Secunia Research: Autodesk SketchBook Pro PSD File Processing Integer Overflow Vulnerability

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             	        Secunia Research 18/07/2014
 
                          Autodesk SketchBook Pro
            PSD File Processing Integer Overflow Vulnerability

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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

* Autodesk SketchBook Pro version 6.2.5.

NOTE: Prior versions may also be affected.

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2) Severity 

Rating: Moderately Critical
Impact: System Compromise
Where:  From Network

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3) Vendor's Description of Software 

"SketchBook® Pro sketching and painting software is a professional-
grade program for digital artists, illustrators, and designers.
Transform your Windows- or Mac-based computer into a digital
sketchbook using powerful illustration tools and an intuitive user
interface."

Product Link:
http://www.autodesk.com/products/sketchbook-pro/overview
 
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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Autodesk SketchBook
Pro, which can be exploited by malicious people to compromise a user's
system.

The vulnerability is caused due to an integer overflow error when
handling layer/mask information within PSD files, which can be
exploited to cause a heap-based buffer overflow.

Successful exploitation may allow execution of arbitrary code, but
requires tricking an user into opening specially crafted PSD file.

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5) Solution 

Update to version 6.2.6.

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6) Time Table 

05/05/2014 - Vendor notified of issues.
05/05/2014 - Vendor confirms receipt.
27/05/2014 - Request for status update.
27/05/2014 - Vendor requests delay.
27/05/2014 - Preliminary release date adjusted to June 25th, 2014.
03/06/2014 - Vendor provides preliminary fix.
04/06/2014 - Vendor notified of fix confirmation.
05/06/2014 - Vendor plans update release for June 13th, 2014.
25/06/2014 - Query regarding unavailability of fixed version.
30/06/2014 - Vendor confirms release problems for non-Apple products.
30/06/2014 - Vendor plans new update release for July 10th, 2014.
30/06/2014 - Preliminary release date adjusted to July 11th, 2014.
14/07/2014 - Another query regarding unavailability of fixed version.
16/07/2014 - Vendor provides working links.
18/07/2014 - Public disclosure.

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7) Credits 

Discovered by Dmitry Janushkevich, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
the CVE-2014-3938 identifier for the vulnerability.
 
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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/2014-6/

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

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