1. Ubuntu Security Notices
  2. USN-7210-1

USN-7210-1: .NET vulnerabilities

Publication date

16 January 2025

Overview

Several security issues were fixed in .NET.

Releases

Packages

  • dotnet8 - .NET CLI tools and runtime
  • dotnet9 - .NET CLI tools and runtime

Details

It was discovered that .NET did not properly handle input provided to its
Convert.TryToHexString method. An attacker could possibly use this issue
to execute arbitrary code. (CVE-2025-21171)

It was discovered that .NET did not properly handle an integer overflow
when processing certain specially crafted files. An attacker could
possibly use this issue to execute arbitrary code. (CVE-2025-21172)

Daniel Plaisted and Noah Gilson discovered that .NET insecurely handled
temporary file usage which could result in malicious package dependency
injection. An attacker could possibly use this issue to elevate privileges.
(CVE-2025-21173)

It was discovered that .NET did not properly perform input data validation
when processing certain specially crafted files. An attacker could
possibly use this issue to execute...

It was discovered that .NET did not properly handle input provided to its
Convert.TryToHexString method. An attacker could possibly use this issue
to execute arbitrary code. (CVE-2025-21171)

It was discovered that .NET did not properly handle an integer overflow
when processing certain specially crafted files. An attacker could
possibly use this issue to execute arbitrary code. (CVE-2025-21172)

Daniel Plaisted and Noah Gilson discovered that .NET insecurely handled
temporary file usage which could result in malicious package dependency
injection. An attacker could possibly use this issue to elevate privileges.
(CVE-2025-21173)

It was discovered that .NET did not properly perform input data validation
when processing certain specially crafted files. An attacker could
possibly use this issue to execute arbitrary code. (CVE-2025-21176)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
24.10 oracular aspnetcore-runtime-8.0 –  8.0.12-0ubuntu1~24.10.1
aspnetcore-runtime-9.0 –  9.0.1-0ubuntu1~24.10.1
dotnet-host-8.0 –  8.0.12-0ubuntu1~24.10.1
dotnet-host-9.0 –  9.0.1-0ubuntu1~24.10.1
dotnet-hostfxr-8.0 –  8.0.12-0ubuntu1~24.10.1
dotnet-hostfxr-9.0 –  9.0.1-0ubuntu1~24.10.1
dotnet-runtime-8.0 –  8.0.12-0ubuntu1~24.10.1
dotnet-runtime-9.0 –  9.0.1-0ubuntu1~24.10.1
dotnet-sdk-8.0 –  8.0.112-0ubuntu1~24.10.1
dotnet-sdk-9.0 –  9.0.102-0ubuntu1~24.10.1
dotnet8 –  8.0.112-8.0.12-0ubuntu1~24.10.1
dotnet9 –  9.0.102-9.0.1-0ubuntu1~24.10.1
24.04 noble aspnetcore-runtime-8.0 –  8.0.12-0ubuntu1~24.04.1
dotnet-host-8.0 –  8.0.12-0ubuntu1~24.04.1
dotnet-hostfxr-8.0 –  8.0.12-0ubuntu1~24.04.1
dotnet-runtime-8.0 –  8.0.12-0ubuntu1~24.04.1
dotnet-sdk-8.0 –  8.0.112-0ubuntu1~24.04.1
dotnet8 –  8.0.112-8.0.12-0ubuntu1~24.04.1
22.04 jammy aspnetcore-runtime-8.0 –  8.0.12-0ubuntu1~22.04.1
dotnet-host-8.0 –  8.0.12-0ubuntu1~22.04.1
dotnet-hostfxr-8.0 –  8.0.12-0ubuntu1~22.04.1
dotnet-runtime-8.0 –  8.0.12-0ubuntu1~22.04.1
dotnet-sdk-8.0 –  8.0.112-0ubuntu1~22.04.1
dotnet8 –  8.0.112-8.0.12-0ubuntu1~22.04.1

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References

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