CVEvulnerability
CVE-2006-6931
5.0 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2007-01-16
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
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."
Affected configurations
• snort snort (<= 2.6.2)
Related
Referenced by CWE · observed example (1)
- CWE-407 Inefficient Algorithmic Complexity weakness
References
- http://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.html lists.immunitysec.com
- http://secunia.com/advisories/23716 secunia.com
- http://secunia.com/advisories/24164 secunia.com
- http://secunia.com/advisories/24338 secunia.com
- http://security.gentoo.org/glsa/glsa-200702-03.xml security.gentoo.org
- http://securitytracker.com/id?1017508 securitytracker.com
- http://www.acsac.org/2006/abstracts/54.html www.acsac.org
- http://www.acsac.org/2006/advance_program.html www.acsac.org
- http://www.acsac.org/2006/papers/54.pdf Vendor Advisory
- http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf Vendor Advisory
- http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip www.cs.wisc.edu
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:051 www.mandriva.com
- http://www.osvdb.org/32096 www.osvdb.org
- http://www.securityfocus.com/bid/21991 www.securityfocus.com
- http://www.snort.org/pub-bin/snortnews.cgi www.snort.org
- https://exchange.xforce.ibmcloud.com/vulnerabilities/31430 exchange.xforce.ibmcloud.com
- http://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.html lists.immunitysec.com
- http://secunia.com/advisories/23716 secunia.com
- http://secunia.com/advisories/24164 secunia.com
- http://secunia.com/advisories/24338 secunia.com
- http://security.gentoo.org/glsa/glsa-200702-03.xml security.gentoo.org
- http://securitytracker.com/id?1017508 securitytracker.com
- http://www.acsac.org/2006/abstracts/54.html www.acsac.org
- http://www.acsac.org/2006/advance_program.html www.acsac.org
- http://www.acsac.org/2006/papers/54.pdf Vendor Advisory
- http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf Vendor Advisory
- http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip www.cs.wisc.edu
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:051 www.mandriva.com
- http://www.osvdb.org/32096 www.osvdb.org
- http://www.securityfocus.com/bid/21991 www.securityfocus.com
- http://www.snort.org/pub-bin/snortnews.cgi www.snort.org
- https://exchange.xforce.ibmcloud.com/vulnerabilities/31430 exchange.xforce.ibmcloud.com