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The ULOGTOD function in ntp.d in SNTP before 4.2.7p366 does not properly perform type conversions from a precision value to a double, which allows remote attackers to cause a denial of service (infinite loop) via a crafted NTP packet.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Aix 5.3.12 Ntp_advisory4 | — | — | Feb 4, 2016 | Feb 4, 2016 |
| Aix 6.1.6 Ntp_advisory4 | — | — | Nov 3, 2017 | Jul 21, 2017 |
| Aix 6.1.9 Ntp_advisory4 | — | — | Feb 4, 2016 | Feb 4, 2016 |
| Aix 7.1.0 Ntp_advisory4 | — | — | Nov 3, 2017 | Jul 21, 2017 |
| Aix 7.1.3 Ntp_advisory4 | — | — | Feb 4, 2016 | Feb 4, 2016 |
| Aix 7.1.4 Ntp_advisory4 | — | — | Feb 4, 2016 | Feb 4, 2016 |
| Aix 7.2.0 Ntp_advisory4 | — | — | Feb 4, 2016 | Feb 4, 2016 |
| Debian | — | Upgrade ntp | Nov 9, 2015 | Oct 27, 2015 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Jan 19, 2016 |
| Huawei Euleros 2_0_sp1 | — | Upgrade ntpdateUpgrade ntp | Nov 30, 2017 | Jul 21, 2017 |
| Ibm Aix | — | Apply the fix or workaround for ntp_advisory4 | Nov 30, 2017 | Jul 21, 2017 |
| Ntp | — | Upgrade to the latest version of NTP | Feb 23, 2023 | Jul 21, 2017 |
| Oracle_linux | — | Upgrade ntpUpgrade sntpUpgrade ntpdateUpgrade ntp-perlUpgrade ntp-doc | Jul 21, 2017 | Jul 21, 2017 |
| Redhat_linux | — | Upgrade ntp-perlUpgrade ntpNo solution existsUpgrade sntpUpgrade ntp-docUpgrade ntp-debuginfoUpgrade ntpdate | Jul 1, 2017 | Oct 27, 2015 |
| Suse | — | Upgrade ntp-docUpgrade ntp-debugsourceUpgrade ntp-debuginfoUpgrade ntpUpgrade yast2-ntp-client | May 17, 2016 | Oct 27, 2015 |
| Ubuntu | — | Upgrade ntp | Nov 9, 2015 | Oct 27, 2015 |
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