Advisory Details

October 13th, 2011

Adobe Reader Image Data Buffer Allocation Integer Overflow Remote Code Execution Vulnerability

ZDI-11-283
ZDI-CAN-1211

CVE ID CVE-2011-2438
CVSS SCORE 7.5, (AV:N/AC:L/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Reader
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11705. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
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 malformed .BMP image with bitfields encoded image data an integer overflow can occur while calculation the size of the image data. This can result in a heap buffer overflow with remote code execution under the context of the current user.

ADDITIONAL DETAILS 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
  • 2011-10-13 - Coordinated public release of advisory
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