CVE-2006-6931

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CVE-2006-6931

Summary:

Details: 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."

References: 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://www.acsac.org/2006/papers/54.pdf, http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf, http://www.mandriva.com/security/advisories?name=MDKSA-2007:051, http://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.html, http://securitytracker.com/id?1017508, http://www.acsac.org/2006/abstracts/54.html, http://www.acsac.org/2006/advance_program.html, http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip, 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, https://security-tracker.debian.org/tracker/CVE-2006-6931