CVE-2006-0381 Information

Description

A logic error in the IP fragment cache functionality in pf in FreeBSD 5.3 5.4 and 6.0 and OpenBSD when a ‘scrub fragment crop’ or ‘scrub fragment drop-ovl’ rule is being used allows remote attackers to cause a denial of service (crash) via crafted packets that cause a packet fragment to be inserted twice.

Reference

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:07.pf.asc ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-004.txt.asc http://secunia.com/advisories/18609 http://securitytracker.com/id?1015542 http://www.openbsd.org/cgi-bin/cvsweb/src/sys/net/pf_norm.c.diff?r1=1.103&r2=1.104 http://www.osvdb.org/22732 http://www.securityfocus.com/bid/16375 https://exchange.xforce.ibmcloud.com/vulnerabilities/24337