========================================================================= Ubuntu Security Notice USN-4135-1 September 18, 2019 linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-gke-5.0, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-raspi2: Linux kernel for Raspberry Pi 2 - linux-snapdragon: Linux kernel for Snapdragon processors - linux-gke-4.15: Linux kernel for Google Container Engine (GKE) systems - linux-gke-5.0: Linux kernel for Google Container Engine (GKE) systems - linux-hwe: Linux hardware enablement (HWE) kernel - linux-oem: Linux kernel for OEM processors - linux-oracle: Linux kernel for Oracle Cloud systems - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems Details: Peter Pi discovered a buffer overflow in the virtio network backend (vhost_net) implementation in the Linux kernel. An attacker in a guest may be able to use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS. (CVE-2019-14835) It was discovered that the Linux kernel on PowerPC architectures did not properly handle Facility Unavailable exceptions in some situations. A local attacker could use this to expose sensitive information. (CVE-2019-15030) It was discovered that the Linux kernel on PowerPC architectures did not properly handle exceptions on interrupts in some situations. A local attacker could use this to expose sensitive information. (CVE-2019-15031) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04: linux-image-5.0.0-1016-aws 5.0.0-1016.18 linux-image-5.0.0-1017-gcp 5.0.0-1017.17 linux-image-5.0.0-1017-kvm 5.0.0-1017.18 linux-image-5.0.0-1017-raspi2 5.0.0-1017.17 linux-image-5.0.0-1020-azure 5.0.0-1020.21 linux-image-5.0.0-1021-snapdragon 5.0.0-1021.22 linux-image-5.0.0-29-generic 5.0.0-29.31 linux-image-5.0.0-29-generic-lpae 5.0.0-29.31 linux-image-5.0.0-29-lowlatency 5.0.0-29.31 linux-image-aws 5.0.0.1016.17 linux-image-azure 5.0.0.1020.19 linux-image-gcp 5.0.0.1017.43 linux-image-generic 5.0.0.29.30 linux-image-generic-lpae 5.0.0.29.30 linux-image-gke 5.0.0.1017.43 linux-image-kvm 5.0.0.1017.17 linux-image-lowlatency 5.0.0.29.30 linux-image-raspi2 5.0.0.1017.14 linux-image-snapdragon 5.0.0.1021.14 linux-image-virtual 5.0.0.29.30 Ubuntu 18.04 LTS: linux-image-4.15.0-1025-oracle 4.15.0-1025.28 linux-image-4.15.0-1044-gcp 4.15.0-1044.70 linux-image-4.15.0-1044-gke 4.15.0-1044.46 linux-image-4.15.0-1046-kvm 4.15.0-1046.46 linux-image-4.15.0-1047-raspi2 4.15.0-1047.51 linux-image-4.15.0-1050-aws 4.15.0-1050.52 linux-image-4.15.0-1056-oem 4.15.0-1056.65 linux-image-4.15.0-1064-snapdragon 4.15.0-1064.71 linux-image-4.15.0-64-generic 4.15.0-64.73 linux-image-4.15.0-64-generic-lpae 4.15.0-64.73 linux-image-4.15.0-64-lowlatency 4.15.0-64.73 linux-image-5.0.0-1017-gke 5.0.0-1017.17~18.04.1 linux-image-5.0.0-1020-azure 5.0.0-1020.21~18.04.1 linux-image-5.0.0-29-generic 5.0.0-29.31~18.04.1 linux-image-5.0.0-29-generic-lpae 5.0.0-29.31~18.04.1 linux-image-5.0.0-29-lowlatency 5.0.0-29.31~18.04.1 linux-image-aws 4.15.0.1050.49 linux-image-azure 5.0.0.1020.30 linux-image-gcp 4.15.0.1044.70 linux-image-generic 4.15.0.64.66 linux-image-generic-hwe-18.04 5.0.0.29.86 linux-image-generic-lpae 4.15.0.64.66 linux-image-generic-lpae-hwe-18.04 5.0.0.29.86 linux-image-gke 4.15.0.1044.47 linux-image-gke-4.15 4.15.0.1044.47 linux-image-gke-5.0 5.0.0.1017.7 linux-image-kvm 4.15.0.1046.46 linux-image-lowlatency 4.15.0.64.66 linux-image-lowlatency-hwe-18.04 5.0.0.29.86 linux-image-oem 4.15.0.1056.60 linux-image-oracle 4.15.0.1025.28 linux-image-powerpc-e500mc 4.15.0.64.66 linux-image-powerpc-smp 4.15.0.64.66 linux-image-powerpc64-emb 4.15.0.64.66 linux-image-powerpc64-smp 4.15.0.64.66 linux-image-raspi2 4.15.0.1047.45 linux-image-snapdragon 4.15.0.1064.67 linux-image-snapdragon-hwe-18.04 5.0.0.29.86 