| Description: | The libvirt library is a C API for managing and interacting with thevirtualization capabilities of Linux and other operating systems.In addition, libvirt provides tools for remote management ofvirtualized systems.An out-of-bounds read flaw was found in the way libvirt'sqemuDomainGetBlockIoTune() function looked up the disk index in anon-persistent (live) disk configuration while a persistent diskconfiguration was being indexed. A remote attacker able to establish aread-only connection to libvirtd could use this flaw to crash libvirtd or,potentially, leak memory from the libvirtd process. (CVE-2014-3633)A denial of service flaw was found in the way libvirt'svirConnectListAllDomains() function computed the number of used domains.A remote attacker able to establish a read-only connection to libvirtdcould use this flaw to make any domain operations within libvirtunresponsive. (CVE-2014-3657)The CVE-2014-3633 issue was discovered by Luyao Huang of Red Hat.This update also fixes the following bug:* Prior to this update, libvirt was setting the cpuset.mems parameter fordomains with numatune/memory[nodeset] prior to starting them. As aconsequence, domains with such a nodeset, which excluded the NUMA node withDMA and DMA32 zones (found in /proc/zoneinfo), could not be started due tofailed KVM initialization. With this update, libvirt sets the cpuset.memsparameter after the initialization, and domains with any nodeset (in/numatune/memory) can be started without an error. (BZ#1135871)All libvirt users are advised to upgrade to these updated packages, whichcontain backported patches to correct these issues. After installing theupdated packages, libvirtd will be restarted automatically. |