CVE-2011-5055

MaraDNS 1.3.07.12 and 1.4.08 computes hash values for DNS data without properly restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted queries with the Recursion Desired (RD) bit set. NOTE: this issue exists because of an incomplete fix for CVE-2012-0024.

CVSS v2.0 5.0 MEDIUM

5.0^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://openwall.com/lists/oss-security/2012/01/03/13
http://openwall.com/lists/oss-security/2012/01/03/6
http://samiam.org/blog/20111230.html	Patch
https://bugzilla.redhat.com/show_bug.cgi?id=771428

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:maradns:maradns:1.4.08:::::::*
	cpe:2.3:a:maradns:maradns:1.3.07.012:::::::*

Information

Published : 2012-01-07 16:55

Updated : 2012-01-09 10:30

NVD link : CVE-2011-5055

Mitre link : CVE-2011-5055

JSON object : View

CWE

CWE-20

Improper Input Validation

Products Affected

maradns

maradns

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://openwall.com/lists/oss-security/2012/01/03/13", "name": "[oss-security] 20120103 Re: CVE request: maradns hash table collision cpu dos", "tags": [], "refsource": "MLIST"}, {"url": "http://openwall.com/lists/oss-security/2012/01/03/6", "name": "[oss-security] 20120103 CVE request: maradns hash table collision cpu dos", "tags": [], "refsource": "MLIST"}, {"url": "http://samiam.org/blog/20111230.html", "name": "http://samiam.org/blog/20111230.html", "tags": ["Patch"], "refsource": "CONFIRM"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=771428", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=771428", "tags": [], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "MaraDNS 1.3.07.12 and 1.4.08 computes hash values for DNS data without properly restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted queries with the Recursion Desired (RD) bit set. NOTE: this issue exists because of an incomplete fix for CVE-2012-0024."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-20"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2011-5055", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}}, "publishedDate": "2012-01-08T00:55Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:maradns:maradns:1.4.08:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:maradns:maradns:1.3.07.012:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2012-01-09T18:30Z"}

5.0 /10