Vulnerability Note VU#730169
Atheros wireless network drivers may fail to properly handle malformed frames
Atheros wireless drivers fail to properly handle malformed wireless frames. This vulnerability may allow a remote, unauthenticated attacker to create a denial-of-service condition.
Some versions of the Microsoft Windows drivers for Atheros 802.11 a/b/g wireless adapters fail to properly handle malformed frames. If a remote attacker within transmitting range of an affected wireless adapter sends a specially crafted frame to that adapter, they may be able to trigger this vulnerability.
This overflow occurs because the driver does not properly process management frames. An attacker within radio range may be able to trigger the overflow by sending a specially-crafted 802.11 management frame to a vulnerable system. Since 802.11b, 802.11g, and 802.11n management frames are not encrypted or authenticated, using wireless encryption (WEP/WPA) does not mitigate this vulnerability.
An unauthenticated, remote attacker may be able to create a denial-of-service condition.
Systems Affected (Learn More)
|Vendor||Status||Date Notified||Date Updated|
|Atheros Communications, Inc.||Affected||12 Feb 2007||11 May 2007|
|Secure Computing Network Security Division||Not Affected||16 May 2007||24 May 2007|
|Sun Microsystems, Inc.||Not Affected||16 May 2007||20 May 2007|
|3com, Inc.||Unknown||16 May 2007||16 May 2007|
|Alcatel||Unknown||16 May 2007||16 May 2007|
|Apple Computer, Inc.||Unknown||16 May 2007||16 May 2007|
|AT&T||Unknown||16 May 2007||16 May 2007|
|Avaya, Inc.||Unknown||16 May 2007||16 May 2007|
|Avici Systems, Inc.||Unknown||16 May 2007||16 May 2007|
|Borderware Technologies||Unknown||16 May 2007||16 May 2007|
|Charlotte's Web Networks||Unknown||16 May 2007||16 May 2007|
|Check Point Software Technologies||Unknown||16 May 2007||16 May 2007|
|Chiaro Networks, Inc.||Unknown||16 May 2007||16 May 2007|
|Cisco Systems, Inc.||Unknown||11 May 2007||11 May 2007|
|Clavister||Unknown||16 May 2007||16 May 2007|
CVSS Metrics (Learn More)
Thanks to Nicholas Krasny of IBM Managed Security Services for information about this vulnerability and to Jeremy Kelley for reporting.
This document was written by Ryan Giobbi.
- CVE IDs: CVE-2007-2927
- Date Public: 01 Aug 2007
- Date First Published: 01 Aug 2007
- Date Last Updated: 11 Dec 2007
- Severity Metric: 0.77
- Document Revision: 26
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