CVE-2013-6456: Improper Link Resolution Before File Access

The LXC driver lxc/lxcdriver.c in libvirt 1.0.1 through 1.2.1 allows local users to 1 delete arbitrary host devices via the virDomainDeviceDettach API and a symlink attack on /dev in the container; 2 create arbitrary nodes mknod via the virDomainDeviceAttach API and a symlink attack on /dev in th...