.NET Core and Visual Studio Information Disclosure Vulnerability
Released: Aug 10, 2021
Last updated: Aug 19, 2021
- Assigning CNA
- Microsoft
- CVE.org link
- CVE-2021-34485
Exploitability
The following table provides an exploitability assessment for this vulnerability at the time of original publication.
- Publicly disclosed
- No
- Exploited
- No
- Exploitability assessment
- Exploitation Less Likely
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 the contents of a specific dump file. The attacker needs to have local access to the target system and the dump file needs to be created in a specific way by a target on that same system.
Acknowledgements
Security Updates
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle.
Disclaimer
Revisions
To comprehensively address this vulnerability, Microsoft has released .NET Core 2.1 Build Number 2.1.30. Customers who have downloaded Build 2.1.29 should download and install Build 2.1.30 to be fully protected from this vulnerability.
Revised the Security Updates table to include PowerShell 7.0 and PowerShell 7.1 because these versions of PowerShell 7 incorporate the versions of .NET Core that are affected by this vulnerability. See https://github.com/PowerShell/Announcements/issues/24 for more information.
Information published.
In the Security Updates table, added links to the Release Notes. This is an informational change only.