chrony before 1.31.1 does not properly protect state variables in authenticated symmetric NTP associations, which allows remote attackers with knowledge of NTP peering to cause a denial of service (inability to synchronize) via random timestamps in crafted NTP data packets.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | debian-upgrade-chrony | Jul 30, 2024 | Dec 9, 2019 | |
| Oracle_linux | — | oracle-linux-upgrade-chrony | Oct 16, 2024 | Dec 9, 2019 |
| Ubuntu | ubuntu-upgrade-chrony | Nov 19, 2024 | Dec 9, 2019 |
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