CVE-2016-2518: Debian Linux

Medium severity, CVSS 5.3. EPSS: 15.1% chance of exploitation in the next 30 days.

The MATCH_ASSOC function in NTP before version 4.2.8p9 and 4.3.x before 4.3.92 allows remote attackers to cause an out-of-bounds reference via an addpeer request with a large hmode value.

Affected products

Debian Debian Linux: version 8.0 only; version 9.0 only; version 10.0 only
Freebsd Freebsd: version 9.3 only; version 10.1 only; version 10.2 only; version 10.3 only
Netapp Clustered Data Ontap: affected versions not specified
Netapp Data Ontap: affected versions not specified
Netapp Oncommand Balance: affected versions not specified
Netapp Oncommand Performance Manager: affected versions not specified
Netapp Oncommand Unified Manager For Clustered Data Ontap: affected versions not specified
Ntp Ntp: before 4.2.8 (fixed in 4.2.8); from 4.3.0, before 4.3.92 (fixed in 4.3.92); version 4.2.8 only
Oracle Communications User Data Repository: version 10.0.0 only; version 10.0.1 only; version 12.0.0 only
Oracle Linux: version 6 only; version 7 only
Red Hat Enterprise Linux Desktop: version 7.0 only
Red Hat Enterprise Linux Server: version 6.0 only; version 7.0 only
Red Hat Enterprise Linux Server Aus: version 7.2 only; version 7.4 only; version 7.6 only
Red Hat Enterprise Linux Server Eus: version 7.2 only; version 7.3 only; version 7.4 only; version 7.5 only; version 7.6 only; version 7.7 only
Red Hat Enterprise Linux Server Tus: version 7.2 only; version 7.3 only; version 7.6 only; version 7.7 only
Red Hat Enterprise Linux Workstation: version 6.0 only
Siemens SIMATIC Net CP 443-1 Opc Ua Firmware: any version

Published 2017-01-30. Last modified 2026-06-17.