FreeBSD IEEE 802.11 Network Subsystem Remote Buffer Overflow Vulnerability

BID:16296

Info

FreeBSD IEEE 802.11 Network Subsystem Remote Buffer Overflow Vulnerability

Bugtraq ID: 16296
Class: Boundary Condition Error
CVE: CVE-2006-0226
Remote: Yes
Local: No
Published: Jan 18 2006 12:00AM
Updated: Feb 07 2006 08:55PM
Credit: Karl Janmar reported this issue to the vendor.
Vulnerable: FreeBSD FreeBSD 6.0 -STABLE
FreeBSD FreeBSD 6.0 -RELEASE
Not Vulnerable:

Discussion

FreeBSD IEEE 802.11 Network Subsystem Remote Buffer Overflow Vulnerability

FreeBSD is susceptible to a remote, kernel-level buffer overflow vulnerability. This issue is due to a failure of the kernel to properly bounds check user-supplied network data prior to copying it to an insufficiently sized memory buffer.

This issue allows remote attackers to execute arbitrary machine code in the context of the affected kernel, facilitating the complete compromise of affected computers. As this issue is present in a low-level network subsystem, it is likely exploitable even if the host is blocking packets with a host-based packet filter.

Exploit / POC

FreeBSD IEEE 802.11 Network Subsystem Remote Buffer Overflow Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

FreeBSD IEEE 802.11 Network Subsystem Remote Buffer Overflow Vulnerability

Solution:
FreeBSD has released advisory FreeBSD-SA-06:05.80211, along with patches to address this issue. Fixes for this issue have been in FreeBSD's CVS repository as of 18 Jan, 2006. Please see the referenced advisory for further information.


FreeBSD FreeBSD 6.0 -RELEASE

FreeBSD FreeBSD 6.0 -STABLE

References

FreeBSD IEEE 802.11 Network Subsystem Remote Buffer Overflow Vulnerability

References:

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