Adobe Reader DC XFA Array Index Integer Underflow Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Acrobat Reader DC. 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 XFA's Array Index. The issue results from the lack of proper validation of user-supplied data which can result in an integer underflow before allocating a buffer. An attacker can leverage this vulnerability to execute code under the context of the current process.
Additional Details
Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/acrobat/apsb17-11.html
Disclosure Timeline
- 2017-01-09 - Vulnerability reported to vendor
- 2017-04-11 - Coordinated public release of advisory
Credit
Sebastian Apelt
siberas
