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Vulnerability of Windows: six vulnerabilities of Win32k

Synthesis of the vulnerability

An attacker can use several vulnerabilities of Win32k of Windows.
Severity of this alert: 2/4.
Number of vulnerabilities in this bulletin: 6.
Creation date: 15/07/2015.
Références of this alert: 3070102, CERTFR-2015-AVI-294, CVE-2015-2363, CVE-2015-2365, CVE-2015-2366, CVE-2015-2367, CVE-2015-2381, CVE-2015-2382, MS15-073, VIGILANCE-VUL-17363, ZDI-15-536.

Description of the vulnerability

Several vulnerabilities were announced in Windows.

An attacker can generate a memory corruption, in order to trigger a denial of service, and possibly to run code. [severity:2/4; CVE-2015-2363]

An attacker can generate a memory corruption, in order to trigger a denial of service, and possibly to run code. [severity:2/4; CVE-2015-2365]

An attacker can generate a memory corruption, in order to trigger a denial of service, and possibly to run code. [severity:2/4; CVE-2015-2366]

An attacker can bypass security features, in order to obtain sensitive information about the memory. [severity:1/4; CVE-2015-2367, ZDI-15-536]

An attacker can bypass security features, in order to obtain sensitive information about the memory. [severity:1/4; CVE-2015-2381]

An attacker can bypass security features, in order to obtain sensitive information about the memory. [severity:1/4; CVE-2015-2382]
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This computer threat bulletin impacts software or systems such as Windows 2003, 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 security threat is medium.

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

This bulletin is about 6 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 vulnerability alert.

Solutions for this threat

Windows: patch for Win32k.
A patch is available in information sources.
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