FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

CVE-2005-2019

This CVE name corresponds to:

Entered	Topic
2005-06-29	kernel -- ipfw packet matching errors with address tables

The following information is adapted from the Common Vulnerabilities and Exposures (CVE) project. CVE and the CVE logo are trademarks of The MITRE Corporation. CVE content is Copyright 2005, The MITRE Corporation.

CVE-2005-2019 at cve.mitre.org

Details

Type	Candidate
Name	CVE-2005-2019
Phase	Assigned(20050621)

Description

ipfw in FreeBSD 5.4, when running on Symmetric Multi-Processor (SMP) or Uni Processor (UP) systems with the PREEMPTION kernel option enabled, does not sufficiently lock certain resources while performing table lookups, which can cause the cache results to be corrupted during multiple concurrent lookups, allowing remote attackers to bypass intended access restrictions.

References

Source	Reference
FREEBSD	FreeBSD-SA-05:13