Home/CVE/The virtual memory management system in FreeBSD 4.5-RELEASE and earlier does not properly check the existence of a VM ob
CVE

CVE-2002-1667

The virtual memory management system in FreeBSD 4.5-RELEASE and earlier does not properly check the existence of a VM ob

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.

LOW · CVSS 2.1 EPSS 0.00058
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

1
freebsdall versions
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Scoring & Timeline

2.1
LOW · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:L/AC:L/Au:N/C:N/I:N/A:P
Published to NVD31 Dec 2002 · 05:00 AM
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:22.mmap.ascPatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/8921
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