KubeVirt is a virtual machine management add-on for Kubernetes. Prior to 1.7.0-beta.0, a logic flaw in the virt-controller allows an attacker to disrupt the control over a running VMI by creating a pod with the same labels as the legitimate virt-launcher pod associated with the VMI. This can mislead the virt-controller into associating the fake pod with the VMI, resulting in incorrect status updates and potentially causing a DoS (Denial-of-Service). This vulnerability is fixed in 1.7.0-beta.0.

Affected: Go: kubevirt.io/kubevirt

### Summary _Short summary of the problem. Make the impact and severity as clear as possible.

A logic flaw in the `virt-controller` allows an attacker to disrupt the control over a running VMI by creating a pod with the same labels as the legitimate `virt-launcher` pod associated with the VMI. This can mislead the `virt-controller` into associating the fake pod with the VMI, resulting in incorrect status updates and potentially causing a DoS (Denial-of-Service).

### Details _Give all details on the vulnerability. Pointing to the incriminated source code is very helpful for the maintainer._

A vulnerability has been identified in the logic responsible for reconciling the state of VMI. Specifically, it is possible to associate a malicious attacker-controlled pod with an existing VMI running within the same namespace as the pod, thereby replacing the legitimate `virt-launcher` pod associated with the VMI.

The `virt-launcher` pod is critical for enforcing the isolation mechanisms applied to the QEMU process that runs the virtual machine. It also serves, along with `virt-handler`, as a management interface that allows cluster users, operators, or administrators to control the lifecycle of the VMI (e.g., starting, stopping, or migrating it).

When `virt-controller` receives a notification about a change in a VMI's state, it attempts to identify the corresponding `virt-launcher` pod. This is necessary in several scenarios, including:

- When hardware devices are requested to be…

Security update for kubevirt

Security update for kubevirt

Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure Linux und Microsoft Windows ausnutzen um erhöhte Privilegien zu erlangen, beliebigen Code auszuführen, die Authentifizierung zu umgehen, Spoofing-Angriffe durchzuführen, einen Denial-of-Service-Zustand zu verursachen oder andere, nicht näher spezifizierte Angriffe durchzuführen.