drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Asterisk
Name: |
Mehrere Probleme in Asterisk |
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ID: |
200802-11 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Di, 26. Februar 2008, 23:33 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3762
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3763
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3764
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4103 |
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Applikationen: |
Asterisk |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200802-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High Title: Asterisk: Multiple vulnerabilities Date: February 26, 2008 Bugs: #185713 ID: 200802-11
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Synopsis ========
Multiple vulnerabilities have been found in Asterisk.
Background ==========
Asterisk is an open source telephony engine and tool kit.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/asterisk < 1.2.21.1-r1 *>= 1.2.17-r1 >= 1.2.21.1-r1
Description ===========
Multiple vulnerabilities have been found in Asterisk:
* Russel Bryant reported a stack buffer overflow in the IAX2 channel driver (chan_iax2) when bridging calls between chan_iax2 and any channel driver that uses RTP for media (CVE-2007-3762).
* Chris Clark and Zane Lackey (iSEC Partners) reported a NULL pointer dereference in the IAX2 channel driver (chan_iax2) (CVE-2007-3763).
* Will Drewry (Google Security) reported a vulnerability in the Skinny channel driver (chan_skinny), resulting in an overly large memcpy (CVE-2007-3764).
* Will Drewry (Google Security) reported a vulnerability in the IAX2 channel driver (chan_iax2), that does not correctly handle unauthenticated transactions using a 3-way handshake (CVE-2007-4103).
Impact ======
By sending a long voice or video RTP frame, a remote attacker could possibly execute arbitrary code on the target machine. Sending specially crafted LAGRQ or LAGRP frames containing information elements of IAX frames, or a certain data length value in a crafted packet, or performing a flood of calls not completing a 3-way handshake, could result in a Denial of Service.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All Asterisk users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.17-r1"
References ==========
[ 1 ] CVE-2007-3762 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3762 [ 2 ] CVE-2007-3763 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3763 [ 3 ] CVE-2007-3764 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3764 [ 4 ] CVE-2007-4103 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4103
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200802-11.xml
Concerns? =========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License =======
Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
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