CVE-2024-4693: Qemu-kvm: virtio-pci: improper release of configure vector leads to guest triggerable crash

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-14 · updated 2026-06-17
Weakness: CWE-672

Description

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.

Affected products

Red Hat Enterprise Linux 9: all versions

References

https://access.redhat.com/security/cve/CVE-2024-4693
https://bugzilla.redhat.com/show_bug.cgi?id=2279965
https://access.redhat.com/security/cve/CVE-2024-4693
https://bugzilla.redhat.com/show_bug.cgi?id=2279965
https://security.netapp.com/advisory/ntap-20240828-0007/

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