ntp-keygen in ntp 4.2.8px before 4.2.8p2-RC2 and 4.3.x before 4.3.12 does not generate MD5 keys with sufficient entropy on big endian machines when the lowest order byte of the temp variable is between 0x20 and 0x7f and not #, which might allow remote attackers to obtain the value of generated MD5 keys via a brute force attack with the 93 possible keys.
CVSS Details
- CVSS 3.0 Base Score: 7.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade ntp | Nov 9, 2015 | Nov 1, 2015 |
| Ntp | — | Upgrade to the latest version of NTP | Feb 23, 2023 | Aug 9, 2017 |
| Oracle Solaris | — | Upgrade service/network/ntp to version 4.2.8.2-0.175.2.10.0.5.0 on Solaris 11.2 | May 29, 2017 | May 29, 2017 |
| Oracle_linux | — | Upgrade ntp-docUpgrade ntp-perlUpgrade ntpdateUpgrade ntpUpgrade sntp | Oct 16, 2024 | Aug 9, 2017 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 9, 2015 |
| Suse | — | Upgrade ntp-docUpgrade ntp | Dec 18, 2015 | May 13, 2015 |
| Ubuntu | — | Upgrade ntp | Nov 19, 2024 | Aug 9, 2017 |
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