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.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2013-4153 from the MITRE CVE dictionary dictionary and NIST NVD.
Not vulnerable. This issue did not affect the versions of libvirt as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 6.8 |
|---|---|
| Base Metrics | AV:A/AC:H/Au:N/C:C/I:C/A:C |
| Access Vector | Adjacent Network |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | Complete |
| Integrity Impact | Complete |
| Availability Impact | Complete |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 6 | libvirt | Not affected |
| Red Hat Enterprise Linux 5 | libvirt | Not affected |
Vulmon