ZDI-11-065: Adobe Reader Controlled memset Remote Code Execution Vulnerability

[ZDI Disclosures <zdi-disclosures@xxxxxxxxxxxxxxxx>]

ZDI-11-065: Adobe Reader Controlled memset Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-065

February 8, 2011

-- CVE ID:
CVE-2011-0567

-- CVSS:
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

-- 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 AcroRd32.dll. Initially, a pointer
passed to memset can be miscalculated and the resulting copy operation
corrupts heap memory. Later, the application attempts to use the
modified data which can be leveraged to execute arbitrary code under the
context of the user invoking the Reader application.

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

http://www.adobe.com/support/security/bulletins/apsb11-03.html

-- Disclosure Timeline:
2010-06-30 - Vulnerability reported to vendor
2011-02-08 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Abdullah Ada

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