Improper Authentication Affecting ntp package, versions <1:4.2.8p4+dfsg-3ubuntu5.3


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
2.18% (90th percentile)

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  • Snyk IDSNYK-UBUNTU1604-NTP-372925
  • published26 Jan 2016
  • disclosed26 Jan 2016

Introduced: 26 Jan 2016

CVE-2015-7974  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 ntp to version 1:4.2.8p4+dfsg-3ubuntu5.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ntp package and not the ntp package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."

CVSS Scores

version 3.1