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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201210-05">
<title>Bash: Multiple vulnerabilities</title>
<synopsis>Two vulnerabilities have been found in Bash, the worst of which may
allow execution of arbitrary code.
</synopsis>
<product type="ebuild">bash</product>
<announced>October 20, 2012</announced>
<revised>October 20, 2012: 1</revised>
<bug>251319</bug>
<bug>431850</bug>
<access>local</access>
<affected>
<package name="app-shells/bash" auto="yes" arch="*">
<unaffected range="ge">4.2_p37</unaffected>
<vulnerable range="lt">4.2_p37</vulnerable>
</package>
</affected>
<background>
<p>Bash is the standard GNU Bourne Again SHell. </p>
</background>
<description>
<p>Two vulnerabilities have been found in Bash:</p>
<ul>
<li>Bash example scripts do not handle temporary files securely
(CVE-2008-5374).
</li>
<li>Improper bounds checking in Bash could cause a stack-based buffer
overflow (CVE-2012-3410).
</li>
</ul>
</description>
<impact type="normal">
<p>A remote attacker could entice a user to open a specially crafted Bash
script, possibly resulting in execution of arbitrary code with the
privileges of the process, or a Denial of Service condition of the Bash
executable.
</p>
<p>A local attacker may be able to perform symlink attacks to overwrite
arbitrary files with the privileges of the user running the application
or bypass shell access restrictions.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All Bash users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=app-shells/bash-4.2_p37"
</code>
</resolution>
<references>
<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-5374">CVE-2008-5374</uri>
<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3410">CVE-2012-3410</uri>
</references>
<metadata tag="requester" timestamp="Tue, 04 Sep 2012 16:02:06 +0000">
underling
</metadata>
<metadata tag="submitter" timestamp="Sat, 20 Oct 2012 00:12:47 +0000">ackle</metadata>
</glsa>