Memory corruption in Microsoft Office

1) Memory corruption

EUVDB-ID: #VU7225

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8511

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to boundary error when processing Microsoft Office files. A remote attacker can create a specially crafted Microsoft Office file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2010 Service Pack 2 - 2016

Microsoft PowerPoint: 2013 RT Service Pack 1

Microsoft SharePoint Server: 2013 - 2016

Microsoft PowerPoint for Mac: 2011 - 2016

Office Online Server : 2016

Microsoft Office Web Apps Server: 2010 Service Pack 2 - 2013 Service Pack 1

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8511

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.