Denial of Service (DoS) Affecting ntp package, versions [4.2.0,4.2.8)[4.3.0,4.3.93)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
7.24% (95th percentile)

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  • Snyk IDSNYK-UNMANAGED-NTP-2382720
  • published26 Jan 2022
  • disclosed5 Jul 2016
  • creditUnknown

Introduced: 5 Jul 2016

CVE-2016-4956  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade ntp to version 4.2.8, 4.3.93 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS) ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (interleaved-mode transition and time change) via a spoofed broadcast packet. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-1548.

References

CVSS Scores

version 3.1