A flaw was found in the way qemu v1.3.0 and later (virtio-rng) validates addresses when guest accesses the config space of a virtio device. If the virtio device has zero/small sized config space, such as virtio-rng, a privileged guest user could use this flaw to access the matching host's qemu address space and thus increase their privileges on the host.

The QEMU embedded within KVM received various security fixes.

Various issues in the block layer have been fixed :

  - A virtio security issue in config io space handling.
    (CVE-2013-2016)

  - A SCSI report LUNs buffer overflow. (CVE-2013-4344)

  - A buffer overflow in the QEMU USB stack. (CVE-2013-4541)

Detections

Analytics

CVE-2013-2016

high

Tenable Plugins

high