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         (PT-2009-11) Positive Technologies Security Advisory

       SlySoft Multiple Products ElbyCDIO.sys Denial of Service

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---[ Affected Software ]

SlySoft
AnyDVD version 6.5.2.2 and previous
Virtual CloneDrive 5.4.2.3 and previous
CloneDVD 2.9.2.0 and previous
CloneCD 5.3.1.3 and previous

        Product Link:
http://www.slysoft.com 


---[ Severity Rating ]

        Severity:       Medium
        Impact:         Denial of Service
        Attack Vector:  Local

        CVSS v2:
               Base Score:     4.7
               Temporal Score: 3.7
               Vector:         (AV:L/AC:M/Au:N/C:N/I:N/A:C/E:P/RL:O/RC:C)

        CVE:   CVE-2009-0824


---[ Software Description ]

SlySoft AnyDVD is capable of removing unwanted movie features, including 
subtitles and prohibition messages such as copyright and FBI warnings. It 
also allows you to launch an external application whenever you insert or 
remove a disc, or prevent 'PC-friendly' software from automatically 
launching when you insert a video DVD.

---[ Vulnerability Description ]

Positive Technologies Research Team has discovered multiple memory 
corruption vulnerabilities in SlySoft products.

The IOCTL handler in ElbyCDIO.sys 6.0.2.0 and earlier, shipped with AnyDVD, 
Virtual CloneDrive, CloneDVD and CloneCD, uses the METHOD_NEITHER 
communication method for IOCTLs and does not properly validate buffer data 
associated with the Irp object, which allows local users to crash the 
system.


---[ Solution ]
AnyDVD:
Update AnyDVD to version 6.5.2.6.


---[ Disclosure Timeline ]

02.11.2009 - Vendor notified
02.11.2009 - Vendor replied
02.12.2009 - Sent detailed information
03.06.2009 - Vendor released fixed version of AnyDVD
03.12.2009 - Public disclosure


---[ Credits ]

This vulnerability was discovered by Nikita Tarakanov, Positive Technologies 
Research Team.


---[ References ]

http://en.securitylab.ru/lab/PT-2009-11 
http://www.ptsecurity.ru/advisory.asp 

Complete list of vulnerability reports published by Positive Technologies 
Research Team:

http://en.securitylab.ru/lab/ 
http://www.ptsecurity.ru/advisory.asp 


---[ About Positive Technologies ]

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