CVE-2020-17119: Microsoft Outlook Information Disclosure Vulnerability

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C

Category

Information Disclosure

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2020-Dec

Released

2020-12-08

Last Updated

2020-12-15

EPSS Score

17.82% (percentile: 95.1%)

FAQ

Is the Preview Pane an attack vector for this vulnerability? No, the Preview Pane is not an attack vector. Are the updates for the Microsoft Office 2019 for Mac currently available? The security update for Microsoft Office 2019 for Mac is not immediately available. The update will be released as soon as possible, and when it is available, customers will be notified via a revision to this CVE information. 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 (12)

Microsoft Office

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

Security Updates (7)

• Release Notes
• 4486748
• 4486748
• 4486732
• 4486732
• 4486742
• 4486742

Acknowledgments

working with Trend Micro Zero Day Initiative

Revision History

• 2020-12-08: Information published.
• 2020-12-15: Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not need to take any action. See the Release Notes for more information and download links.