Advisory Details

November 5th, 2007

Apple Quicktime PICT File PackBitsRgn Parsing Heap Corruption Vulnerability

ZDI-07-066
ZDI-CAN-240

CVE ID CVE-2007-4676
CVSS SCORE
AFFECTED VENDORS Apple
AFFECTED PRODUCTS Quicktime
VULNERABILITY DETAILS

This vulnerability allows 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 exist in the parsing of the PackBitsRgn field (Opcode 0x0099). Due to improper handling of a malformed element in the structure, heap corruption occurs. If properly constructed this can lead to code execution running under the credentials of the user.

VENDOR RESPONSE Apple has issued an update to correct this vulnerability. More details can be found at:
http://docs.info.apple.com/article.html?artnum=306896
DISCLOSURE TIMELINE
  • 2007-09-14 - Vulnerability reported to vendor
  • 2007-11-05 - Coordinated public release of advisory
CREDIT Ruben Santamarta of reversemode.com
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