CVE-2011-5055

Name: CVE-2011-5055
Creator: NVD / NIST
Published: 2012-01-08T00:55:03.503+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.58%

Last modified Jun 16, 2026

CVE-2011-5055 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.58% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

1.58%

72.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Maradns	Maradns	1.3.07.012
Maradns	Maradns	1.4.08

References

Timeline

Published: Jan 8, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-5055?

How severe is CVE-2011-5055?

Severity scoring for CVE-2011-5055 is pending analysis. The EPSS model estimates a 1.58% probability of exploitation in the next 30 days.

How do I fix CVE-2011-5055?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-5055?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST