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Vulnerability of WebKit: information disclosure via State Management

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via State Management of WebKit, in order to obtain sensitive information.
Vulnerable software: Ubuntu, WebKit Original.
Severity of this announce: 2/4.
Creation date: 11/01/2017.
Références of this computer vulnerability: CVE-2016-4613, USN-3166-1, VIGILANCE-VUL-21547.

Description of the vulnerability 

An attacker can bypass access restrictions to data via State Management of WebKit, in order to obtain sensitive information.
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This computer vulnerability note impacts software or systems such as Ubuntu, WebKit Original.

Our Vigil@nce team determined that the severity of this computer vulnerability announce is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this cybersecurity announce.

Solutions for this threat 

Ubuntu: new WebKitGTK+ packages.
New packages are available:
  Ubuntu 16.04 LTS: libjavascriptcoregtk-4.0-18 2.14.2-0ubuntu0.16.04.1, libwebkit2gtk-4.0-37 2.14.2-0ubuntu0.16.04.1
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