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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201206-05">
<title>Asterisk: Multiple vulnerabilities</title>
<synopsis>Multiple vulnerabilities in Asterisk might allow remote attackers
to execute arbitrary code.
</synopsis>
<product type="ebuild">Asterisk</product>
<announced>June 21, 2012</announced>
<revised>June 21, 2012: 1</revised>
<bug>413353</bug>
<bug>418189</bug>
<bug>418191</bug>
<access>remote</access>
<affected>
<package name="net-misc/asterisk" auto="yes" arch="*">
<unaffected range="ge">1.8.12.1</unaffected>
<vulnerable range="lt">1.8.12.1</vulnerable>
</package>
</affected>
<background>
<p>Asterisk is an open source telephony engine and toolkit.</p>
</background>
<description>
<p>Multiple vulnerabilities have been found in Asterisk:</p>
<ul>
<li>An error in manager.c allows shell access through the MixMonitor
application, GetVar, or Status (CVE-2012-2414).
</li>
<li>An error in chan_skinny.c could cause a heap-based buffer overflow
(CVE-2012-2415).
</li>
<li>An error in chan_sip.c prevents Asterisk from checking if a channel
exists before connected line updates (CVE-2012-2416).
</li>
<li>An error in chan_iax2.c may cause an invalid pointer to be called
(CVE-2012-2947).
</li>
<li>chan_skinny.c contains a NULL pointer dereference (CVE-2012-2948).</li>
</ul>
</description>
<impact type="normal">
<p>A remote attacker could execute arbitrary code with the privileges of
the process or cause a Denial of Service condition.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All Asterisk users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=net-misc/asterisk-1.8.12.1"
</code>
</resolution>
<references>
<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2414">CVE-2012-2414</uri>
<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2415">CVE-2012-2415</uri>
<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2416">CVE-2012-2416</uri>
<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2947">CVE-2012-2947</uri>
<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2948">CVE-2012-2948</uri>
</references>
<metadata timestamp="Tue, 24 Apr 2012 21:44:51 +0000" tag="requester">ackle</metadata>
<metadata timestamp="Thu, 21 Jun 2012 00:28:33 +0000" tag="submitter">ackle</metadata>
</glsa>