Univention Corporate Server 4.0 erratum 15 (security)

The Linux kernel in Univention Corporate Server 4.0 has been updated to 
3.16.7-ckt2. It provides many bugfixes and fixes several vulnerabilities:
* Denial of service in handling on MSR registers in KVM (CVE-2014-3610)
* Race condition in the PIT handler in KVM (CVE-2014-3611)
* Denial of service in VMX handling in KVM (CVE-2014-3646)
* Denial of service in KVM instruction emulation (CVE-2014-3647)
* Denial of service or privilege escalation in amd64 register 
  handling (CVE-2014-9090, CVE-2014-9322)
* Three denial of service vulnerabilities in SCTP (CVE-2014-3673, 
  CVE-2014-3687, CVE-2014-3688)
* Denial of service in the VMX handling in KVM (CVE-2014-3690)
* Local denial of service in syscall perf profiling (CVE-2014-7825)
* Privilege escalation in ftrace syscall tracing (CVE-2014-7826)
* Denial of service in SCTP (CVE-2014-7841)
* Denial of service in KVM (CVE-2014-7842)
* Denial of service in VFS and user namespaces (CVE-2014-7970)
* Denial of service in umount() and user namespaces (CVE-2014-7975)
* Race condition in ext4 permission handling (CVE-2014-8086)
* Buffer overflow in ttusb-dec (CVE-2014-8884)