Ubuntu Update for Linux kernel vulnerabilities USN-1165-1

Please Install the Updated Packages.

Nelson Elhage discoverd that QEMU did not properly validate certain virtqueue requests from the guest. An attacker could exploit this to cause a denial of service of the guest or possibly execute code with the privileges of the user invoking the program. (CVE-2011-2212) Stefan Hajnoczi discovered that QEMU did not properly perform integer comparisons when performing virtqueue input validation. An attacker could exploit this to cause a denial of service of the guest or possibly execute code with the privileges of the user invoking the program. (CVE-2011-2512) When using QEMU with libvirt or virtualization management software based on libvirt such as Eucalyptus and OpenStack, QEMU guests are individually isolated by an AppArmor profile by default in Ubuntu.

qemu-kvm on Ubuntu 11.04 , Ubuntu 10.10 , Ubuntu 10.04 LTS