Secunia Research: GEAR CD DVD Filter Driver GEARAspiWDM.sys Two Array-Indexing Vulnerabilities

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                     Secunia Research 02/09/2011

             - GEAR CD DVD Filter Driver GEARAspiWDM.sys -
                - Two Array-Indexing Vulnerabilities -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software 

* GEAR CD DVD Filter Driver version 2.2.0.1.
* GEAR ISO Burn version 1.7.1.

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Not critical
Impact: DoS
Where:  Local system

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3) Vendor's Description of Software 

"GEAR licenses our CD/DVD recording 'drivers' to many companies to add
CD/DVD recording capabilities to their software products. This driver 
interface provides the connection between their software application 
and the user's operating system and hardware."

Product Link:
http://www.gearsoftware.com/support/drivers.php

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4) Description of Vulnerability

Secunia Research has discovered two ulnerabilities in GEAR CD DVD 
Filter Driver, which can be exploited by malicious, local users to 
cause a DoS (Denial of Service).

1) An array-indexing error when accessing a table of pointers can be
exploited to access invalid memory and cause the kernel to crash via
a specially crafted 0x00222018 IOCTL.

2) An array-indexing error when accessing a table of pointers can be 
exploited to access invalid memory and cause the kernel to crash via 
a specially crafted 0x0022201C IOCTL.

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5) Solution 

Apply patch via the driver installer package version 4.018.3.
http://www.gearsoftware.com/support/drivers.php

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6) Time Table 

24/05/2011 - Requested security contact.
25/05/2011 - Vendor response.
25/05/2011 - Details provided to the vendor.
26/05/2011 - Vendor acknowledgment.
03/08/2011 - Vendor releases fixed version.
02/09/2011 - Public disclosure.

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7) Credits 

Discovered by Dmitriy Pletnev, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has not yet
assigned a CVE identifier for the vulnerabilities.

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9) About Secunia

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2011-62/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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