Improper Input Validation Affecting maradns package, versions [1.3.07.08,1.3.07.14)[1.4.01,1.4.10)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.58% (73rd percentile)

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  • Snyk IDSNYK-UNMANAGED-MARADNS-2380327
  • published26 Jan 2022
  • disclosed8 Jan 2012
  • creditUnknown

Introduced: 8 Jan 2012

CVE-2011-5055  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade maradns to version 1.3.07.14, 1.4.10 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. 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.

CVSS Base Scores

version 3.1