VULNERABILITY INTELLIGENCE
CVE-2011-5055
CVSS score5 MEDIUM
EPSS probability1.45%
CISA KEVNot currently listed
Published2012-01-08
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
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.
Weakness classification
- CWE-20: Improper Input Validation