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CVE-2011-5055

Date: January 7, 2012

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.

Severity Score

Related Resources (6)

http://openwall.com/lists/oss-security/2012/01/03/6
http://openwall.com/lists/oss-security/2012/01/03/13
https://bugzilla.redhat.com/show_bug.cgi?id=771428
https://nvd.nist.gov/vuln/detail/CVE-2011-5055
http://samiam.org/blog/20111230.html
https://www.mend.io/vulnerability-database/CVE-2011-5055

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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