TippingPoint Zero Day Initiative

Bitdefender Internet Security SIS Parsing Integer Overflow Remote Code Execution Vulnerability

ZDI-17-046: January 20th, 2017

CVSS Score

Affected Vendors


Affected Products

    Internet Security

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Bitdefender Internet Security. 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 epoc.xmd. The issue results from the lack of proper validation of user-supplied data which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code under the context of SYSTEM.

Vendor Response

Bitdefender states:

Update to version: 7.68927

Disclosure Timeline

    2017-01-03 - Vulnerability reported to vendor
    2017-01-20 - Coordinated public release of advisory


This vulnerability was discovered by: