Univention Corporate Server 3.2 erratum 218 (security)

There were multiple security issues discovered in Xen:
* Information leak through outs instruction emulation (CVE-2013-4368)
* use-after-free in xc_cpupool_getinfo() (CVE-2014-1950)
* Denial of service in HVMOP_set_mem_access() (CVE-2014-2599)
* Denial of service in HVMOP_set_mem_type() (CVE-2014-3124)
* Hypervisor heap contents leaked to guests (CVE-2014-4021)
* Denial of service in HVMOP_track_dirty_vram() (CVE-2014-7154)
* Missing privilege level checks in x86 HLT, LGDT, LIDT, and LMSW
  emulation (CVE-2014-7155)
* Missing privilege level checks in x86 emulation of software
  interrupts (CVE-2014-7156)
* Improper MSR range used for x2APIC emulation (CVE-2014-7188)