CVE-2020-1342: Microsoft Office Information Disclosure Vulnerability

Overview

Severity
N/A
Category
Information Disclosure
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2020-Jul
Released
2020-07-14
EPSS Score
24.81% (percentile: 96.2%)

Description

An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory. An attacker who successfully exploited the vulnerability could view out of bound memory. Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office software. The security update addresses the vulnerability by properly initializing the affected variable.

FAQ

What type of information could be disclosed by this vulnerability? The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized memory.

Affected Products (22)

Microsoft Office

  • Microsoft SharePoint Enterprise Server 2016
  • Microsoft SharePoint Enterprise Server 2013 Service Pack 1
  • Microsoft SharePoint Server 2019
  • Microsoft Office 2019 for 32-bit editions
  • Microsoft Office 2019 for 64-bit editions
  • Microsoft Office 2019 for Mac
  • Microsoft Office Online Server
  • Microsoft 365 Apps for Enterprise for 32-bit Systems
  • Microsoft 365 Apps for Enterprise for 64-bit Systems
  • Microsoft Word 2016 (32-bit edition)
  • Microsoft Word 2016 (64-bit edition)
  • Microsoft Office 2016 for Mac
  • Microsoft Office 2010 Service Pack 2 (32-bit editions)
  • Microsoft Office 2010 Service Pack 2 (64-bit editions)
  • Microsoft Office Web Apps 2010 Service Pack 2
  • Microsoft Office Web Apps 2013 Service Pack 1
  • Microsoft SharePoint Server 2010 Service Pack 2
  • Microsoft Word 2010 Service Pack 2 (32-bit editions)
  • Microsoft Word 2010 Service Pack 2 (64-bit editions)
  • Microsoft Word 2013 RT Service Pack 1
  • Microsoft Word 2013 Service Pack 1 (32-bit editions)
  • Microsoft Word 2013 Service Pack 1 (64-bit editions)

Security Updates (18)

Acknowledgments

Haifei Li of McAfee IPS Security Research Team, Oleksandr Mirosh (<a href="https://twitter.com/olekmirosh">@olekmirosh</a>) from Micro Focus Fortify

Revision History

  • 2020-07-14: Information published.