Adobe Photoshop Image Processing Buffer Overflow Vulnerabilities

SA49141

CVE-2012-0275, CVE-2012-4170

31 Aug 2012

03 Sep 2012

Highly Critical

Vendor Patch

Adobe Photoshop CS6 13.x

From remote

System access

This covers vulnerabilities where malicious people are able to gain system access and execute arbitrary code with the privileges of a local user.

Two vulnerabilities have been discovered in Adobe Photoshop, which can be exploited by malicious people to compromise a user's system.

1) A boundary error in the "Standard MultiPlugin.8BF" module when processing a Portable Network Graphics (PNG) image can be exploited to cause a heap-based buffer overflow via a specially crafted "tRNS" chunk size.

2) Insufficient validation in Photoshop.exe when decompressing SGI24LogLum-compressed TIFF images can be exploited via a specially crafted TIFF image to cause a heap-based buffer overflow.

Successful exploitation of the vulnerabilities may allow execution of arbitrary code, but requires tricking a user into opening a malicious image.

Update to version 13.0.1.

1) Francis Provencher via Secunia.
2) Carsten Eiram, Secunia Research.

APSB12-20:
http://www.adobe.com/support/security/bulletins/apsb12-20.html

Secunia Research:
http://secunia.com/secunia_research/2012-29/

Francis Provencher:
http://www.protekresearchlab.com/index.php?option=com_content&;view=article&id=60&Itemid=60