85 lines
3.1 KiB
XML
85 lines
3.1 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200802-11">
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<title>Asterisk: Multiple vulnerabilities</title>
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<synopsis>
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Multiple vulnerabilities have been found in Asterisk.
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</synopsis>
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<product type="ebuild">asterisk</product>
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<announced>February 26, 2008</announced>
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<revised>February 26, 2008: 01</revised>
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<bug>185713</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/asterisk" auto="yes" arch="*">
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<unaffected range="rge">1.2.17-r1</unaffected>
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<unaffected range="ge">1.2.21.1-r1</unaffected>
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<vulnerable range="lt">1.2.21.1-r1</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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Asterisk is an open source telephony engine and tool kit.
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</p>
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</background>
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<description>
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<p>
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Multiple vulnerabilities have been found in Asterisk:
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</p>
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<ul>
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<li>Russel Bryant reported a stack buffer overflow in the IAX2 channel
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driver (chan_iax2) when bridging calls between chan_iax2 and any
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channel driver that uses RTP for media (CVE-2007-3762).</li>
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<li>Chris
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Clark and Zane Lackey (iSEC Partners) reported a NULL pointer
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dereference in the IAX2 channel driver (chan_iax2)
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(CVE-2007-3763).</li>
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<li>Will Drewry (Google Security) reported a
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vulnerability in the Skinny channel driver (chan_skinny), resulting in
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an overly large memcpy (CVE-2007-3764).</li>
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<li>Will Drewry (Google
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Security) reported a vulnerability in the IAX2 channel driver
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(chan_iax2), that does not correctly handle unauthenticated
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transactions using a 3-way handshake (CVE-2007-4103).</li>
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</ul>
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</description>
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<impact type="high">
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<p>
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By sending a long voice or video RTP frame, a remote attacker could
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possibly execute arbitrary code on the target machine. Sending
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specially crafted LAGRQ or LAGRP frames containing information elements
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of IAX frames, or a certain data length value in a crafted packet, or
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performing a flood of calls not completing a 3-way handshake, could
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result in a Denial of Service.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All Asterisk users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.17-r1"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3762">CVE-2007-3762</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3763">CVE-2007-3763</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3764">CVE-2007-3764</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4103">CVE-2007-4103</uri>
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</references>
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<metadata tag="requester" timestamp="Wed, 07 Nov 2007 19:55:16 +0000">
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jaervosz
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</metadata>
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<metadata tag="submitter" timestamp="Thu, 22 Nov 2007 23:26:53 +0000">
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keytoaster
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</metadata>
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<metadata tag="bugReady" timestamp="Tue, 26 Feb 2008 19:44:52 +0000">
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jaervosz
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</metadata>
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</glsa>
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