CVE-2006-6931 Information

Description

Algorithmic complexity vulnerability in Snort before 2.6.1 during predicate evaluation in rule matching for certain rules allows remote attackers to cause a denial of service (CPU consumption and detection outage) via crafted network traffic aka a \backtracking attack.\

Reference

http://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.html http://secunia.com/advisories/23716 http://secunia.com/advisories/24164 http://secunia.com/advisories/24338 http://security.gentoo.org/glsa/glsa-200702-03.xml http://securitytracker.com/id?1017508 http://www.acsac.org/2006/abstracts/54.html http://www.acsac.org/2006/advance_program.html http://www.acsac.org/2006/papers/54.pdf http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip http://www.mandriva.com/security/advisories?name=MDKSA-2007:051 http://www.osvdb.org/32096 http://www.securityfocus.com/bid/21991 http://www.snort.org/pub-bin/snortnews.cgi https://exchange.xforce.ibmcloud.com/vulnerabilities/31430