CVE-2002-1667
First published: Tue Dec 31 2002(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeBSD Kernel | =4.5-stable | |
| FreeBSD Kernel | =4.5-release |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2002-1667?
The severity of CVE-2002-1667 is classified as a denial of service vulnerability affecting FreeBSD 4.5-RELEASE and earlier.
How do I fix CVE-2002-1667?
To fix CVE-2002-1667, upgrade to a version of FreeBSD later than 4.5, as these versions contain patches that address this vulnerability.
Who is affected by CVE-2002-1667?
CVE-2002-1667 affects local users of FreeBSD 4.5-RELEASE and earlier systems.
What action can trigger CVE-2002-1667?
CVE-2002-1667 can be triggered by local users calling the msync function on an unaccessed memory map created with MAP_ANON and MAP_NOSYNC flags.
What are the potential consequences of CVE-2002-1667?
The potential consequences of CVE-2002-1667 include system crashes and denial of service due to improper virtual memory management.
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