Multiple Vulnerabilities in Google Chrome Could Allow for Remote Code Execution

ITS Advisory Number:

2016-197

Date(s) Issued:

Thursday, November 10, 2016

Subject:

Multiple Vulnerabilities in Google Chrome Could Allow for Remote Code Execution

Overview:

Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could result in remote code execution. Google Chrome is a web browser used to access the Internet. These vulnerabilities can be exploited if a user visits, or is redirected to, a specially crafted web page. Successful exploitation of these vulnerabilities could allow an attacker to execute remote code in the context of the browser, obtain sensitive information, bypass security restrictions, or cause denial-of-service conditions.

Systems Affected:

Google Chrome prior to 54.0.2840.99 for Windows
Google Chrome prior to 54.0.2840.98 for Mac

RISK

GOVERNMENT

Large and medium government entities:

High

Small government entities:

Medium

BUSINESS

Large and medium business entities:

High

Small business entities:

Medium

Home Users:

Low

Description:

Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could result in remote code execution. These vulnerabilities can be exploited if a user visits, or is redirected to, a specially crafted web page. Details of the vulnerabilities are as follows:

Heap corruption in FFmpeg (CVE-2016-5199)
Out of bounds memory access in V8 (CVE-2016-5200)
Info leak in extensions (CVE-2016-5201)
Various fixes from internal audits, fuzzing and other initiatives (CVE-2016-5202)

Successful exploitation of these vulnerabilities could allow an attacker to execute remote code in the context of the browser, obtain sensitive information, bypass security restrictions, or cause denial-of-service conditions.

Actions:

After appropriate testing, a the as soon as possible
Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.

References:

Google:

https://googlechromereleases.blogspot.ie/2016/11/stable-channel-update-for-desktop_9.html

CVE:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5199

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5200

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5201

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5202