Ubuntu USN · USN-8215-1

.NET vulnerability

Published: Tue, 28 Apr 2026 07:10

CVE-2026-40372

Summary

.NET could be made to crash or run programs as an administrator.

Details

It was discovered that the Microsoft.AspNetCore.DataProtection library in .NET did not properly verify cryptographic signatures under certain conditions. A remote attacker could possibly use this issue to elevate privileges.

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu noble

dotnet10→10.0.107-10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.107-10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet10
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
aspnetcore-runtime-10.0→10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y aspnetcore-runtime-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
aspnetcore-runtime-dbg-10.0→10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y aspnetcore-runtime-dbg-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
aspnetcore-targeting-pack-10.0→10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y aspnetcore-targeting-pack-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-apphost-pack-10.0→10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-apphost-pack-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-host-10.0→10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-host-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-hostfxr-10.0→10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-hostfxr-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-runtime-10.0→10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-runtime-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-runtime-dbg-10.0→10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-runtime-dbg-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-sdk-10.0→10.0.107-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-sdk-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-sdk-10.0-source-built-artifacts→10.0.107-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-sdk-10.0-source-built-artifacts
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-sdk-aot-10.0→10.0.107-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-sdk-aot-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-sdk-dbg-10.0→10.0.107-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-sdk-dbg-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-targeting-pack-10.0→10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-targeting-pack-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-templates-10.0→10.0.107-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-templates-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet10→10.0.107-10.0.7-0ubuntu1~24.04.1apt_upgrade
Standard apt upgrade. Install 10.0.107-10.0.7-0ubuntu1~24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet10
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu questing

dotnet10→10.0.107-10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.107-10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet10
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
aspnetcore-runtime-10.0→10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y aspnetcore-runtime-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
aspnetcore-runtime-dbg-10.0→10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y aspnetcore-runtime-dbg-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
aspnetcore-targeting-pack-10.0→10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y aspnetcore-targeting-pack-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-apphost-pack-10.0→10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-apphost-pack-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-host-10.0→10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-host-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-hostfxr-10.0→10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-hostfxr-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-runtime-10.0→10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-runtime-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-runtime-dbg-10.0→10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-runtime-dbg-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-sdk-10.0→10.0.107-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-sdk-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-sdk-10.0-source-built-artifacts→10.0.107-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-sdk-10.0-source-built-artifacts
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-sdk-aot-10.0→10.0.107-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-sdk-aot-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-sdk-dbg-10.0→10.0.107-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-sdk-dbg-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-targeting-pack-10.0→10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-targeting-pack-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet-templates-10.0→10.0.107-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.107-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet-templates-10.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
dotnet10→10.0.107-10.0.7-0ubuntu1~25.10.1apt_upgrade
Standard apt upgrade. Install 10.0.107-10.0.7-0ubuntu1~25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y dotnet10
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Are YOU affected by USN-8215-1?

5-second check on your actual server. Reads /etc/os-release, uname -r, and dpkg-query; matches against the live USN + Debian Security Tracker feeds; tells you whether USN-8215-1 (and any other live CVE) applies. Anonymous, no signup.

curl https://mindsparkstack.com/scan.sh | bash

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