NTP before 4.2.8p6 and 4.3.0 before 4.3.90 allows a remote attackers to cause a denial of service (stack exhaustion) via an ntpdc relist command, which triggers recursive traversal of the restriction list.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux | — | Upgrade ntp | Sep 19, 2018 | Feb 9, 2016 |
| Cisco Apic | — | Upgrade to the latest version of Cisco APIC to resolve this vulnerability. | May 11, 2026 | Jan 27, 2016 |
| Cisco Ise | — | — | Oct 21, 2025 | Jan 27, 2016 |
| Cisco Xe | — | Upgrade to the latest version of Cisco IOS XE | Jul 30, 2019 | Jan 30, 2017 |
| Cisco Xr Os | — | Upgrade to the latest version of Cisco IOS-XR to resolve this vulnerability. | May 19, 2021 | Jan 27, 2016 |
| Debian | — | Upgrade ntp | Jul 27, 2016 | Feb 9, 2016 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Feb 22, 2016 |
| Freebsd | — | Upgrade ntp-develUpgrade ntpUpgrade FreeBSD | Dec 10, 2025 | Jan 21, 2016 |
| Gentoo Linux | — | Upgrade net-misc/ntp. | Oct 30, 2017 | Jan 30, 2017 |
| Huawei Euleros 2_0_sp1 | — | Upgrade ntpdateUpgrade ntp | Nov 30, 2017 | Jan 30, 2017 |
| Ntp | — | Upgrade to the latest version of NTP | Feb 23, 2023 | Jan 30, 2017 |
| Oracle Solaris | — | Upgrade service/network/ntp to version 4.2.8.6-0.175.3.6.0.1.0 on Solaris 11.3 | May 29, 2017 | Jan 30, 2017 |
| Oracle_linux | — | Upgrade ntp-docUpgrade ntpdateUpgrade ntp-perlUpgrade sntpUpgrade ntp | May 12, 2016 | May 12, 2016 |
| Panos | — | Update PAN-OS 5.0 to the latest workaround for your deviceUpgrade PAN-OS 7.0 to the latest versionUpdate PAN-OS 6.1 to the latest workaround for your deviceUpdate PAN-OS 6.0 to the latest workaround for your deviceUpdate PAN-OS 5.1 to the latest workaround for your deviceUpdate PAN-OS 7.1 to the latest workaround for your device | Oct 11, 2016 | Feb 9, 2016 |
| Redhat_linux | — | Upgrade ntp-perlNo solution existsUpgrade ntp-docUpgrade ntp-debuginfoUpgrade ntpdateUpgrade sntpUpgrade ntp | Jul 1, 2017 | Feb 9, 2016 |
| Suse | — | Upgrade ntpUpgrade yast2-ntp-clientUpgrade ntp-docUpgrade yast2-ntp-client-devel-doc | Apr 28, 2016 | Feb 9, 2016 |
| Ubuntu | — | Upgrade ntp | Oct 7, 2016 | Feb 9, 2016 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jan 30, 2017 |
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