Code Affecting ntp package, versions [,4.1.2)


Severity

Recommended
0.0
low
0
10

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

Threat Intelligence

EPSS
0.57% (78th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-NTP-2382694
  • published26 Jan 2022
  • disclosed8 Apr 2015
  • creditUnknown

Introduced: 8 Apr 2015

CVE-2015-1798  (opens in a new tab)
CWE-17  (opens in a new tab)

How to fix?

Upgrade ntp to version 4.1.2 or higher.

Overview

Affected versions of this package are vulnerable to Code. The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting the MAC.

References

CVSS Scores

version 3.1