CVE-2002-1667: Freebsd

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

The virtual memory management system in FreeBSD 4.5-RELEASE and earlier does not properly check the existence of a VM object during page invalidation, which allows local users to cause a denial of service (crash) by calling msync on an unaccessed memory map created with MAP_ANON and MAP_NOSYNC flags.

Affected products

• Freebsd Freebsd: version 4.5 only

Published 2002-12-31. Last modified 2026-06-16.