Gentoo: GLSA-200802-11: Asterisk: Multiple vulnerabilities
Summary
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Gentoo Linux Security Advisory GLSA 200802-11 https://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
========== 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:
https://security.gentoo.org/glsa/200802-11
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 https://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.
https://creativecommons.org/licenses/by-sa/2.5/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - iD8DBQFHxJrnuhJ+ozIKI5gRAj24AJ9B/dpuczuQcgSUyADZOo0qWaZCJACfUiEF rruqvLgqJy68eyibCHnBz6M=jW6E -----END PGP SIGNATURE-----
Resolution
References
Availability
Concerns
![Dist Gentoo](/images/distros/dist-gentoo.png)