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Vulnerability of Windows, .NET, Office, Skype, Lync: four vulnerabilities of Graphics Component

Synthesis of the vulnerability 

An attacker can use several vulnerabilities of Graphics Component of Windows, .NET, Office, Skype, Lync.
Impacted software: Lync, .NET Framework, Office, Access, Office Communicator, Excel, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word, Skype for Business, Windows 10, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 7, Windows 8, Windows RT, Windows Vista.
Severity of this computer vulnerability: 4/4.
Number of vulnerabilities in this bulletin: 4.
Creation date: 12/04/2016.
Références of this announce: 3148522, 684, 707, CERTFR-2016-AVI-122, CERTFR-2016-AVI-123, CVE-2016-0143, CVE-2016-0145, CVE-2016-0165, CVE-2016-0167, MS16-039, VIGILANCE-VUL-19354.

Description of the vulnerability 

Several vulnerabilities were announced in Windows, .NET, Office, Skype, Lync.

An attacker can bypass security features in Win32k, in order to escalate his privileges. [severity:2/4; CVE-2016-0143]

An attacker can generate a memory corruption, in order to trigger a denial of service, and possibly to run code. [severity:4/4; CVE-2016-0145]

An attacker can bypass security features in Win32k, in order to escalate his privileges. [severity:2/4; CVE-2016-0165]

An attacker can bypass security features in Win32k, in order to escalate his privileges. [severity:2/4; CVE-2016-0167]
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This computer threat alert impacts software or systems such as Lync, .NET Framework, Office, Access, Office Communicator, Excel, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word, Skype for Business, Windows 10, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 7, Windows 8, Windows RT, Windows Vista.

Our Vigil@nce team determined that the severity of this weakness announce is critical.

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

This bulletin is about 4 vulnerabilities.

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a beginner ability can exploit this computer weakness bulletin.

Solutions for this threat 

Windows, .NET, Office, Skype, Lync: patch for Graphics Component.
A patch is indicated in information sources.
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