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Zero Day Initiative Advisory 11-298

Zero Day Initiative Advisory 11-298
Posted Oct 26, 2011
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 11-298 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Reader. 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 Adobe Image parsing library. When Adobe Reader tries to parse an .IFF image. While it tries to copy the image data from the RGBA chunk insufficient boundary checks are performed on a row counter which could lead to a heap overflow. This could result in remote code execution with the rights of the current user.

tags | advisory, remote, overflow, arbitrary, code execution
advisories | CVE-2011-2436
SHA-256 | 7a7c5fc669ce9201949022c7f4d2f348d5a3a5565c7784c167c86cd5c86f2f9b

Zero Day Initiative Advisory 11-298

Change Mirror Download
ZDI-11-298 : Adobe Reader U3D IFF RGBA Parsing Remote Code Execution
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-11-298
October 26, 2011

-- CVE ID:
CVE-2011-2436

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

-- Affected Vendors:

Adobe



-- Affected Products:

Adobe Reader



-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Adobe Reader. 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 Adobe Image parsing library. When
Adobe Reader tries to parse an .IFF image. While it tries to copy the
image data from the RGBA chunk insufficient boundary checks are
performed on a row counter which could lead to a heap overflow. This
could result in remote code execution with the rights of the current user.

-- Vendor Response:

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

http://www.adobe.com/support/security/bulletins/apsb11-24.html



-- Disclosure Timeline:
2011-05-12 - Vulnerability reported to vendor
2011-10-26 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:

* binaryproof



-- 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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