CVE-2006-6931

Home/CVE/Algorithmic complexity vulnerability in Snort before 2.6.1, during predicate evaluation in rule matching for certain rul

CVE

Algorithmic complexity vulnerability in Snort before 2.6.1, during predicate evaluation in rule matching for certain rul

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.".

MEDIUM · CVSS 5 EPSS 0.04694

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No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence

Sigma rules0 YARA rules0

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Affected Products & Versions

snort<= 2.6.2

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Scoring & Timeline

MEDIUM · CVSS v2 (legacy) · cve@mitre.org

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This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Published to NVD16 Jan 2007 · 11:28 PM

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

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

Show all 16 references

http://www.acsac.org/2006/abstracts/54.html

http://www.acsac.org/2006/advance_program.html

http://www.acsac.org/2006/papers/54.pdfVendor Advisory

http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdfVendor Advisory

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

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