USN-7105-1: .NET vulnerabilities

Releases

• Ubuntu 24.10

Packages

• dotnet9 - .NET CLI tools and runtime

Details

It was discovered that the NrbfDecoder component in .NET did not properly
handle an instance of a type confusion vulnerability. An authenticated
attacker could possibly use this issue to gain the privileges of another
user and execute arbitrary code. (CVE-2024-43498)

It was discovered that the NrbfDecoder component in .NET did not properly
perform input validation. An unauthenticated remote attacker could possibly
use this issue to cause a denial of service. (CVE-2024-43499)

Update instructions

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

Ubuntu 24.10

• aspnetcore-runtime-9.0 - 9.0.0-rtm-0ubuntu1~24.10.1
• dotnet-host-9.0 - 9.0.0-rtm-0ubuntu1~24.10.1
• dotnet-hostfxr-9.0 - 9.0.0-rtm-0ubuntu1~24.10.1
• dotnet-runtime-9.0 - 9.0.0-rtm-0ubuntu1~24.10.1
• dotnet-sdk-9.0 - 9.0.100-rtm-0ubuntu1~24.10.1
• dotnet-sdk-aot-9.0 - 9.0.100-rtm-0ubuntu1~24.10.1
• dotnet9 - 9.0.100-9.0.0-0ubuntu1~24.10.1

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

References

• CVE-2024-43499
• CVE-2024-43498