vulnerability

NTP: Improper Input Validation (CVE-2016-2517)

Severity
5
CVSS
(AV:N/AC:H/Au:S/C:N/I:N/A:C)
Published
Jan 30, 2017
Added
Feb 23, 2023
Modified
Mar 1, 2023

Description

NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression.

Solution

ntp-upgrade-latest

References

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