Input validation error in .NET and Visual Studio - CVE-2024-21386

Vulnerability identifier: #VU86424

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-21386

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the .NET. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

.NET
Visual Studio
Amazon Linux AMI
Red Hat CodeReady Linux Builder for x86_64
Anolis OS
Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Ubuntu
dotnet-targeting-pack-6.0
aspnetcore-runtime-6.0
dotnet-runtime-6.0
aspnetcore-targeting-pack-6.0
dotnet-hostfxr-6.0
dotnet-host
dotnet-apphost-pack-6.0
dotnet-sdk-6.0 (Ubuntu package)
dotnet6 (Ubuntu package)
dotnet-runtime-6.0 (Ubuntu package)
aspnetcore-runtime-6.0 (Ubuntu package)
dotnet-host (Ubuntu package)
dotnet-hostfxr-6.0 (Ubuntu package)
dotnet6.0
rh-dotnet60-dotnet (Red Hat package)
dotnet6.0 (Red Hat package)
dotnet
dotnet-sdk-6.0
dotnet-sdk-6.0-source-built-artifacts
dotnet-templates-6.0
netstandard-targeting-pack-2.1
dotnet-host-7.0 (Ubuntu package)
dotnet-sdk-7.0 (Ubuntu package)
dotnet-hostfxr-7.0 (Ubuntu package)
dotnet-runtime-7.0 (Ubuntu package)
aspnetcore-runtime-7.0 (Ubuntu package)
dotnet7 (Ubuntu package)
dotnet7.0 (Red Hat package)
dotnet-hostfxr-8.0 (Ubuntu package)
aspnetcore-runtime-8.0 (Ubuntu package)
dotnet-host-8.0 (Ubuntu package)
dotnet-runtime-8.0 (Ubuntu package)
dotnet-sdk-8.0 (Ubuntu package)
dotnet8.0 (Red Hat package)
dotnet8 (Ubuntu package)

Install updates from vendor's website.

dotnet-targeting-pack-6.0 - update to 6.0.27-1.0.1
aspnetcore-runtime-6.0 - update to 6.0.27-1.0.1
dotnet-runtime-6.0 - update to 6.0.27-1.0.1
aspnetcore-targeting-pack-6.0 - update to 6.0.27-1.0.1
dotnet-hostfxr-6.0 - update to 6.0.27-1.0.1
dotnet-host - update to 6.0.27-1.0.1
dotnet-apphost-pack-6.0 - update to 6.0.27-1.0.1
dotnet-sdk-6.0 (Ubuntu package) - addressed in versions 6.0.127-0ubuntu1~22.04.1, 6.0.127-0ubuntu1~23.10.1
dotnet6 (Ubuntu package) - addressed in versions 6.0.127-0ubuntu1~22.04.1, 6.0.127-0ubuntu1~23.10.1
dotnet-runtime-6.0 (Ubuntu package) - addressed in versions 6.0.127-0ubuntu1~22.04.1, 6.0.127-0ubuntu1~23.10.1
aspnetcore-runtime-6.0 (Ubuntu package) - addressed in versions 6.0.127-0ubuntu1~22.04.1, 6.0.127-0ubuntu1~23.10.1
dotnet-host (Ubuntu package) - addressed in versions 6.0.127-0ubuntu1~22.04.1, 6.0.127-0ubuntu1~23.10.1
dotnet-hostfxr-6.0 (Ubuntu package) - addressed in versions 6.0.127-0ubuntu1~22.04.1, 6.0.127-0ubuntu1~23.10.1
dotnet6.0 - update to 6.0.127-1
rh-dotnet60-dotnet (Red Hat package) - update to 6.0.127-1.el7_9
dotnet6.0 (Red Hat package) - addressed in versions 6.0.127-1.el8_9, 6.0.127-1.el9_3
dotnet - update to 6.0.127-1.0.1
dotnet-sdk-6.0 - update to 6.0.127-1.0.1
dotnet-sdk-6.0-source-built-artifacts - update to 6.0.127-1.0.1
dotnet-templates-6.0 - update to 6.0.127-1.0.1
netstandard-targeting-pack-2.1 - update to 6.0.127-1.0.1
dotnet-host-7.0 (Ubuntu package) - addressed in versions 7.0.116-0ubuntu1~22.04.1, 7.0.116-0ubuntu1~23.10.1
dotnet-sdk-7.0 (Ubuntu package) - addressed in versions 7.0.116-0ubuntu1~22.04.1, 7.0.116-0ubuntu1~23.10.1
dotnet-hostfxr-7.0 (Ubuntu package) - addressed in versions 7.0.116-0ubuntu1~22.04.1, 7.0.116-0ubuntu1~23.10.1
dotnet-runtime-7.0 (Ubuntu package) - addressed in versions 7.0.116-0ubuntu1~22.04.1, 7.0.116-0ubuntu1~23.10.1
aspnetcore-runtime-7.0 (Ubuntu package) - addressed in versions 7.0.116-0ubuntu1~22.04.1, 7.0.116-0ubuntu1~23.10.1
dotnet7 (Ubuntu package) - addressed in versions 7.0.116-0ubuntu1~22.04.1, 7.0.116-0ubuntu1~23.10.1
dotnet7.0 (Red Hat package) - addressed in versions 7.0.116-1.el8_9, 7.0.116-1.el9_3
dotnet-hostfxr-8.0 (Ubuntu package) - addressed in versions 8.0.2-0ubuntu1~22.04.1, 8.0.2-0ubuntu1~23.10.1
aspnetcore-runtime-8.0 (Ubuntu package) - addressed in versions 8.0.2-0ubuntu1~22.04.1, 8.0.2-0ubuntu1~23.10.1
dotnet-host-8.0 (Ubuntu package) - addressed in versions 8.0.2-0ubuntu1~22.04.1, 8.0.2-0ubuntu1~23.10.1
dotnet-runtime-8.0 (Ubuntu package) - addressed in versions 8.0.2-0ubuntu1~22.04.1, 8.0.2-0ubuntu1~23.10.1
dotnet-sdk-8.0 (Ubuntu package) - addressed in versions 8.0.102-0ubuntu1~22.04.1, 8.0.102-0ubuntu1~23.10.1
dotnet8.0 (Red Hat package) - addressed in versions 8.0.102-2.el8_9, 8.0.102-2.el9_3
dotnet8 (Ubuntu package) - addressed in versions 8.0.102-8.0.2-0ubuntu1~22.04.1, 8.0.102-8.0.2-0ubuntu1~23.10.1

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21386

• Multiple vulnerabilities in Microsoft .NET
• Red Hat Enterprise Linux 9 update for dotnet7.0
• Red Hat Enterprise Linux 8 update for dotnet7.0
• Red Hat Enterprise Linux 9 update for dotnet6.0
• Red Hat Enterprise Linux 8 update for dotnet6.0
• Ubuntu update for dotnet6
• Red Hat Enterprise Linux 7 update for .NET 6.0
• Red Hat Enterprise Linux 8 update for .NET 8.0
• Red Hat Enterprise Linux 9 update for .NET 8.0
• Amazon Linux AMI update for dotnet6.0
• Anolis OS update for dotnet6.0