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Ubuntu Security Notice USN-7105-1
November 12, 2024
dotnet9 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.10
Summary:
Several security issues were fixed in .NET.
Software Description:
- 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:
  https://ubuntu.com/security/notices/USN-7105-1
  CVE-2024-43498, CVE-2024-43499
Package Information:
https://launchpad.net/ubuntu/+source/dotnet9/9.0.100-9.0.0-0ubuntu1~24.10.1