Apple Mac OS X ImageIO Integer Overflow 22/03/2011 Dominic Chell of NGS Secure has discovered a High risk vulnerability in Mac OS X ImageIO. An integer overflow issue exists in ImageIO's handling of JPEG-encoded TIFF images. Viewing a maliciously crafted TIFF image may result in an unexpected application termination or arbitrary code execution Versions affected include: Mac OS X v10.6 through v10.6.6, Mac OS X Server v10.6 through v10.6.6. This issue does not affect systems prior to Mac OS X v10.6 Apple has released a patch that addresses the issue. The announcement of this patch can be found here: http://support.apple.com/kb/HT4581 NGS Secure is going to withhold details of this flaw for three months. This three month window will allow users the time needed to apply the patch before the details are released to the general public. This reflects the NGS Secure approach to responsible disclosure. NGS Secure Research http://www.ngssecure.com ________________________________ Research@NGSSecure NGS Secure , Telephone: Mobile: Fax: Website: www.ngssecure.com Email: research@NGSSecure.com [http://www.nccgroup.com/_client/images/global/NGS%20Secure.jpg] ________________________________ This email is sent for and on behalf of NGS Secure Limited (Registered in England CRN: 04474600). The ultimate holding company is NCC Group plc (Registered in England CRN: 4627044). Registered Office: Manchester Technology Centre, Oxford Road, Manchester, M1 7EF Confidentiality: This e-mail contains proprietary information, some or all of which may be confidential and/or legally privileged. It is for the intended recipient only. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail and then delete the original. If you are not the intended recipient you may not use, disclose, distribute, copy, print or rely on any information contained in this e-mail. You must not inform any other person other than NCC Group or the sender of its existence. For more information about NGS Secure please visit www.ngssecure.com P Before you print think about the ENVIRONMENT