Apple QuickTime H.264 Parsing Heap Overflow Vulnerability

Credit: ZDI
Risk: High
Local: Yes
Remote: Yes
CWE: CWE-119

CVSS Base Score: 5.1/10
Impact Subscore: 6.4/10
Exploitability Subscore: 4.9/10
Exploit range: Remote
Attack complexity: High
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

ZDI-06-015: Apple QuickTime H.264 Parsing Heap Overflow Vulnerability May 11, 2006 -- CVE ID: CVE-2006-1463 -- Affected Vendor: Apple -- Affected Products: Apple QuickTime versions prior to 7.1 -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since March 20, 2006 by Digital Vaccine protection filter ID 4183. For further product information on the TippingPoint IPS: -- Vulnerability Details: This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Apple's QuickTime media player. The specific flaw exists within the parsing of H.264 content. The implicit trust of a user-supplied size value during a memory copy loop allows an attacker to create an exploitable memory corruption condition. Exploitation requires that an attacker either coerce the target to open a malformed media file or visit a website embedding the malicious file. -- Vendor Response: Apple has identified and corrected this issue in QuickTime 7.1. Customers can obtain the fix from Apple's Software Downloads web site: For further details see: -- Disclosure Timeline: 2006.03.20 - Vulnerability reported to vendor 2006.03.20 - Digital Vaccine released to TippingPoint customers 2006.05.11 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by ATmaCA. -- About the Zero Day Initiative (ZDI): Established by TippingPoint, a division of 3Com, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: The ZDI is unique in how the acquired vulnerability information is used. 3Com does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, 3Com provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, 3Com provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product.

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