CVE-2020-16937: .NET Framework Information Disclosure Vulnerability

Published Oct 16, 2020
·
Updated

<p>An information disclosure vulnerability exists when the .NET Framework improperly handles objects in memory. An attacker who successfully exploited the vulnerability could disclose contents of an affected system's memory.</p> <p>To exploit the vulnerability, an authenticated attacker would need to run a specially crafted application.</p> <p>The update addresses the vulnerability by correcting how the .NET Framework handles objects in memory.</p>

Other sources

An information disclosure vulnerability exists when the .NET Framework improperly handles objects in memory, aka '.NET Framework Information Disclosure Vulnerability'.

Affected Software

104 affected components
Microsoft .NET Framework=2.0-sp2
Microsoft Windows Server 2008=sp2
Microsoft .NET Framework=3.5
Microsoft Windows 8.1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft .NET Framework=4.6.2
Microsoft .NET Framework=4.7
Microsoft .NET Framework=4.7.1
Microsoft .NET Framework=4.7.2
Microsoft Windows 10=1607
Microsoft Windows Server 2016
Microsoft .NET Framework=4.6
Microsoft .NET Framework=4.6.1
Microsoft Windows 10
Microsoft Windows 10=1709
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows Server 2019
Microsoft .NET Framework=4.8
Microsoft Windows 10=1903
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows Server 2016=1903
Microsoft Windows Server 2016=1909
Microsoft Windows Server 2016=2004
Microsoft .NET Framework=3.5.1
Microsoft Windows 7=sp1
Microsoft Windows Server 2008=r2-sp1
Microsoft .NET Framework=4.5.2
Microsoft Windows RT 8.1
All of the following
Microsoft .NET Framework=2.0-sp2
Microsoft Windows Server 2008=sp2
All of the following
Microsoft .NET Framework=3.5
Any of the following
Microsoft Windows 8.1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.6.2
Microsoft .NET Framework=4.7
Microsoft .NET Framework=4.7.1
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows 10=1607
Microsoft Windows Server 2016
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.6
Microsoft .NET Framework=4.6.1
Microsoft .NET Framework=4.6.2
Microsoft Windows 10
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.1
Microsoft .NET Framework=4.7.2
Microsoft Windows 10=1709
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows Server 2019
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows 10=1809
Microsoft Windows 10=1903
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows Server 2016=1903
Microsoft Windows Server 2016=1909
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019
All of the following
Microsoft .NET Framework=3.5.1
Any of the following
Microsoft Windows 7=sp1
Microsoft Windows Server 2008=r2-sp1
All of the following
Microsoft .NET Framework=4.5.2
Any of the following
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
All of the following
Microsoft .NET Framework=4.6
Microsoft Windows Server 2008=sp2
All of the following
Any of the following
Microsoft .NET Framework=4.6
Microsoft .NET Framework=4.6.1
Microsoft .NET Framework=4.6.2
Microsoft .NET Framework=4.7
Microsoft .NET Framework=4.7.1
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
All of the following
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows 10=1607
Microsoft Windows 10=1709
Microsoft Windows 10=1803
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016

Event History

Oct 16, 2020
CVE Published
via MITRE·10:17 PM
Data Sourced
via MITRE·10:17 PM
DescriptionSeverity
Data Sourced
via NVD·11:15 PM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is CVE-2020-16937?

CVE-2020-16937 is an information disclosure vulnerability in the .NET Framework.

2

What is the severity of CVE-2020-16937?

The severity of CVE-2020-16937 is medium, with a CVSS score of 5.5.

3

Which software is affected by CVE-2020-16937?

The affected software includes Microsoft .NET Framework versions 2.0 SP2, 3.5, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, and 4.8.

4

How does CVE-2020-16937 work?

CVE-2020-16937 allows for information disclosure in the .NET Framework due to improper handling of objects in memory.

5

Where can I find more information about CVE-2020-16937?

More information about CVE-2020-16937 can be found on the Microsoft Security Guidance Advisory page: [link](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16937)

Contact

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