CVE-2002-1667
FreeBSD 4.5-RELEASE and earlier - Denial of Service via msync on Unaccessed Memory Map
Title source: llmDescription
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.
References (2)
Core 2
Core References
Patch, Vendor Advisory vendor-advisory
x_refsource_freebsd
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:22.mmap.asc
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/8921
Scores
EPSS
0.0006
EPSS Percentile
18.1%
Details
Status
published
Products (1)
freebsd/freebsd
4.5 release (2 CPE variants)
Published
Dec 31, 2002
Tracked Since
Feb 18, 2026