CVE-2020-1503: Microsoft Word Information Disclosure Vulnerability
Overview
- Severity
- N/A
- Category
- Information Disclosure
- Exploit Status
- Not Exploited
- Exploitation Likelihood
- Less Likely
- Patch Tuesday
- 2020-Aug
- Released
- 2020-08-11
- EPSS Score
- 27.30% (percentile: 96.4%)
Description
An information disclosure vulnerability exists when Microsoft Word improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the user’s computer or data.
To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it. An attacker must know the memory address location where the object was created.
The update addresses the vulnerability by changing the way certain Word functions handle objects in memory.
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.
Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.
I have Microsoft Office 2010 installed. Why am I not being offered the 4484492 update?
The 4484492 update only applies to systems running specific configurations of Microsoft Office 2010. Some configurations will not be offered the update.
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
Revision History
- 2020-08-11: Information published.