Apple QuickTime Packed-bit Decoding Heap Overflow Vulnerability

June 2nd, 2009
ZDI-09-026 ZDI-CAN-469

CVE ID

CVE-2009-0952

CVSS Score

None None

Affected Vendors

Apple

Affected Products

Quicktime

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple QuickTime. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists when the application parses a malformed .PSD image. While decoding the columns, rows and channels in the image header, the application trusts a different length for copying than used for allocating it. This results in a heap overflow and can lead to code execution under the context of the current user.

Additional Details

Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT3591

Disclosure Timeline

  • 2009-04-15 - Vulnerability reported to vendor
  • 2009-06-02 - Coordinated public release of advisory

Credit

Damian Put

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