Multiple Security Vulnerabilities Reported in Google Chrome

ITS Advisory Number: 
2013-076
Date(s) Issued: 
Wednesday, August 21, 2013
Subject: 
Multiple Security Vulnerabilities Reported in Google Chrome
Overview: 

Multiple vulnerabilities have been discovered in Google Chrome that could allow remote code execution, disclosure of sensitive information, or cause denial-of-service conditions. Google Chrome is a web browser used to access the Internet. Details are not currently available that depict accurate attack scenarios, but it is believed that some of the vulnerabilities can be exploited if a user visits, or is redirected to, a specially crafted web page.

Successful exploitation of some of the above vulnerabilities could result in an attacker gaining the same privileges as the user. Depending on the privileges associated with the user, an attacker could install programs; view, change, delete data; or create new accounts with full user rights. Failed exploit attempts will likely cause denial-of-service conditions.

Systems Affected: 
  • Google Chrome Prior to 29.0.1547.57
RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
High
BUSINESS
Large and medium business entities: 
High
Small business entities: 
High
Home Users: 
High
Description: 

Multiple vulnerabilities have been discovered in Google Chrome. Details of these vulnerabilities are as follows:

  • A remote-code execution vulnerability occurs due to an incomplete path sanitization in the file handling. [CVE-2013-2900]
  • An information-disclosure vulnerability occurs due to overly broad permissions on shared memory files. [CVE-2013-2905]
  • An integer-overflow vulnerability occurs due to an error in ANGLE. [CVE-2013-2901]
  • A use-after-free vulnerability exists in XSLT. [CVE-2013-2902]
  • A use-after-free vulnerability exists in media element. [CVE-2013-2903]
  • A use-after-free vulnerability exists in document parsing. [CVE-2013-2904]
  • Multiple security vulnerabilities exist due to an unspecified error. [CVE-2013-2887]

Successful exploitation of some of the above vulnerabilities could result in an attacker gaining the same privileges as the user. Depending on the privileges associated with the user, an attacker could install programs; view, change, delete data; or create new accounts with full user rights. Failed exploit attempts will likely cause denial-of-service conditions.

Successful exploitation of some of the above vulnerabilities could result in an attacker gaining the same privileges as the user. Depending on the privileges associated with the user, an attacker could install programs; view, change, delete data; or create new accounts with full user rights. Failed exploit attempts will likely cause denial-of-service conditions.

Actions: 
  • Update vulnerable Google Chrome products immediately after appropriate testing by following the steps outlined by Google.
  • 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.
References: 
Google:
http://googlechromereleases.blogspot.ie/2013/08/stable-channel-update.html
CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2013-2900
http://cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2013-2905
http://cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2013-2901
http://cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2013-2902
http://cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2013-2903
http://cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2013-2904
http://cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2013-2887
SecurityFocus:
http://www.securityfocus.com/bid/61865