Code Affecting ntp package, versions [,4.1.2)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.77% (82nd percentile)

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  • Snyk IDSNYK-UNMANAGED-NTP-2382749
  • published26 Jan 2022
  • disclosed8 Apr 2015
  • creditUnknown

Introduced: 8 Apr 2015

CVE-2015-1799  (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 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer.

References

CVSS Scores

version 3.1