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Vulnerability of Windows, Office: three vulnerabilities of XML Core Services

Synthesis of the vulnerability 

An attacker can use several vulnerabilities of XML Core Services of Windows.
Vulnerable products: Office, Access, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 7, Windows 8, Windows RT, Windows Vista.
Severity of this weakness: 2/4.
Number of vulnerabilities in this bulletin: 3.
Creation date: 11/08/2015.
Références of this bulletin: 3080129, CERTFR-2015-AVI-338, CVE-2015-2434, CVE-2015-2440, CVE-2015-2471, MS15-084, VIGILANCE-VUL-17634, ZDI-15-381.

Description of the vulnerability 

Several vulnerabilities were announced in XML Core Services used by Windows/Office.

An attacker can force the usage of SSLv2, in order to obtain sensitive information. [severity:2/4; CVE-2015-2434]

An attacker can guess the memory layout of a process, to bypass ASLR, in order to ease the next step of the attack. [severity:2/4; CVE-2015-2440, ZDI-15-381]

An attacker can force the usage of SSLv2, in order to obtain sensitive information. [severity:2/4; CVE-2015-2471]
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This computer vulnerability announce impacts software or systems such as Office, Access, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word, 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 cybersecurity bulletin is medium.

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

This bulletin is about 3 vulnerabilities.

An attacker with a expert ability can exploit this threat alert.

Solutions for this threat 

Windows, Office: patch for XML Core Services.
A patch is available in information sources.
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