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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201201-15">
<title>ktsuss: Privilege escalation</title>
<synopsis>Two vulnerabilities have been found in ktsuss, allowing local
attackers to gain escalated privileges.
</synopsis>
<product type="ebuild">ktsuss</product>
<announced>January 27, 2012</announced>
<revised>January 27, 2012: 1</revised>
<bug>381115</bug>
<access>local</access>
<affected>
<package name="x11-misc/ktsuss" auto="yes" arch="*">
<vulnerable range="le">1.4</vulnerable>
</package>
</affected>
<background>
<p>ktsuss is a simple, graphical version of su written in C and GTK+. </p>
</background>
<description>
<p>Two vulnerabilities have been found in ktuss:</p>
<ul>
<li>Under specific circumstances, ktsuss skips authentication and fails
to change the effective UID back to the real UID (CVE-2011-2921).
</li>
<li>The GTK interface spawned by the ktsuss binary is run as root
(CVE-2011-2922).
</li>
</ul>
</description>
<impact type="high">
<p>A local attacker could gain escalated privileges and use the
"GTK_MODULES" environment variable to possibly execute arbitrary code
with root privileges.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>Gentoo discontinued support for ktsuss. We recommend that users unmerge
ktsuss:
</p>
<code>
# emerge --unmerge "x11-misc/ktsuss"
</code>
</resolution>
<references>
<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2921">CVE-2011-2921</uri>
<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2922">CVE-2011-2922</uri>
</references>
<metadata timestamp="Thu, 27 Oct 2011 21:00:00 +0000" tag="requester">
underling
</metadata>
<metadata timestamp="Fri, 27 Jan 2012 14:41:59 +0000" tag="submitter">ackle</metadata>
</glsa>