Multiple Vulnerabilities in Google Chrome Could Allow for Remote Code Execution

ITS Advisory Number: 
2016-123
Date(s) Issued: 
Thursday, July 21, 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 52.0.2743.82
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:

  • Sandbox escape in PPAI (CVE-2016-1706)
  • URL spoofing in iOS (CVE-2016-1707)
  • Use-after-free in Extensions (CVE-2016-1708)
  • Heap-based buffer-overflow that exists in sfntly (CVE-2016-1709)
  • Same-origin bypass in Blink. (CVE-2016-1710, CVE-2016-1711)   
  • Use-after-free error in Blink. (CVE-2016-5127)    
  • Same-origin bypass in V8. (CVE-2016-5128)    
  • Memory corruption vulnerability that exists in V8. (CVE-2016-5129)   
  • URL spoofing error. (CVE-2016-5130)    
  • Use-after-free error in libxml. (CVE-2016-5131)    
  • Limited same-origin bypass error in Service Workers. (CVE-2016-5132)    
  • Origin confusion error in proxy authentication. (CVE-2016-5133)    
  • Information-disclosure vulnerability that exists due to URL leakage through PAC script. (CVE-2016-5134)    
  • Content security-policy bypass. (CVE-2016-5135)    
  • Use-after-free error in extensions. (CVE-2016-5136)    
  • Information-disclosure vulnerability that exists due to history sniffing with HSTS and CSP. (CVE-2016-5137)    
  • Multiple unspecified security vulnerabilities. (CVE-2016-1705)        

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, apply the appropriate patches provided by Google to vulnerable systems immediately.
  • 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.