Vulnerability Note VU#882841
Microsoft Office file format converter memory corruption vulnerability
Original Release date: 10 Apr 2014 | Last revised: 10 Apr 2014

Overview
The Microsoft Office file format converter contains a memory corruption vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code with the privileges of the user.

Description
Microsoft Office file format converter is a component that converts legacy Microsoft Office documents into newer file formats. Microsoft Office Isolated Conversion Environment (MOICE), which is intended to increase the security of Microsoft Office, uses this capability. The Microsoft Office file format converter contains a memory corruption vulnerability.

Impact
By convincing a user to open a specially-crafted Office document, a remote, unauthenticated attacker may be able to execute arbitrary code with the privileges of the user.

Solution
Apply an update
This issue is addressed in Microsoft Security Bulletin MS14-017. Please also consider the following workarounds:
Use the Microsoft Enhanced Mitigation Experience Toolkit

The Microsoft Enhanced Mitigation Experience Toolkit (EMET) can be used to help prevent exploitation of this vulnerability. CERT/CC has created a video tutorial for setting up EMET 3.0 on Windows 7. Note that platforms that do not support ASLR, such as Windows XP and Windows Server 2003, will not receive the same level of protection that modern Windows platforms will.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate UpdatedMicrosoft CorporationAffected11 Sep 201310 Apr 2014If you are a vendor and your product is affected, let
us know.

CVSS Metrics (Learn More)

Group
Score
Vector

Base
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal
7.8
E:POC/RL:OF/RC:C

Environmental
5.9
CDP:ND/TD:M/CR:ND/IR:ND/AR:ND

References

http://technet.microsoft.com/en-us/security/bulletin/ms14-017
http://support.microsoft.com/kb/935865

Credit

This issue was reported by Will Dormann of the CERT/CC.
This document was written by Will Dormann.

Other Information

CVE IDs:
CVE-2014-1757

Date Public:
08 Apr 2014

Date First Published:
10 Apr 2014

Date Last Updated:
10 Apr 2014

Document Revision:
6

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