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+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
+<glsa id="200703-14">
+ <title>Asterisk: SIP Denial of service</title>
+ <synopsis>
+ Asterisk is vulnerable to Denial of Service in the SIP channel.
+ </synopsis>
+ <product type="ebuild">asterisk</product>
+ <announced>2007-03-16</announced>
+ <revised count="01">2007-03-16</revised>
+ <bug>169616</bug>
+ <access>remote</access>
+ <affected>
+ <package name="net-misc/asterisk" auto="yes" arch="*">
+ <unaffected range="ge">1.2.14-r1</unaffected>
+ <unaffected range="rge">1.0.12-r1</unaffected>
+ <vulnerable range="lt">1.2.14-r1</vulnerable>
+ </package>
+ </affected>
+ <background>
+ <p>
+ Asterisk is an open source implementation of a telephone private branch
+ exchange (PBX).
+ </p>
+ </background>
+ <description>
+ <p>
+ The MU Security Research Team discovered that Asterisk contains a
+ NULL-pointer dereferencing error in the SIP channel when handling
+ request messages.
+ </p>
+ </description>
+ <impact type="normal">
+ <p>
+ A remote attacker could cause an Asterisk server listening for SIP
+ messages to crash by sending a specially crafted SIP request message.
+ </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 net-misc/asterisk</code>
+ <p>
+ Note: Asterisk 1.0.x is no longer supported upstream so users should
+ consider upgrading to Asterisk 1.2.x.
+ </p>
+ </resolution>
+ <references>
+ <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1306">CVE-2007-1306</uri>
+ <uri link="http://labs.musecurity.com/advisories/MU-200703-01.txt">MU-200703-01</uri>
+ </references>
+ <metadata tag="submitter" timestamp="2007-03-16T07:59:58Z">
+ jaervosz
+ </metadata>
+ <metadata tag="bugReady" timestamp="2007-03-16T10:36:56Z">
+ falco
+ </metadata>
+</glsa>