CVE ID:	CVE-2007-2297
Description:	The SIP channel driver (chan_sip) in Asterisk before 1.2.18 and 1.4.x before 1.4.3 does not properly parse SIP UDP packets that do not contain a valid response code, which allows remote attackers to cause a denial of service (crash).
Test IDs:	1.3.6.1.4.1.25623.1.0.58577
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2007-2297 BugTraq ID: 24359 http://www.securityfocus.com/bid/24359 Bugtraq: 20070425 ASA-2007-011: Multiple problems in SIP channel parser handling response codes (Google Search) http://www.securityfocus.com/archive/1/466882/100/0/threaded Debian Security Information: DSA-1358 (Google Search) http://www.debian.org/security/2007/dsa-1358 http://bugs.digium.com/view.php?id=9313 http://www.securitytracker.com/id?1017954 http://secunia.com/advisories/25582 http://securityreason.com/securityalert/2644 SuSE Security Announcement: SUSE-SA:2007:034 (Google Search) http://www.novell.com/linux/security/advisories/2007_34_asterisk.html XForce ISS Database: asterisk-sip-response-dos(33892) https://exchange.xforce.ibmcloud.com/vulnerabilities/33892