Vulnerability identifier: #VU286

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-3304

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system
Microsoft Office
Client/Desktop applications / Office applications
Microsoft Word
Client/Desktop applications / Office applications
Skype for Business
Client/Desktop applications / Messaging software
Microsoft Lync
Client/Desktop applications / Messaging software
Microsoft Live Meeting
Client/Desktop applications / Messaging software

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists in Windows font library when handling specially crafted embedded fonts. A remote attacker can create a specially crafted font and execute arbitrary code on the target system with privileges of the current user. The attacker can use a variety of software to deliver malicious font to the target system, including web browsers, emails, office documents.

Successful exploitation of this vulnerability my allow an attacker to run arbitrary code on vulnerable system.

Vulnerable software versions

Windows: Vista, 7

Windows Server: 2008 - 2008 R2

Microsoft Office: 2007, 2010

Microsoft Word:

Skype for Business: 2016

Microsoft Lync:

Microsoft Live Meeting: 2007 Console

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External links
http://technet.microsoft.com/en-us/library/security/ms16-097.aspx

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.