CVE-2000-0461: Freebsd

Low severity, CVSS 2.1. EPSS: 0.3% chance of exploitation in the next 30 days.

The undocumented semconfig system call in BSD freezes the state of semaphores, which allows local users to cause a denial of service of the semaphore system by using the semconfig call.

Affected products

• Freebsd Freebsd: version 1.1.5.1 only; version 2.0 only; version 2.0.5 only; version 2.1.0 only; version 2.1.5 only; version 2.1.6 only; …
• Netbsd Netbsd: version 1.4.1 only; version 1.4.2 only

Published 2000-05-29. Last modified 2026-06-16.