamp="2015-06-30T22:21:11Z">
    keytoaster
  </metadata>
  <metadata tag="submitter" timestamp="2015-07-06T19:00:59Z">stanley</metadata>
</glsa>