qemu-kvm-0.12.1.2-2.355.AXS4.5

KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware.

Using KVM, one can run multiple virtual machines running unmodified Linux or Windows images. Each virtual machine has private virtualized hardware: a network card, disk, graphics adapter, etc.

Security issues fixed with this release:

• CVE-2013-2007
The qemu guest agent in Qemu 1.4.1 and earlier, as used by Xen, when started in daemon mode, uses weak permissions for certain files, which allows local users to read and write to these files.

Fixed bugs:

• Previously, when using the virtio balloon driver with more than 4 GB of memory, qemu-kvm reported incorrect memory size on QMP events. The culprit integer overflow has been fixed in the code calculations and qemu-kvm works as expected.

• Previously, when changing the status of a network card to "off" to change the status of the respective guest to "down", the network card status was sometimes unexpectedly set to "up" on the guest restart, even if the network was unavailable. This has been fixed.Users will have to stop and restart all the virtual machines for the update to take effect.