CVE-2006-6931

Current 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."

Basic Data

PublishedJanuary 16, 2007
Last ModifiedJuly 29, 2017
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeNVD-CWE-Other
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactNONE
CVSS 2 - Availability ImpactPARTIAL
CVSS 2 - Base Score5.0
SeverityMEDIUM
Exploitability Score10.0
Impact Score2.9
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationSnortSnort********2.6.2

Vulnerable Software List

VendorProductVersions
Snort Snort *

References

NameSourceURLTags
[dailydave] 20070110 Algorithmic Bugshttp://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.htmlMLIST
23716http://secunia.com/advisories/23716SECUNIA
24164http://secunia.com/advisories/24164SECUNIA
24338http://secunia.com/advisories/24338SECUNIA
GLSA-200702-03http://security.gentoo.org/glsa/glsa-200702-03.xmlGENTOO
1017508http://securitytracker.com/id?1017508SECTRACK
http://www.acsac.org/2006/abstracts/54.htmlhttp://www.acsac.org/2006/abstracts/54.htmlMISC
http://www.acsac.org/2006/advance_program.htmlhttp://www.acsac.org/2006/advance_program.htmlMISC
http://www.acsac.org/2006/papers/54.pdfhttp://www.acsac.org/2006/papers/54.pdfMISCVendor Advisory
http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdfhttp://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdfMISCVendor Advisory
http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.ziphttp://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zipMISC
MDKSA-2007:051http://www.mandriva.com/security/advisories?name=MDKSA-2007:051MANDRIVA
32096http://www.osvdb.org/32096OSVDB
21991http://www.securityfocus.com/bid/21991BID
http://www.snort.org/pub-bin/snortnews.cgihttp://www.snort.org/pub-bin/snortnews.cgiCONFIRM
snort-rule-matching-dos(31430)https://exchange.xforce.ibmcloud.com/vulnerabilities/31430XF