{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2006-12-12T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "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.\""}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-07-28T12:57:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "21991", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/21991"}, {"tags": ["x_refsource_MISC"], "url": "http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip"}, {"name": "[dailydave] 20070110 Algorithmic Bugs", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.html"}, {"name": "24164", "tags": ["third-party-advisory", "x_refsource_SECUNIA"], "url": "http://secunia.com/advisories/24164"}, {"name": "24338", "tags": ["third-party-advisory", "x_refsource_SECUNIA"], "url": "http://secunia.com/advisories/24338"}, {"name": "snort-rule-matching-dos(31430)", "tags": ["vdb-entry", "x_refsource_XF"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/31430"}, {"name": "32096", "tags": ["vdb-entry", "x_refsource_OSVDB"], "url": "http://www.osvdb.org/32096"}, {"name": "23716", "tags": ["third-party-advisory", "x_refsource_SECUNIA"], "url": "http://secunia.com/advisories/23716"}, {"name": "1017508", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://securitytracker.com/id?1017508"}, {"name": "GLSA-200702-03", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "http://security.gentoo.org/glsa/glsa-200702-03.xml"}, {"tags": ["x_refsource_MISC"], "url": "http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf"}, {"name": "MDKSA-2007:051", "tags": ["vendor-advisory", "x_refsource_MANDRIVA"], "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:051"}, {"tags": ["x_refsource_MISC"], "url": "http://www.acsac.org/2006/advance_program.html"}, {"tags": ["x_refsource_MISC"], "url": "http://www.acsac.org/2006/papers/54.pdf"}, {"tags": ["x_refsource_MISC"], "url": "http://www.acsac.org/2006/abstracts/54.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.snort.org/pub-bin/snortnews.cgi"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2006-6931", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "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.\""}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "21991", "refsource": "BID", "url": "http://www.securityfocus.com/bid/21991"}, {"name": "http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip", "refsource": "MISC", "url": "http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip"}, {"name": "[dailydave] 20070110 Algorithmic Bugs", "refsource": "MLIST", "url": "http://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.html"}, {"name": "24164", "refsource": "SECUNIA", "url": "http://secunia.com/advisories/24164"}, {"name": "24338", "refsource": "SECUNIA", "url": "http://secunia.com/advisories/24338"}, {"name": "snort-rule-matching-dos(31430)", "refsource": "XF", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/31430"}, {"name": "32096", "refsource": "OSVDB", "url": "http://www.osvdb.org/32096"}, {"name": "23716", "refsource": "SECUNIA", "url": "http://secunia.com/advisories/23716"}, {"name": "1017508", "refsource": "SECTRACK", "url": "http://securitytracker.com/id?1017508"}, {"name": "GLSA-200702-03", "refsource": "GENTOO", "url": "http://security.gentoo.org/glsa/glsa-200702-03.xml"}, {"name": "http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf", "refsource": "MISC", "url": "http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf"}, {"name": "MDKSA-2007:051", "refsource": "MANDRIVA", "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:051"}, {"name": "http://www.acsac.org/2006/advance_program.html", "refsource": "MISC", "url": "http://www.acsac.org/2006/advance_program.html"}, {"name": "http://www.acsac.org/2006/papers/54.pdf", "refsource": "MISC", "url": "http://www.acsac.org/2006/papers/54.pdf"}, {"name": "http://www.acsac.org/2006/abstracts/54.html", "refsource": "MISC", "url": "http://www.acsac.org/2006/abstracts/54.html"}, {"name": "http://www.snort.org/pub-bin/snortnews.cgi", "refsource": "CONFIRM", "url": "http://www.snort.org/pub-bin/snortnews.cgi"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-07T20:42:07.809Z"}, "title": "CVE Program Container", "references": [{"name": "21991", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/21991"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip"}, {"name": "[dailydave] 20070110 Algorithmic