7.8CVSSHIGH
Description
MaraDNS before 1.3.07.12 and 1.4.x before 1.4.08 computes hash values for DNS data without 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.
CVSS Vector Breakdown
Exploitability
AV:NAccess VectorNetwork
AC:LAccess ComplexityLow
Au:NAuthenticationNone
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:CAvailabilityComplete
Weaknesses
Affected Products
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Official Patch Available
MITRE ATT&CK
1 technique Impact
References
http://samiam.org/blog/20111229.html
samiam.org
https://bugzilla.redhat.com/show_bug.cgi?id=771428
bugzilla.redhat.com
http://openwall.com/lists/oss-security/2012/01/03/6
openwall.com
and 1 more references View all →
Timeline
Published
Jan 8, 2012
Last Updated
Apr 29, 2026
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