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Vulnerability of Microsoft Office: use after free

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area of Microsoft Office, in order to trigger a denial of service, and possibly to execute code.
Impacted software: Office, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.
Severity of this computer vulnerability: 3/4.
Creation date: 09/12/2014.
Références of this announce: 3017349, CERTFR-2014-AVI-520, CVE-2014-6364, MS14-082, VIGILANCE-VUL-15766.

Description of the vulnerability 

The Microsoft Office suite converts documents to object located in memory.

However, a function frees a memory area before reusing it.

An attacker can therefore force the usage of a freed memory area of Microsoft Office, in order to trigger a denial of service, and possibly to execute code.
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This computer weakness impacts software or systems such as Office, Excel, InfoPath, OneNote, Outlook, PowerPoint, Project, Publisher, Visio, Word.

Our Vigil@nce team determined that the severity of this vulnerability note is important.

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 threat.

Solutions for this threat 

Microsoft Office: patch.
A patch is available in information sources.
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