TippingPoint Zero Day Initiative
 

Microsoft Windows JavaScript Spread Operator Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-16-535: October 11th, 2016

CVE ID

CVSS Score

Affected Vendors

Affected Products

    Windows

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Windows. 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 processing of the JavaScript spread operator, as implemented in chakra.dll. By performing actions in JavaScript an attacker can trigger an overflow of a stack-based buffer. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.

Vendor Response

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

Disclosure Timeline

    2016-07-29 - Vulnerability reported to vendor
    2016-10-11 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Richard Zhu (fluorescence)