CVE-2021-34485: .NET Core and Visual Studio Information Disclosure Vulnerability

Published Aug 10, 2021
·
Updated

.NET Core and Visual Studio Information Disclosure Vulnerability

Affected Software

17 affected componentsFixes available
Microsoft .NET>=5.0<=5.0.8
Microsoft .NET Core>=2.1<=2.1.28
Microsoft .NET Core>=3.1<=3.1.17
Microsoft PowerShell Core>=7.0<7.0.7
Microsoft PowerShell Core>=7.1<7.1.4
Microsoft Visual Studio 2017>=15.0<=15.9
Microsoft Visual Studio 2019>=16.0<=16.10
Microsoft .NET 5.0<5.0.9
5.0.9
Microsoft .NET Core=2.1
2.1.30
Microsoft Visual Studio 2019 (includes 16.0 - 16.9)=16.10
16.10.5
Microsoft PowerShell 7.0<7.0.7
7.0.7
Microsoft .NET Core=3.1
3.1.18
Microsoft Visual Studio 2019 (includes 16.0 – 16.6)=16.7
16.7.18
Microsoft Visual Studio 2019 (includes 16.0 - 16.8)=16.9
16.9.10
Microsoft PowerShell 7.1<7.1.4
7.1.4
Microsoft Visual Studio 2019 (includes 16.0 - 16.3)=16.4
16.4.25
Microsoft Visual Studio 2017 (includes 15.0 - 15.8)=15.9
15.9.38

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 5.0.9
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.10.5
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.1.30
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.1.18
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 7.0.7
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.9.10
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.7.18
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 7.1.4
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.4.25
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 15.9.38

Event History

Aug 10, 2021
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
Aug 12, 2021
CVE Published
via MITRE·06:11 PM
Data Sourced
via MITRE·06:11 PM
DescriptionSeverity
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is CVE-2021-34485?

CVE-2021-34485 is a vulnerability in .NET Core and Visual Studio that allows for information disclosure.

2

How severe is CVE-2021-34485?

CVE-2021-34485 has a severity rating of medium (5.5).

3

Which software is affected by CVE-2021-34485?

CVE-2021-34485 affects Microsoft .NET, Microsoft .NET Core, Microsoft PowerShell Core, Microsoft Visual Studio 2017, and Microsoft Visual Studio 2019.

4

How can I fix CVE-2021-34485?

To fix CVE-2021-34485, it is recommended to update to the latest version of the affected software.

5

Where can I find more information about CVE-2021-34485?

You can find more information about CVE-2021-34485 on the Microsoft Security Guidance Advisory page: [link](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34485)

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