CVE-2010-0293: Tuxfamily Chrony

Medium severity, CVSS 5.0. EPSS: 2.7% chance of exploitation in the next 30 days.

The client logging functionality in chronyd in Chrony before 1.23.1 does not restrict the amount of memory used for storage of client information, which allows remote attackers to cause a denial of service (memory consumption) via spoofed (1) NTP or (2) cmdmon packets.

Affected products

• Tuxfamily Chrony: up to and including 1.23-pre1; version 1.18 only; version 1.19 only; version 1.19-1 only; version 1.19.99.1 only; version 1.19.99.2 only; …

Published 2010-02-08. Last modified 2026-06-16.