CVE-2024-21312: .NET Framework Denial of Service Vulnerability

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Category

Denial of Service

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2024-Jan

Released

2024-01-09

Last Updated

2024-02-13

EPSS Score

5.88% (percentile: 90.6%)

FAQ

According to the CVSS metric, the privileges required is none (PR:N). What does that mean for this vulnerability? The score is based on websites/apps that are configured to allow anonymous access without authentication. When multiple attack vectors can be used, we assign a score based on the scenario with the higher risk.

Affected Products (55)

Developer Tools

• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for ARM64-based Systems
• Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems
• Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems
• Microsoft .NET Framework 4.8 on Windows Server 2016
• Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)
• Microsoft .NET Framework 4.8 on Windows Server 2012
• Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)
• Microsoft .NET Framework 4.8 on Windows Server 2012 R2
• Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 (Server Core installation)
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation)
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for ARM64-based Systems
• ... and 5 more

Security Updates (17)

• 5033920
• 5033910
• 5034278
• 5034279
• 5034273
• 5034272
• 5034276
• 5034274
• 5034273
• 5034119
• 5034269
• 5034278
• 5034279
• 5034272
• 5034276
• 5034274
• 5034278

Acknowledgments

Karel Rymes

Revision History

• 2024-01-09: Information published.
• 2024-01-12: Corrected Download and Article links in the Security Updates table. This is an informational change only.
• 2024-01-22: Corrected Download links in the Security Updates table. This is an informational change only.
• 2024-02-13: To address a known issue with a broken link, corrected Download links in the Security Updates table. This is an informational change only.