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<?xml version="1.0" encoding="UTF-8"?>
<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.
<product type="ebuild">bash</product>
<announced>October 20, 2012</announced>
<revised>October 20, 2012: 1</revised>
<package name="app-shells/bash" auto="yes" arch="*">
<unaffected range="ge">4.2_p37</unaffected>
<vulnerable range="lt">4.2_p37</vulnerable>
<p>Bash is the standard GNU Bourne Again SHell. </p>
<p>Two vulnerabilities have been found in Bash:</p>
<li>Bash example scripts do not handle temporary files securely
<li>Improper bounds checking in Bash could cause a stack-based buffer
overflow (CVE-2012-3410).
<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
<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>There is no known workaround at this time.</p>
<p>All Bash users should upgrade to the latest version:</p>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=app-shells/bash-4.2_p37"
<uri link="">CVE-2008-5374</uri>
<uri link="">CVE-2012-3410</uri>
<metadata tag="requester" timestamp="Tue, 04 Sep 2012 16:02:06 +0000">
<metadata tag="submitter" timestamp="Sat, 20 Oct 2012 00:12:47 +0000">ackle</metadata>