SB2024071839 - Denial of service in QEMU Virtio PCI Bindings
Published: July 18, 2024
Security Bulletin ID
SB2024071839
CSH 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 vulnerability.
1) Operation on a Resource after Expiration or Release (CVE-ID: CVE-2024-4693)
CWE-ID: CWE-672 - Operation on a Resource after Expiration or Release
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
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.