Main Vulnerability Database Vulnerabilities #VU5666

Improper input validation in Microsoft products - CVE-2015-2431

Published: February 8, 2017 / Updated: September 14, 2018

Vulnerability identifier: #VU5666

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2015-2431

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vulnerability details

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

The vulnerability exists due to improper handling of Office Graphics Library (OGL) fonts by Microsoft Office. A remote attacker can create a specially crafted document containing embedded OGL font, trick the victim into opening it and execute arbitrary code with privileges of the current user.

Successful exploitation of this vulnerability results in arbitrary code execution on the vulnerable system.

Affected software

Microsoft Office
Microsoft Live Meeting
Microsoft Lync

How to mitigate CVE-2015-2431

Install update from vendor's website.

Links to Public Exploits and PoC-codes

Exploit #1010 - Microsoft Office 2007 - 'OGL.dll' DpOutputSpanStretch::OutputSpan Out of Bounds Write (MS15-080) (March 18, 2020)

External References

https://technet.microsoft.com/en-us/library/security/ms15-080.aspx