CVE Catalog

CVE-2016-4953

High
Published: Translated: NVD NIST

Summary

NTP in versions 4.x before 4.2.8p8 is vulnerable to an attack that can lead to denial of service. A remote attacker can send a spoofed crypto-NAK packet with incorrect authentication data, resulting in the demobilization of ephemeral associations.

Risk Assessment

An attacker can exploit this vulnerability to disrupt the operation of the NTP server, potentially causing issues with time synchronization within the organization.

Recommendation

It is recommended to upgrade NTP to version 4.2.8p8 or later to mitigate the risk associated with this vulnerability.

Related vulnerabilities

Original NVD description (English source)

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS