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Zero Day Initiative Advisory 12-005

Zero Day Initiative Advisory 12-005
Posted Jan 6, 2012
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 12-05 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple QuickTime Player. 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 how the application decodes video samples encoded with the RLE codec. When decompressing the sample, the application will fail to accommodate for the canvas the sample is rendered into. This can cause a buffer overflow and thus can be taken advantage of in order to gain code execution under the context of the application.

tags | advisory, remote, overflow, arbitrary, code execution
systems | apple
advisories | CVE-2011-3248
MD5 | e2313aba0e79de102b33fcc75a2e53eb

Zero Day Initiative Advisory 12-005

Change Mirror Download
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Hash: SHA1

ZDI-12-005 : Apple Quicktime RLE BGRA Decoding Remote Code Execution
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-005
January 5, 2012

- -- CVE ID:
CVE-2011-3248

- -- CVSS:
7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P

- -- Affected Vendors:

Apple



- -- Affected Products:

Apple Quicktime



- -- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Apple QuickTime Player. 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 how the application decodes video
samples encoded with the RLE codec. When decompressing the sample, the
application will fail to accommodate for the canvas the sample is
rendered into. This can cause a buffer overflow and thus can be taken
advantage of in order to gain code execution under the context of the
application.

- -- Vendor Response:

Apple has issued an update to correct this vulnerability. More details
can be found at:

http://support.apple.com/kb/HT5016




- -- Disclosure Timeline:
2011-10-21 - Vulnerability reported to vendor

2012-01-05 - Coordinated public release of advisory



- -- Credit:
This vulnerability was discovered by:

* Luigi Auriemma



- -- 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
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