Multiple serious vulnerabilities have been found in Google Chrome. Malicious users can exploit these vulnerabilities to bypass security restrictions, obtain sensitive information or cause denial of service.

Below is a complete list of vulnerabilities

1. An characters handling can be exploited remotely via a specially designed URL to obtain sensitive information; (Android)
2. Race condition can be exploited remotely via renderer process manipulations to bypass security restrictions;
3. An improper memory allocation at V8 can be exploited remotely via a specially designed JavaScript to cause denial of service;
4. An improper creation context usage can be exploited remotely via a specially designed web site to bypass security restrictions;
5. Lack of script execution restrictions at Blink can be exploited remotely via a specially designed web site to bypass security restrictions.

Technical details

Vulnerability (1) related to net/base/escape.cc and net/base/filename_util.cc which mishandles slash and backslash symbols. This vulnerability can be exploited via directory traversal attack.

Vulnerability (2) ResourceDispatcherHostImpl::BeginRequest function in content/browser/loader/resource_dispatcher_host_impl.cc and can allow attacker to conduct arbitrary HTTP requests. This vulnerability can be exploited via access to renderer process and reusing request ID.

Vulnerability (3) related to Zone::New function in zone.cc which does not properly determine when to expand certain memory allocations.

Vulnerability (4) related to forEachForBinding function in WebKit/Source/bindings/core/v8/Iterable.h and can be exploited to bypass Same Origin Policy.

Vulnerability (5) related to TreeScope::adoptIfNeeded function in WebKit/Source/core/dom/TreeScope.cpp at the DOM implementation which does not prevent script execution during node-adoption operations. This vulnerability can be exploited to bypass Same Origin Policy.

Google Chrome versions earlier than 50.0.2661.102 (All branches)

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.
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