Advisory Details

April 3rd, 2014

Apple QuickTime dref Atom Remote Code Execution Vulnerability

ZDI-14-046
ZDI-CAN-1940

CVE ID CVE-2014-1247
CVSS SCORE 7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
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 within the handling of the dref atom. It is possible for an attacker to nest atoms within the dref atom that have sizes larger than the enclosing atom. By leveraging this vulnerability, an attacker can execute arbitrary code in 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/HT1222
DISCLOSURE TIMELINE
  • 2013-09-21 - Vulnerability reported to vendor
  • 2014-04-03 - Coordinated public release of advisory
CREDIT Tom Gallagher & Paul Bates
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