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TITLE:
WinMount 87342000h IOCTL NULL Pointer Dereference Denial of Service

SECUNIA ADVISORY ID:
SA46872

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46872/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46872

RELEASE DATE:
2011-12-13

DISCUSS ADVISORY:
http://secunia.com/advisories/46872/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/46872/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=46872

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
ADLab has discovered a vulnerability in WinMount, which can be
exploited by malicious, local users to cause a DoS (Denial of
Service).

The vulnerability is caused due to a NULL pointer dereference error
when processing the 0x87342000 IOCTL in WMDrive.sys. This can be
exploited to cause a system crash via a specially crafted IOCTL sent
to the "\\?\WMDriver" device filename.

The vulnerability is confirmed in version 3.5.1018 (WMDrive.sys
version 3.4.181.224). Other versions may also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
ADLab, VenusTech via Secunia.

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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