KLA10776 Multiple vulnerabilities in Google Chrome

Multiple serious vulnerabilities have been found in Google Chrome. Malicious users can exploit these vulnerabilities to cause denial of service or execute arbitrary code.

Below is a complete list of vulnerabilities

1. Multiple unknown vulnerabilities at V8 can be exploited to cause denial of service or conduct other unknown impact;
2. An unknown vulnerability can be exploited via vectors related to creating MHTML document to cause denial of service or conduct other unknown impact;
3. An improper data-type mismatch handling at libANGLE can be exploited remotely via a specially designed specially designed shared stages to cause denial of service or conduct other unknown impact;
4. Use-after-free vulnerability at Extensions cam be exploited remotely via a specially designed JavaScript code to cause denial of service or conduct other unknown impact;
5. Use-after-free vulnerability at Navigation can be exploited remotely to cause denial of service or conduct other unknown impact;
6. An improper elements handling at V8 can be exploited remotely via a specially designed JavaScript code to cause denial of service or conduct other unknown impact.

Technical details

Vulnerability (2) related to PageCaptureSaveAsMHTMLFunction::ReturnFailure function in browser/extensions/api/page_capture/page_capture_api.cc and can be exploited via triggering error while MHTML document creation.

Vulnerability (3) related to Program::getUniformInternal function in Program.cpp.

Vulnerability (4) related to GetLoadTimes function in renderer/loadtimes_extension_bindings.cc.

Vulnerability (5) related to RenderWidgetHostImpl::Destroy function in content/browser/renderer_host/render_widget_host_impl.cc.

Vulnerability (6) related to Array.prototype.concat implementation in builtins.cc which does not properly consider element data types.

Original advisories

Google Chrome update blog entry

Related products

Google-Chrome

CVE list

CVE-2016-1648 critical

CVE-2016-1649 critical

CVE-2016-3679 critical

CVE-2016-1650 critical

CVE-2016-1646 critical

CVE-2016-1647 critical

Solution

Update to the latest version. File with name old_chrome can be still detected after update. It caused by Google Chrome update policy which does not remove old versions when installing updates. Try to contact vendor for further delete instructions or ignore such kind of alerts at your own risk.

Get Chrome

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

Affected Products

• Google Chrome versions earlier than 49.0.2623.108