Multiple Vulnerabilities in Google Chrome Could Allow for Remote Code Execution

ITS Advisory Number:

2017-041

Date(s) Issued:

Thursday, April 20, 2017

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 58.0.3029.81

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:

Type confusion in PDFium (CVE-2017-5057).
Heap use after free in Print Preview (CVE-2017-5058).
Type confusion in Blink (CVE-2017-5059).
URL spoofing in Omnibox (CVE-2017-5060, CVE-2017-5061, CVE-2017-5067).
Use after free in Chrome Apps (CVE-2017-5062).
Heap overflow in Skia (CVE-2017-5063).
Use after free in Blink (CVE-2017-5064).
Incorrect UI in Blink (CVE-2017-5065).
Incorrect signature handing in Networking (CVE-2017-5066).
Cross-origin bypass in Blink (CVE-2017-5069).

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, immediately apply patches provided by Google to vulnerable systems.
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.
Apply the Principle of Least Privilege to all systems and services.

References:

Google:

https://chromereleases.googleblog.com/2017/04/stable-channel-update-for-desktop.html

CVE:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5057

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5058

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5059

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5060

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5061

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5062

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5063

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5064