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kubevirt

A NULL pointer dereference flaw was found in KubeVirt. This flaw allows an attacker who has access to a virtual machine guest on a node with DownwardMetrics enabled to cause a denial of service by issuing a high number of calls to vm-dump-metrics --virtio and then deleting the virtual machine.

CVE-2024-31420 is a NULL pointer dereference vulnerability identified in KubeVirt version 4.15.0, a virtualization management platform for Kubernetes. The flaw arises when DownwardMetrics is enabled on a node, which is a feature that allows virtual machines to expose metrics about themselves to the host environment. An attacker who has access to a virtual machine guest on such a node can repeatedly invoke the vm-dump-metrics command with the --virtio option. This excessive invocation, followed by deletion of the virtual machine, triggers a NULL pointer dereference in the KubeVirt codebase. The NULL pointer dereference leads to a denial of service condition by crashing the affected component or causing it to become unresponsive. The vulnerability requires the attacker to have at least limited privileges (PR:L) within the guest VM but does not require user interaction (UI:N). The CVSS v3.1 base score is 6.5, reflecting a medium severity primarily due to the impact on availability (A:H) without affecting confidentiality or integrity. The attack vector is network-based (AV:N), meaning the attacker can exploit it remotely if they have guest access. No known public exploits or active exploitation have been reported as of the publication date. The vulnerability is specific to KubeVirt 4.15.0 and related to the handling of DownwardMetrics and vm-dump-metrics operations.

Detailed information about CVE-2024-31420: NULL Pointer Dereference. Get real-time updates, technical details, and mitigation strategies.

CVE-2024-31420: NULL Pointer Dereference - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-31420: NULL Pointer Dereference

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