CVE Catalog

CVE-2016-4957

High
Published: Translated: NVD NIST

Summary

The vulnerability in ntpd in NTP before version 4.2.8p8 allows remote attackers to cause a daemon crash by sending a crypto-NAK packet. This issue exists due to an incorrect fix for CVE-2016-1547.

Risk Assessment

Attackers can remotely trigger a denial of service on the NTP service, leading to unavailability of the time server. This may affect time synchronization within the organization.

Recommendation

It is recommended to upgrade to NTP version 4.2.8p8 or later to mitigate this vulnerability.

Related vulnerabilities

Original NVD description (English source)

ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547.

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