ID

VAR-201108-0027

CVE

CVE-2011-0256

TITLE

Apple of QuickTime Vulnerable to integer overflow

DESCRIPTION

Integer overflow in Apple QuickTime before 7.7 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted track run atoms in a QuickTime movie file. 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 way Quicktime handles the 'trun' atom. Quicktime uses user supplied data in the 'sampleCount' field to calculate a buffer size. An integer wrap can occur that results in the allocation of a memory buffer that is smaller than intended. When Quicktime writes to this buffer it causes a memory corruption that can lead to remote code execution under the context of the current user. Apple Mac OS X is prone to an integer-overflow vulnerability that occurs in QuickTime. Failed exploit attempts will likely result in denial-of-service conditions. The following versions are affected: Mac OS X 10.6 through v10.6.7 Mac OS X Server 10.6 through v10.6.7. Apple QuickTime is a multimedia playback software developed by Apple (Apple). The software is capable of handling multiple sources such as digital video, media segments, and more. ZDI-11-254: Apple QuickTime 'trun' atom sampleCount Integer Overflow Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-11-254 August 16, 2011 -- CVE ID: CVE-2011-0256 -- CVSS: 7.5, (AV:N/AC:L/Au:N/C:P/I:P/A:P) -- Affected Vendors: Apple -- Affected Products: Apple Quicktime -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 11582. -- Vendor Response: Apple has issued an update to correct this vulnerability. More details can be found at: http://support.apple.com/kb/HT4826 -- Disclosure Timeline: 2011-06-03 - Vulnerability reported to vendor 2011-08-16 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Anonymous -- About the Zero Day Initiative (ZDI): Established by TippingPoint, 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: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. TippingPoint does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, TippingPoint 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, TippingPoint provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. Our vulnerability disclosure policy is available online at: http://www.zerodayinitiative.com/advisories/disclosure_policy/ Follow the ZDI on Twitter: http://twitter.com/thezdi _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

digital error

CONFIGURATIONS

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Anonymous

SOURCES

LAST UPDATE DATE

2025-04-11T23:12:09.868000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE