CVE-2013-4153: Red Hat Libvirt

Medium severity, CVSS 5.0. EPSS: 1.7% chance of exploitation in the next 30 days.

Double free vulnerability in the qemuAgentGetVCPUs function in qemu/qemu_agent.c in libvirt 1.0.6 through 1.1.0 allows remote attackers to cause a denial of service (daemon crash) via a cpu count request, as demonstrated by the "virsh vcpucount dom --guest" command.

Affected products

• Red Hat Libvirt: version 1.0.6 only; version 1.1.0 only

Published 2013-09-30. Last modified 2026-06-16.