The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Microsoft Office, Lync: multiple vulnerabilities

Synthesis of the vulnerability 

An attacker can use several vulnerabilities of Microsoft Office.
Impacted systems: Lync, Office, Access, Office Communicator, Excel, OneNote, Outlook, PowerPoint, Project, Publisher, MOSS, Visio, Word, Skype for Business.
Severity of this alert: 3/4.
Number of vulnerabilities in this bulletin: 7.
Creation date: 10/11/2015.
Références of this alert: 3104540, CERTFR-2015-AVI-473, CVE-2015-2503, CVE-2015-6038, CVE-2015-6091, CVE-2015-6092, CVE-2015-6093, CVE-2015-6094, CVE-2015-6123, MS15-116, VIGILANCE-VUL-18281, ZDI-15-539, ZDI-15-543, ZDI-15-546.

Description of the vulnerability 

Several vulnerabilities were announced in Microsoft Office.

An attacker can generate a memory corruption, in order to trigger a denial of service, and possibly to run code. [severity:3/4; CVE-2015-6038, ZDI-15-543]

An attacker can generate a memory corruption, in order to trigger a denial of service, and possibly to run code. [severity:3/4; CVE-2015-6091]

An attacker can generate a memory corruption, in order to trigger a denial of service, and possibly to run code. [severity:3/4; CVE-2015-6092]

An attacker can generate a memory corruption, in order to trigger a denial of service, and possibly to run code. [severity:3/4; CVE-2015-6093, ZDI-15-539]

An attacker can generate a memory corruption, in order to trigger a denial of service, and possibly to run code. [severity:3/4; CVE-2015-6094, ZDI-15-546]

An attacker can bypass security features, in order to escalate his privileges. [severity:2/4; CVE-2015-2503]

An attacker can deceive the user, in order to redirect him to a malicious site. [severity:1/4; CVE-2015-6123]
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This security weakness impacts software or systems such as Lync, Office, Access, Office Communicator, Excel, OneNote, Outlook, PowerPoint, Project, Publisher, MOSS, Visio, Word, Skype for Business.

Our Vigil@nce team determined that the severity of this threat bulletin is important.

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

This bulletin is about 7 vulnerabilities.

An attacker with a expert ability can exploit this threat.

Solutions for this threat 

Microsoft Office, Lync: patch.
A patch is indicated in information sources.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a computers vulnerabilities alert. The Vigil@nce vulnerability database contains several thousand vulnerabilities.