Ubuntu 19.10: USN-4191-1 Critical: QEMU Denial Of Service Issues

The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10: qemu 1:4.0+dfsg-0ubuntu9.1 qemu-kvm 1:4.0+dfsg-0ubuntu9.1 qemu-system-common 1:4.0+dfsg-0ubuntu9.1 qemu-system-gui 1:4.0+dfsg-0ubuntu9.1 qemu-system-x86 1:4.0+dfsg-0ubuntu9.1 qemu-user-static 1:4.0+dfsg-0ubuntu9.1 qemu-utils 1:4.0+dfsg-0ubuntu9.1 Ubuntu 19.04: qemu 1:3.1+dfsg-2ubuntu3.6 qemu-kvm 1:3.1+dfsg-2ubuntu3.6 qemu-system-common 1:3.1+dfsg-2ubuntu3.6 qemu-system-gui 1:3.1+dfsg-2ubuntu3.6 qemu-system-x86 1:3.1+dfsg-2ubuntu3.6 qemu-user-static 1:3.1+dfsg-2ubuntu3.6 qemu-utils 1:3.1+dfsg-2ubuntu3.6 Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.20 qemu-kvm 1:2.11+dfsg-1ubuntu7.20 qemu-system-common 1:2.11+dfsg-1ubuntu7.20 qemu-system-x86 1:2.11+dfsg-1ubuntu7.20 qemu-user-static 1:2.11+dfsg-1ubuntu7.20 qemu-utils 1:2.11+dfsg-1ubuntu7.20 Ubuntu 16.04 LTS: qemu 1:2.5+dfsg-5ubuntu10.42 qemu-kvm 1:2.5+dfsg-5ubuntu10.42 qemu-system-common 1:2.5+dfsg-5ubuntu10.42 qemu-system-x86 1:2.5+dfsg-5ubuntu10.42 qemu-user-static 1:2.5+dfsg-5ubuntu10.42 qemu-utils 1:2.5+dfsg-5ubuntu10.42 After a standard system update you need to restart all QEMU virtual machines to make all the necessary changes.