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+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
+<glsa id="200606-25">
+  <title>Hashcash: Possible heap overflow</title>
+  <synopsis>
+    A heap overflow vulnerability in the Hashcash utility could allow an
+    attacker to execute arbitrary code.
+  </synopsis>
+  <product type="ebuild">hashcash</product>
+  <announced>2006-06-26</announced>
+  <revised count="02">2006-07-29</revised>
+  <bug>134960</bug>
+  <access>remote</access>
+  <affected>
+    <package name="net-misc/hashcash" auto="yes" arch="*">
+      <unaffected range="ge">1.21</unaffected>
+      <vulnerable range="lt">1.21</vulnerable>
+    </package>
+  </affected>
+  <background>
+    <p>
+    Hashcash is a utility for generating Hashcash tokens, a proof-of-work
+    system to reduce the impact of spam.
+    </p>
+  </background>
+  <description>
+    <p>
+    Andreas Seltenreich has reported a possible heap overflow in the
+    array_push() function in hashcash.c, as a result of an incorrect amount
+    of allocated memory for the "ARRAY" structure.
+    </p>
+  </description>
+  <impact type="high">
+    <p>
+    By sending malicious entries to the Hashcash utility, an attacker may
+    be able to cause an overflow, potentially resulting in the execution of
+    arbitrary code with the privileges of the user running the application.
+    </p>
+  </impact>
+  <workaround>
+    <p>
+    There is no known workaround at this time.
+    </p>
+  </workaround>
+  <resolution>
+    <p>
+    All Hashcash users should upgrade to the latest version:
+    </p>
+    <code>
+    # emerge --sync
+    # emerge --ask --oneshot --verbose "&gt;=net-misc/hashcash-1.21"</code>
+  </resolution>
+  <references>
+    <uri link="http://www.hashcash.org/source/CHANGELOG">Hashcash ChangeLog</uri>
+    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3251">CVE-2006-3251</uri>
+  </references>
+  <metadata tag="requester" timestamp="2006-06-18T12:26:10Z">
+    falco
+  </metadata>
+  <metadata tag="submitter" timestamp="2006-06-18T12:57:56Z">
+    falco
+  </metadata>
+  <metadata tag="bugReady" timestamp="2006-06-23T18:48:20Z">
+    falco
+  </metadata>
+</glsa>