CVE Catalog

CVE-2016-4954

High
Published: Translated: NVD NIST

Summary

The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service by modifying the peer variable through spoofed packets from many source IP addresses in a certain scenario.

Risk Assessment

Attackers can exploit this vulnerability to disrupt the operation of the NTP server, potentially leading to time synchronization issues within the organization.

Recommendation

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

Related vulnerabilities

Original NVD description (English source)

The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication.

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