Improper Input Validation Affecting ntp package, versions <4.2.8p15-4.10.1


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
3.14% (88th 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-SLES151-NTP-2708268
  • published14 Apr 2022
  • disclosed2 Jul 2020

Introduced: 2 Jul 2020

CVE-2018-8956  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 ntp to version 4.2.8p15-4.10.1 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 SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that broadcast network that can capture certain required packets on the attacker's behalf and send them to the attacker.

CVSS Base Scores

version 3.1