12 December, 2008
Symantec SPBBCDRV.SYS Device Driver Local Denial of Service

Revision History

Risk Impact

Remote AccessNo
Local AccessYes
Authentication RequiredYes
Exploit publicly availableYes*

*Proof of concept only

Some versions of Symantecís device driver SPBBCDRV.SYS contain a vulnerability which, if successfully exploited, could allow a local attacker to cause the system to crash.

Affected Products
Norton 3601.xRun LiveUpdate in Interactive Mode
Norton AntiSpam2004, 2005Run LiveUpdate in Interactive Mode
Norton AntiVirus2004 through 2008Run LiveUpdate in Interactive Mode
Norton Internet Security2004 through 2008Run LiveUpdate in Interactive Mode
Norton Personal Firewall2004, 2005, 2006Run LiveUpdate in Interactive Mode
Norton System Works2004, 2005, 2006Run LiveUpdate in Interactive Mode
Symantec AntiVirus Corporate Edition10.0.x, allSAV 10.1 MR7 and later
10.1.x, all versions prior to the fix
Symantec Client Security 3.0.xSCS 3.1 MR7 and later
3.1.x ,all versions prior to the fix

Unaffected Products
Norton 3602.xall
Norton Confidentialallall
Norton AntiVirus2009 and laterall
Norton AntiVirus Gaming Editionallall
Norton Internet Security2009 and laterall
Norton Personal Firewall2009 and laterall
Symantec AntiVirus Corporate Edition9.xall
Symantec AntiVirus Corporate Edition10.2all
Symantec AntiVirus for Linux1.xall
Symantec Client Security 2.xall
Symantec Endpoint Protection 11.xall

Symantec was notified of a potential Denial of Service (DoS) vulnerability in the Symantec device driver SPBBCDRV.SYS. The vulnerability is caused by a failure to validate arguments sent to NtCreateMutant and NtOpenEvent.

A potential attacker must be logged into the target computer to attempt an exploit. A successful exploit of this vulnerability could potentially allow that user to crash their computer.

Symantec response
Symantec engineers have verified that the vulnerability exists in the products listed in the Affected Products table above, and have provided updates to correct the problem.

Symantec is not aware of any customers impacted by this issue, or of any attempts to exploit the issue

Updating Consumer (Norton) products
Symantec Norton product users who regularly launch and run LiveUpdate should already have received an updated (non-vulnerable) version of SPBBCDRV.SYS. However, to ensure all available updates have been applied, users can run a manual LiveUpdate as follows:

Best Practice
Symantec recommends any affected customers update their product to protect against potential attempts to exploit this issue. As part of normal best practices, Symantec recommends the following:

This issue was reported by Matousec-Transparent.

This issue is a candidate for inclusion in the Common Vulnerabilities and Exposures (CVE) list (, which standardizes names for security problems. The CVE initiative has assigned CVE-2007-1793 to this issue.

SecurityFocus has assigned BugTraq ID (BID) 23241 to this vulnerability.

Initial Post on: Tuesday, 26-Jun-07 12:00:00
Last modified on: