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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| 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 |
| 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 |
| Freebsd | — | Upgrade FreeBSD | Dec 10, 2025 | Aug 11, 2016 |
| Gentoo Linux | — | Upgrade net-misc/ntp. | Oct 30, 2017 | Jul 4, 2016 |
| Ibm Aix | — | Apply the fix or workaround for ntp_advisory7 | Nov 30, 2017 | Jul 4, 2016 |
| Ntp | — | Upgrade to the latest version of NTP | 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 |
| Suse | — | Upgrade ntp-docUpgrade ntp | Jun 13, 2016 | Jun 13, 2016 |
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