The qemuMigrationWaitForSpice function in qemu/qemu_migration.c in libvirt before 1.1.3 does not properly enter a monitor when performing seamless SPICE migration, which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) by causing domblkstat to be called at the same time as the qemuMonitorGetSpiceMigrationStatus function.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2013-7336 from the MITRE CVE dictionary dictionary and NIST NVD.
Not vulnerable.
This issue did not affect the versions of libvirt package as shipped with Red Hat Enterprise Linux 5 and 6 (since http://rhn.redhat.com/errata/RHBA-2013-1581.html, Red Hat Enterprise Linux 6.5 GA).
| Base Score | 5 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 6 (libvirt) | RHBA-2013:1581 | 2013-11-20 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | libvirt | Not affected |
| Red Hat Enterprise Linux 5 | libvirt | Not affected |
Vulmon