CVE ID:	CVE-2002-0518
Description:	The SYN cache (syncache) and SYN cookie (syncookie) mechanism in FreeBSD 4.5 and earlier allows remote attackers to cause a denial of service (crash) (1) via a SYN packet that is accepted using syncookies that causes a null pointer to be referenced for the socket's TCP options, or (2) by killing and restarting a process that listens on the same socket, which does not properly clear the old inpcb pointer on restart.
Test IDs:	1.3.6.1.4.1.25623.1.0.52634
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2002-0518 BugTraq ID: 4524 http://www.securityfocus.com/bid/4524 FreeBSD Security Advisory: FreeBSD-SA-02:20 ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:20.syncache.asc http://www.osvdb.org/6046 XForce ISS Database: bsd-syncache-inpcb-dos(8875) http://www.iss.net/security_center/static/8875.php XForce ISS Database: bsd-syncookie-pointer-dos(8873) http://www.iss.net/security_center/static/8873.php