Full Disclosure mailing list archives
[ GLSA 200802-11 ] Asterisk: Multiple vulnerabilities
From: Pierre-Yves Rofes <py () gentoo org>
Date: Wed, 27 Feb 2008 00:04:07 +0100
-----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 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 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 iD8DBQFHxJrnuhJ+ozIKI5gRAj24AJ9B/dpuczuQcgSUyADZOo0qWaZCJACfUiEF rruqvLgqJy68eyibCHnBz6M= =jW6E -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- [ GLSA 200802-11 ] Asterisk: Multiple vulnerabilities Pierre-Yves Rofes (Feb 26)