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DESlock+ DLMFDISK.sys/DLMFENC.sys Privilege Escalation Vulnerabilities

Secunia Advisory: SA29005  
Release Date: 2008-02-19
Last Update: 2008-03-11

Critical:
Less critical
Impact: Privilege escalation
DoS
Where: Local system
Solution Status: Vendor Patch

Software:DESlock+ 3.x

CVE reference:CVE-2008-1140 (Secunia mirror)
CVE-2008-1141 (Secunia mirror)
CVE-2008-1138 (Secunia mirror)
CVE-2008-1139 (Secunia mirror)

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Description:
mu-b has reported some vulnerabilities in DESlock+, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or gain escalated privileges.

The vulnerabilities are caused due to input validation errors in DLMFDISK.sys and DLMFENC.sys and can be exploited to e.g. execute arbitrary code with kernel privileges or cause the system to crash via specially crafted arguments passed to certain IOCTL handlers.

The vulnerabilities are reported in version 3.2.6. Prior versions may also be affected.

Solution:
Update to version 3.2.7.
http://www.deslock.com/deslockp_downloads.php

Provided and/or discovered by:
mu-b

Changelog:
2008-03-11: Added CVE reference.

Original Advisory:
http://www.digit-labs.org/files/exploits/deslock-list-zero.c
http://www.digit-labs.org/files/exploits/deslock-list-zero-v2.c
http://www.digit-labs.org/files/exploits/deslock-pown-v2.c
http://www.digit-labs.org/files/exploits/deslock-list-leak.c



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.


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