CIS CYBERSECURITY ADVISORIES

MS-ISAC ADVISORY NUMBER:
2015-020

DATE(S) ISSUED:
03/05/2015

SUBJECT:
Multiple Vulnerabilities in Google Chrome Could Allow for Remote Code Execution

OVERVIEW:

Multiple vulnerabilities have been discovered in Google Chrome that 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 result in an attacker gaining the same privileges as the user running the affected application. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

THREAT INTELLIGENCE:

There is no known proof-of-concept code available at this time.

SYSTEM AFFECTED:

  • Google Chrome Prior to 40.0.2272.76

 

RISK:

Government:

  • Large and medium government entities: High
  • Small government entities:High

Businesses:

  • Large and medium business entities: High
  • Small business entities: High

Home users: High

TECHNICAL SUMMARY:

Multiple Vulnerabilities have been discovered in Google Chrome, and have been patched in the latest Stable Channel Update. This update addressed multiple bug fixes, security updates, and feature enhancements including the following:

  • Out-of-bounds write vulnerabilities in Skia filters. [CVE-2015-1213, CVE-2015-1214, CVE-2015-1215]
  • Use-after-free vulnerability in v8 bindings. [CVE-2015-1216]
  • Security vulnerability exists in v8 because of type. [CVE-2015-1217]
  • Use-after-free vulnerability because of DOM error. [CVE-2015-1218]
  • Integer-overflow vulnerability due to WebGL error. [CVE-2015-1219]
  • Use-after-free vulnerability due GIF decoder error. [CVE-2015-1220]
  • Use-after-free vulnerability due to web databases error. [CVE-2015-1221]
  • Use-after-free vulnerability due service workers error. [CVE-2015-1222]
  • Use-after-free vulnerability due to DOM error. [CVE-2015-1223]
  • Security vulnerability due v8 type confusion. [CVE-2015-1230]
  • Out-of-bounds read vulnerability due to vpxdecoder error. [CVE-2015-1224]
  • Out-of-bounds read vulnerability due to an error in pdfium [CVE-2015-1225]
  • Security vulnerability due to debugger validation. [CVE-2015-1226]
  • Security vulnerability due to uninitialized value in blink. [CVE-2015-1227]
  • Security vulnerability due to uninitialized value in rendering. [CVE-2015-1228]
  • Security vulnerability due to proxy-based cookie injection. [CVE-2015-1229]

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Apply appropriate patches provided by Google to vulnerable systems immediately after appropriate testing.
  • 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:

http://googlechromereleases.blogspot.in/2015/03/stable-channel-update.html

CVE:

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1213

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1214

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1215

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1216

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1217

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1218

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1219

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1220

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1221

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1222

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1223

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1224

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1225

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1226

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1227

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1228

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1229

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1230