CWE
20
Advisory Published
CVE Published
Updated

CVE-2011-5055: Input Validation

First published: Sun Jan 08 2012(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Maradns Project Maradns=1.4.08
Maradns Project Maradns=1.3.07.012

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Frequently Asked Questions

  • What is the severity of CVE-2011-5055?

    CVE-2011-5055 is categorized as a denial of service vulnerability.

  • How do I fix CVE-2011-5055?

    To fix CVE-2011-5055, upgrade to MaraDNS version 1.4.09 or later.

  • What is the impact of CVE-2011-5055?

    The impact of CVE-2011-5055 is increased CPU consumption leading to potential service disruption.

  • Who is affected by CVE-2011-5055?

    CVE-2011-5055 affects users of MaraDNS versions 1.3.07.12 and 1.4.08.

  • Can CVE-2011-5055 be exploited remotely?

    Yes, CVE-2011-5055 can be exploited remotely through crafted DNS queries.

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