Improperly Implemented Security Check for Standard Affecting ntp-doc package, versions *


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
2.79% (91st percentile)

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  • Snyk IDSNYK-CENTOS6-NTPDOC-2017385
  • published26 Jul 2021
  • disclosed3 Mar 2020

Introduced: 3 Mar 2020

CVE-2020-13817  (opens in a new tab)
CWE-358  (opens in a new tab)

How to fix?

There is no fixed version for Centos:6 ntp-doc.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ntp-doc package and not the ntp-doc package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.

CVSS Scores

version 3.1