linux-image-virtual 4.15.0.64.66 linux-image-virtual-hwe-18.04 5.0.0.29.86 Ubuntu 16.04 LTS: linux-image-4.15.0-1025-oracle 4.15.0-1025.28~16.04.1 linux-image-4.15.0-1044-gcp 4.15.0-1044.46 linux-image-4.15.0-1050-aws 4.15.0-1050.52~16.04.1 linux-image-4.15.0-1059-azure 4.15.0-1059.64 linux-image-4.15.0-64-generic 4.15.0-64.73~16.04.1 linux-image-4.15.0-64-generic-lpae 4.15.0-64.73~16.04.1 linux-image-4.15.0-64-lowlatency 4.15.0-64.73~16.04.1 linux-image-4.4.0-1058-kvm 4.4.0-1058.65 linux-image-4.4.0-1094-aws 4.4.0-1094.105 linux-image-4.4.0-1122-raspi2 4.4.0-1122.131 linux-image-4.4.0-1126-snapdragon 4.4.0-1126.132 linux-image-4.4.0-164-generic 4.4.0-164.192 linux-image-4.4.0-164-generic-lpae 4.4.0-164.192 linux-image-4.4.0-164-lowlatency 4.4.0-164.192 linux-image-4.4.0-164-powerpc-e500mc 4.4.0-164.192 linux-image-4.4.0-164-powerpc-smp 4.4.0-164.192 linux-image-4.4.0-164-powerpc64-emb 4.4.0-164.192 linux-image-4.4.0-164-powerpc64-smp 4.4.0-164.192 linux-image-aws 4.4.0.1094.98 linux-image-aws-hwe 4.15.0.1050.50 linux-image-azure 4.15.0.1059.62 linux-image-gcp 4.15.0.1044.58 linux-image-generic 4.4.0.164.172 linux-image-generic-hwe-16.04 4.15.0.64.84 linux-image-generic-lpae 4.4.0.164.172 linux-image-generic-lpae-hwe-16.04 4.15.0.64.84 linux-image-gke 4.15.0.1044.58 linux-image-kvm 4.4.0.1058.58 linux-image-lowlatency 4.4.0.164.172 linux-image-lowlatency-hwe-16.04 4.15.0.64.84 linux-image-oem 4.15.0.64.84 linux-image-oracle 4.15.0.1025.18 linux-image-powerpc-e500mc 4.4.0.164.172 linux-image-powerpc-smp 4.4.0.164.172 linux-image-powerpc64-emb 4.4.0.164.172 linux-image-powerpc64-smp 4.4.0.164.172 linux-image-raspi2 4.4.0.1122.122 linux-image-snapdragon 4.4.0.1126.118 linux-image-virtual 4.4.0.164.172 linux-image-virtual-hwe-16.04 4.15.0.64.84 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/4135-1 CVE-2019-14835, CVE-2019-15030, CVE-2019-15031 Package Information: https://launchpad.net/ubuntu/+source/linux/5.0.0-29.31 https://launchpad.net/ubuntu/+source/linux-aws/5.0.0-1016.18 https://launchpad.net/ubuntu/+source/linux-azure/5.0.0-1020.21 https://launchpad.net/ubuntu/+source/linux-gcp/5.0.0-1017.17 https://launchpad.net/ubuntu/+source/linux-kvm/5.0.0-1017.18 https://launchpad.net/ubuntu/+source/linux-raspi2/5.0.0-1017.17 https://launchpad.net/ubuntu/+source/linux-snapdragon/5.0.0-1021.22 https://launchpad.net/ubuntu/+source/linux/4.15.0-64.73 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1050.52 https://launchpad.net/ubuntu/+source/linux-azure/5.0.0-1020.21~18.04.1 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1044.70 https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1044.46 https://launchpad.net/ubuntu/+source/linux-gke-5.0/5.0.0-1017.17~18.04.1 https://launchpad.net/ubuntu/+source/linux-hwe/5.0.0-29.31~18.04.1 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1046.46 https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1056.65 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1025.28 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1047.51 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1064.71 https://launchpad.net/ubuntu/+source/linux/4.4.0-164.192 https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1094.105 https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1050.52~16.04.1 https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1059.64 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1044.46 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-64.73~16.04.1 https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1058.65 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1025.28~16.04.1 https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1122.131 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1126.132