SB2024071839 - Denial of service in QEMU Virtio PCI Bindings
Published: July 18, 2024
Security Bulletin ID
SB2024071839
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Operation on a Resource after Expiration or Release (CVE-ID: CVE-2024-4693)
The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.
The vulnerability exists due to an improper release and use of the irqfd for vector 0 during the boot process in the QEMU Virtio PCI Bindings (hw/virtio/virtio-pci.c). A malicious guest can crash the QUEMU host process via vhost_net_stop().
Remediation
Install update from vendor's website.