| <?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>March 16, 2007</announced> |
| <revised>March 16, 2007: 01</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="http://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="Fri, 16 Mar 2007 07:59:58 +0000"> |
| jaervosz |
| </metadata> |
| <metadata tag="bugReady" timestamp="Fri, 16 Mar 2007 10:36:56 +0000"> |
| falco |
| </metadata> |
| </glsa> |