Microsoft Office Memory Corruption Vulnerability

1) Memory Corruption

EUVDB-ID: #VU296

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-3313

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

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

The vulnerability exists due to boundary error when parsing objects in memory. A remote attacker can create a specially crafted Office document, convince the victim to open it, trigger memory corruption and execute arbitrary code on the target system with privileges of the current user.

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

Mitigation

Install updates from Microsoft website.

Vulnerable software versions

: 2007 - 2016

Microsoft Office for Mac: 2016

Microsoft Word: Viewer

Microsoft Word for Mac: 2016

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2016-3313

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

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.