CVE-2011-5055: Maradns

Medium severity, CVSS 5.0. EPSS: 1.4% chance of exploitation in the next 30 days.

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.

Affected products

• Maradns Maradns: version 1.3.07.012 only; version 1.4.08 only

Published 2012-01-08. Last modified 2026-06-16.