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ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Aix 5.3.12 Ntp_advisory7 | — | — | Dec 19, 2016 | Jul 4, 2016 |
| Aix 6.1.6 Ntp_advisory7 | — | — | Nov 3, 2017 | Jul 4, 2016 |
| Aix 6.1.9 Ntp_advisory7 | — | — | Dec 19, 2016 | Jul 4, 2016 |
| Aix 7.1.0 Ntp_advisory7 | — | — | Nov 3, 2017 | Jul 4, 2016 |
| Aix 7.1.3 Ntp_advisory7 | — | — | Nov 3, 2017 | Jul 4, 2016 |
| Aix 7.1.4 Ntp_advisory7 | — | — | Dec 19, 2016 | Jul 4, 2016 |
| Aix 7.2.0 Ntp_advisory7 | — | — | Dec 19, 2016 | Jul 4, 2016 |
| Amazon_linux | — | Upgrade ntp | Aug 1, 2016 | Jul 4, 2016 |
| Cisco Apic | — | Upgrade to the latest version of Cisco APIC to resolve this vulnerability. | May 11, 2026 | Jun 3, 2016 |
| Debian | — | Upgrade ntp | Jul 30, 2024 | Jul 5, 2016 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Jun 16, 2016 |
| Freebsd | — | Upgrade FreeBSD | Dec 10, 2025 | Aug 11, 2016 |
| Gentoo Linux | — | Upgrade net-misc/ntp. | Oct 30, 2017 | Jul 4, 2016 |
| Huawei Euleros 2_0_sp1 | — | Upgrade ntpUpgrade ntpdate | Nov 30, 2017 | Jul 4, 2016 |
| Huawei Euleros 2_0_sp2 | — | Upgrade ntpdateUpgrade ntp | Nov 30, 2017 | Jul 4, 2016 |
| Ibm Aix | — | Apply the fix or workaround for ntp_advisory7 | Nov 30, 2017 | Jul 4, 2016 |
| Ntp | — | Upgrade NTP to version 4.3.93Upgrade NTP to version 4.2.8 | Feb 23, 2023 | Jul 5, 2016 |
| Oracle Solaris | — | Upgrade service/network/ntp to version 4.2.8.8-0.175.3.12.0.1.0 on Solaris 11.3 | May 29, 2017 | Jul 4, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jun 2, 2016 |
| Suse | — | Upgrade ntpUpgrade ntp-doc | Jun 13, 2016 | Jun 13, 2016 |
| Ubuntu | — | Upgrade ntp | Oct 7, 2016 | Jul 4, 2016 |
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