QEMU Virtio PCI Crash via Improper IRQFD Release during Boot
CVE-2024-4693 Published on May 14, 2024
Qemu-kvm: virtio-pci: improper release of configure vector leads to guest triggerable crash
A flaw was found in the QEMU Virtio PCI Bindings (hw/virtio/virtio-pci.c). An improper release and use of the irqfd for vector 0 during the boot process leads to a guest triggerable crash via vhost_net_stop(). This flaw allows a malicious guest to crash the QEMU process on the host.
Vulnerability Analysis
CVE-2024-4693 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
Operation on a Resource after Expiration or Release
The software uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked.
Products Associated with CVE-2024-4693
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Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.