Out-of-Bounds Affecting maradns package, versions [,1.3.07.11)[1.4.01,1.4.06)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
5.17% (92nd percentile)

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  • Snyk IDSNYK-UNMANAGED-MARADNS-2380335
  • published26 Jan 2022
  • disclosed28 Jan 2011
  • creditUnknown

Introduced: 28 Jan 2011

CVE-2011-0520  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade maradns to version 1.3.07.11, 1.4.06 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-Bounds. The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versions allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a long DNS hostname with a large number of labels, which triggers a heap-based buffer overflow.

References

CVSS Base Scores

version 3.1