Apple QuickTime 'QuickTimeStreaming.qtx' Remote Stack Buffer Overflow Vulnerability



Date Discovered

July 26, 2010


Apple QuickTime is prone to a stack-based buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied data An attacker can exploit this issue to execute arbitrary code in the context of the affected application. Failed exploit attempts will likely result in denial-of-service conditions. QuickTime 7.6.6 (1671) for Windows is vulnerable; other versions may also be affected.

Technologies Affected

  • Apple QuickTime Player 7.0.0
  • Apple QuickTime Player 7.0.1
  • Apple QuickTime Player 7.0.2
  • Apple QuickTime Player 7.0.3
  • Apple QuickTime Player 7.0.4
  • Apple QuickTime Player 7.0.8
  • Apple QuickTime Player 7.1
  • Apple QuickTime Player 7.1.1
  • Apple QuickTime Player 7.1.2
  • Apple QuickTime Player 7.1.3
  • Apple QuickTime Player 7.1.4
  • Apple QuickTime Player 7.1.5
  • Apple QuickTime Player 7.1.6
  • Apple QuickTime Player 7.2
  • Apple QuickTime Player 7.2.0
  • Apple QuickTime Player 7.2.1
  • Apple QuickTime Player 7.3
  • Apple QuickTime Player 7.3.1
  • Apple QuickTime Player
  • Apple QuickTime Player 7.4
  • Apple QuickTime Player 7.4.1
  • Apple QuickTime Player 7.4.5
  • Apple QuickTime Player 7.5
  • Apple QuickTime Player 7.5.5
  • Apple QuickTime Player 7.6
  • Apple QuickTime Player 7.6.1
  • Apple QuickTime Player 7.6.2
  • Apple QuickTime Player 7.6.4
  • Apple QuickTime Player 7.6.5
  • Apple QuickTime Player 7.6.6 (1671)
  • Apple QuickTime Player 7.6.6


Run all software as a nonprivileged user with minimal access rights.
To limit the potential damage that a successful exploit may achieve, run all nonadministrative software as a regular user with the least amount of privileges required to successfully operate.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Do not accept or execute files from untrusted or unknown sources.
To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.

Do not follow links provided by unknown or untrusted sources.
Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.

Implement multiple redundant layers of security.
Since these issues may be leveraged to execute code, we recommend memory-protection schemes, such as nonexecutable stack/heap configurations and randomly mapped memory segments. This tactic may complicate exploits of memory-corruption vulnerabilities.

Vendor updates are available. Please see the referenced advisory for more information.



Krystian Kloskowski (h07)

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