Bugs", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.html"}, {"name": "24164", "tags": ["third-party-advisory", "x_refsource_SECUNIA", "x_transferred"], "url": "http://secunia.com/advisories/24164"}, {"name": "24338", "tags": ["third-party-advisory", "x_refsource_SECUNIA", "x_transferred"], "url": "http://secunia.com/advisories/24338"}, {"name": "snort-rule-matching-dos(31430)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/31430"}, {"name": "32096", "tags": ["vdb-entry", "x_refsource_OSVDB", "x_transferred"], "url": "http://www.osvdb.org/32096"}, {"name": "23716", "tags": ["third-party-advisory", "x_refsource_SECUNIA", "x_transferred"], "url": "http://secunia.com/advisories/23716"}, {"name": "1017508", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://securitytracker.com/id?1017508"}, {"name": "GLSA-200702-03", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "http://security.gentoo.org/glsa/glsa-200702-03.xml"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf"}, {"name": "MDKSA-2007:051", "tags": ["vendor-advisory", "x_refsource_MANDRIVA", "x_transferred"], "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:051"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://www.acsac.org/2006/advance_program.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://www.acsac.org/2006/papers/54.pdf"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://www.acsac.org/2006/abstracts/54.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.snort.org/pub-bin/snortnews.cgi"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2006-6931", "datePublished": "2007-01-16T23:00:00.000Z", "dateReserved": "2007-01-16T00:00:00.000Z", "dateUpdated": "2024-08-07T20:42:07.809Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*", "matchCriteriaId": "020FACB7-031C-43A3-A138-61E0C24F467D", "versionEndIncluding": "2.6.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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.\""}, {"lang": "es", "value": "Vulnerabilidad de complejidad algor\u00edtmica en Snort anterior a 2.6.1, durante la evaluaci\u00f3n de un predicado en el chequeo de reglas para ciertas reglas, permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de CPU y parada de detecci\u00f3n) mediante tr\u00e1fico de red manipulado, tambi\u00e9n conocido como un \"ataque de vuelta hacia atr\u00e1s\" (backtracking attack)."}], "id": "CVE-2006-6931", "lastModified": "2026-04-23T00:35:47.467", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2007-01-16T23:28:00.000", "references": [{"source": "cve@mitre.org", "url": "http://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.html"}, {"source": "cve@mitre.org", "url": "http://secunia.com/advisories/23716"}, {"source": "cve@mitre.org", "url": "http://secunia.com/advisories/24164"}, {"source": "cve@mitre.org", "url": "http://secunia.com/advisories/24338"}, {"source": "cve@mitre.org", "url": "http://security.gentoo.org/glsa/glsa-200702-03.xml"}, {"source": "cve@mitre.org", "url": "http://securitytracker.com/id?1017508"}, {"source": "cve@mitre.org", "url": "http://www.acsac.org/2006/abstracts/54.html"}, {"source": "cve@mitre.org", "url": "http://www.acsac.org/2006/advance_program.html"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://www.acsac.org/2006/papers/54.pdf"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf"}, {"source": "cve@mitre.org", "url": "http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip"}, {"source": "cve@mitre.org", "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:051"}, {"source": "cve@mitre.org", "url": "http://www.osvdb.org/32096"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/21991"}, {"source": "cve@mitre.org", "url": "http://www.snort.org/pub-bin/snortnews.cgi"}, {"source": "cve@mitre.org", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/31430"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.immunitysec.com/pipermail/dailydave/2007-January/003954.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/23716"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/24164"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/24338"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://security.gentoo.org/glsa/glsa-200702-03.xml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://securitytracker.com/id?1017508"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.acsac.org/2006/abstracts/54.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.acsac.org/2006/advance_program.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://www.acsac.org/2006/papers/54.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://www.cs.wisc.edu/~smithr/pubs/acsac2006.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.cs.wisc.edu/~smithr/pubs/randy_smith_acsac2006.zip"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:051"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.osvdb.org/32096"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/21991"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.snort.org/pub-bin/snortnews.cgi"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/31430"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}