libvirt-0.9.10-21.5.0.1.AXS4

Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). The main package includes the libvirtd server exporting the virtualization support.

Security issues fixed with this release:

• CVE-2012-4423
The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.

• CVE-2012-3445
The virTypedParameterArrayClear function in libvirt 0.9.13 does not properly handle virDomain* API calls with typed parameters, which might allow remote authenticated users to cause a denial of service (libvirtd crash) via an RPC command with nparams set to zero, which triggers an out-of-bounds read or a free of an invalid pointer.

Fixed bugs:

• The augeas libvirt was unable to parse the libvirt.conf file if it contained the host_uuid option; this has been fixed.

• Fixed the disk hot-plug functions.

• Fixed the rebase operation; cgroups for the backing files are now relabelled and configured so that, when a virtual machine with an image chain using block device is started, the block rebase works as expected instead of failing on the blockJobAbort() function.

• Previously, when migrating a guest between 2 machines while the tunnelled migration could cause the libvirt daemon to lock up unexpectedly; this has been fixed.

• Depending on the locale in used, libvirt could issue incorrect commands to the hypervisor. This has been fixed.