Apple has released an additional security advisory and updated software to address the multiple vulnerabilities in Apple QuickTime.
Apple QuickTime versions prior to 7.7.3 contain multiple vulnerabilities that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code on a targeted system.
Multiple buffer overflow vulnerabilities exist while handling user-supplied REGION records in PICT files, transform attributes in text3GTrack elements, style elements in QuickTime TeXML files, QuickTime plug-in handling of MIME types, Targa image files, and rnet boxes in MP4 files.
A memory corruption vulnerability is due to insufficient bounds checking while handling PICT image files.
A use-after-free memory vulnerability exists in the way the QuickTime plug-in handles _qtactivex_ parameters in an HTML object element.
An unauthenticated, remote attacker could exploit these vulnerabilities by convincing a user to visit a malicious web page that is designed to pass crafted parameters or web page elements. Successful exploitation could allow the attacker to cause a DoS condition or execute arbitrary code with the privileges of the user.To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
Successful exploitation of these vulnerabilities could allow the attacker to execute arbitrary code with the privileges of the user. If the user holds elevated privileges, the attacker could execute arbitrary code with elevated privileges. On Windows systems, where users may have elevated privileges, a successful exploit could allow the attacker to cause a complete system compromise.
Proof-of-concept code that exploits a vulnerability with the CVE ID 2012-3752 is available as part of the Metasploit framework.
Users are advised not to follow unsolicited links.
Apple has released a security advisory at the following link:HT5581and HT5672.
Apple has released an updated version at the following links:
Version 2, November 26, 2012, 11:42 AM: Proof-of-concept code that demonstrates an exploit of an Apple QuickTime for Windows vulnerability is publicly available.
Version 1, November 8, 2012, 9:39 AM: Apple QuickTime for Windows contains multiple vulnerabilities that could allow an unauthenticated, remote attacker to cause a denial of service condition or execute arbitrary code on a targeted system. Updates are available.
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