CVE-2006-6931
First published: Tue Jan 16 2007(Updated: )
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."
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Snort | <=2.6.2 |
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Reference Links
- 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
Frequently Asked Questions
What is the severity of CVE-2006-6931?
CVE-2006-6931 is considered a moderate severity vulnerability due to its potential to cause denial of service through CPU exhaustion.
How do I fix CVE-2006-6931?
To fix CVE-2006-6931, upgrade Snort to version 2.6.3 or later, which addresses the algorithmic complexity vulnerability.
What kind of attack does CVE-2006-6931 facilitate?
CVE-2006-6931 facilitates a backtracking attack that can lead to increased CPU consumption and potential detection outage.
Which versions of Snort are affected by CVE-2006-6931?
Snort versions prior to 2.6.3 are affected by CVE-2006-6931.
What is the impact of exploiting CVE-2006-6931?
Exploiting CVE-2006-6931 can result in a denial of service, preventing Snort from effectively detecting network threats.
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