CVE-2024-21392: Microsoft Security Advisory : .NET Denial of Service Vulnerability

Quick answers

Is CVE-2024-21392 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2024-21392 being exploited in the wild.

How severe is CVE-2024-21392?

Low severity, with a CVSS score of 3.1, published 12 March 2024.

Which products and versions are affected?

Microsoft.NetCore.App.Runtime.linux-arm (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17; Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17; Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17; Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17; and 8 more.

Is there a fix for CVE-2024-21392?

Yes. Microsoft.NetCore.App.Runtime.linux-arm (NuGet): upgrade to 7.0.17 or later; Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet): upgrade to 7.0.17 or later; Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet): upgrade to 7.0.17 or later; Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NuGet): upgrade to 7.0.17 or later; Microsoft.NetCore.App.Runtime.linux-musl-x64 (NuGet): upgrade to 7.0.17 or later; Microsoft.NetCore.App.Runtime.linux-x64 (NuGet): upgrade to 8.0.3 or later; Microsoft.NetCore.App.Runtime.osx-arm64 (NuGet): upgrade to 7.0.17 or later; Microsoft.NetCore.App.Runtime.osx-x64 (NuGet): upgrade to 8.0.3 or later; Microsoft.NetCore.App.Runtime.win-arm (NuGet): upgrade to 7.0.17 or later; Microsoft.NetCore.App.Runtime.win-arm64 (NuGet): upgrade to 7.0.17 or later; Microsoft.NetCore.App.Runtime.win-x64 (NuGet): upgrade to 8.0.3 or later; Microsoft.NetCore.App.Runtime.win-x86 (NuGet): upgrade to 8.0.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Am I affected by CVE-2024-21392?

Check whether you run Microsoft.NetCore.App.Runtime.linux-arm (NuGet), Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet), Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

• Microsoft.NetCore.App.Runtime.linux-arm (NuGet): upgrade to 7.0.17 or later

  dotnet add package Microsoft.NetCore.App.Runtime.linux-arm --version 7.0.17

• Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet): upgrade to 7.0.17 or later

  dotnet add package Microsoft.NetCore.App.Runtime.linux-arm64 --version 7.0.17

• Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet): upgrade to 7.0.17 or later

  dotnet add package Microsoft.NetCore.App.Runtime.linux-musl-arm --version 7.0.17

• Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NuGet): upgrade to 7.0.17 or later

  dotnet add package Microsoft.NetCore.App.Runtime.linux-musl-arm64 --version 7.0.17

• Microsoft.NetCore.App.Runtime.linux-musl-x64 (NuGet): upgrade to 7.0.17 or later

  dotnet add package Microsoft.NetCore.App.Runtime.linux-musl-x64 --version 7.0.17

• Microsoft.NetCore.App.Runtime.linux-x64 (NuGet): upgrade to 8.0.3 or later

  dotnet add package Microsoft.NetCore.App.Runtime.linux-x64 --version 8.0.3

• Microsoft.NetCore.App.Runtime.osx-arm64 (NuGet): upgrade to 7.0.17 or later

  dotnet add package Microsoft.NetCore.App.Runtime.osx-arm64 --version 7.0.17

• Microsoft.NetCore.App.Runtime.osx-x64 (NuGet): upgrade to 8.0.3 or later

  dotnet add package Microsoft.NetCore.App.Runtime.osx-x64 --version 8.0.3

• Microsoft.NetCore.App.Runtime.win-arm (NuGet): upgrade to 7.0.17 or later

  dotnet add package Microsoft.NetCore.App.Runtime.win-arm --version 7.0.17

• Microsoft.NetCore.App.Runtime.win-arm64 (NuGet): upgrade to 7.0.17 or later

  dotnet add package Microsoft.NetCore.App.Runtime.win-arm64 --version 7.0.17

• Microsoft.NetCore.App.Runtime.win-x64 (NuGet): upgrade to 8.0.3 or later

  dotnet add package Microsoft.NetCore.App.Runtime.win-x64 --version 8.0.3

• Microsoft.NetCore.App.Runtime.win-x86 (NuGet): upgrade to 8.0.3 or later

  dotnet add package Microsoft.NetCore.App.Runtime.win-x86 --version 8.0.3

Affected products

• Microsoft.NetCore.App.Runtime.linux-arm (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17
• Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17
• Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17
• Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17
• Microsoft.NetCore.App.Runtime.linux-musl-x64 (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17
• Microsoft.NetCore.App.Runtime.linux-x64 (NuGet) ECOSYSTEM:introduced=8.0.0,fixed=8.0.3
• Microsoft.NetCore.App.Runtime.osx-arm64 (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17
• Microsoft.NetCore.App.Runtime.osx-x64 (NuGet) ECOSYSTEM:introduced=8.0.0,fixed=8.0.3
• Microsoft.NetCore.App.Runtime.win-arm (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17
• Microsoft.NetCore.App.Runtime.win-arm64 (NuGet) ECOSYSTEM:introduced=7.0.0-preview.1.22076.8,fixed=7.0.17
• Microsoft.NetCore.App.Runtime.win-x64 (NuGet) ECOSYSTEM:introduced=8.0.0,fixed=8.0.3
• Microsoft.NetCore.App.Runtime.win-x86 (NuGet) ECOSYSTEM:introduced=8.0.0,fixed=8.0.3

Identifiers

• CVE-2024-21392
• GHSA-5fxj-whcv-crrc