Ubuntu Security Notice 2138-1 - Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Andrew Honig reported a flaw in the apic_get_tmcct function of the Kernel Virtual Machine (KVM) subsystem if the Linux kernel. A guest OS user could exploit this flaw to cause a denial of service or host OS system crash. Various other issues were also addressed.
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