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

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

Severity
5
CVSS
(AV:N/AC:H/Au:S/C:N/I:N/A:C)
Published
01/30/2017
Created
02/28/2023
Added
02/23/2023
Modified
03/01/2023

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(s)

  • ntp-upgrade-latest

References

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