========================================================================= Ubuntu Security Notice USN-4627-1 November 11, 2020 linux, linux-gcp, linux-gcp-4.15, linux-gcp-5.4, linux-gke-4.15, linux-gke-5.3, linux-hwe, linux-hwe-5.4, linux-oem, linux-oem-osp1, linux-oracle, linux-oracle-5.4 vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 ESM - Ubuntu 12.04 ESM Summary: The system could be made to expose sensitive information. Software Description: - linux: Linux kernel - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-oracle: Linux kernel for Oracle Cloud systems - linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke-4.15: Linux kernel for Google Container Engine (GKE) systems - linux-gke-5.3: Linux kernel for Google Container Engine (GKE) systems - linux-hwe: Linux hardware enablement (HWE) kernel - linux-hwe-5.4: Linux hardware enablement (HWE) kernel - linux-oem: Linux kernel for OEM systems - linux-oem-osp1: Linux kernel for OEM systems - linux-oracle-5.4: Linux kernel for Oracle Cloud systems - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty - linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM Details: Moritz Lipp, Michael Schwarz, Andreas Kogler, David Oswald, Catherine Easdon, Claudio Canella, and Daniel Gruss discovered that the Intel Running Average Power Limit (RAPL) driver in the Linux kernel did not properly restrict access to power data. A local attacker could possibly use this to expose sensitive information. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1029-gcp 5.4.0-1029.31 linux-image-5.4.0-1029-oracle 5.4.0-1029.31 linux-image-5.4.0-53-generic 5.4.0-53.59 linux-image-5.4.0-53-generic-lpae 5.4.0-53.59 linux-image-5.4.0-53-lowlatency 5.4.0-53.59 linux-image-gcp 5.4.0.1029.37 linux-image-generic 5.4.0.53.56 linux-image-generic-hwe-20.04 5.4.0.53.56 linux-image-generic-lpae 5.4.0.53.56 linux-image-generic-lpae-hwe-20.04 5.4.0.53.56 linux-image-gke 5.4.0.1029.37 linux-image-lowlatency 5.4.0.53.56 linux-image-lowlatency-hwe-20.04 5.4.0.53.56 linux-image-oem 5.4.0.53.56 linux-image-oem-osp1 5.4.0.53.56 linux-image-oracle 5.4.0.1029.26 linux-image-virtual 5.4.0.53.56 linux-image-virtual-hwe-20.04 5.4.0.53.56 Ubuntu 18.04 LTS: linux-image-4.15.0-1058-oracle 4.15.0-1058.64 linux-image-4.15.0-1073-gke 4.15.0-1073.78 linux-image-4.15.0-1087-gcp 4.15.0-1087.100 linux-image-4.15.0-1101-oem 4.15.0-1101.112 linux-image-4.15.0-123-generic 4.15.0-123.126 linux-image-4.15.0-123-generic-lpae 4.15.0-123.126 linux-image-4.15.0-123-lowlatency 4.15.0-123.126 linux-image-5.0.0-1071-oem-osp1 5.0.0-1071.77 linux-image-5.3.0-1039-gke 5.3.0-1039.42 linux-image-5.3.0-69-generic 5.3.0-69.65 linux-image-5.3.0-69-lowlatency 5.3.0-69.65 linux-image-5.4.0-1029-gcp 5.4.0-1029.31~18.04.1 linux-image-5.4.0-1029-oracle 5.4.0-1029.31~18.04.1 linux-image-5.4.0-53-generic 5.4.0-53.59~18.04.1 linux-image-5.4.0-53-generic-lpae 5.4.0-53.59~18.04.1 linux-image-5.4.0-53-lowlatency 5.4.0-53.59~18.04.1 linux-image-gcp 5.4.0.1029.17 linux-image-gcp-edge 5.4.0.1029.17 linux-image-gcp-lts-18.04 4.15.0.1087.105 linux-image-generic 4.15.0.123.110 linux-image-generic-hwe-18.04 5.4.0.53.59~18.04.47 linux-image-generic-lpae 4.15.0.123.110 linux-image-generic-lpae-hwe-18.04 5.4.0.53.59~18.04.47 linux-image-gke 4.15.0.1073.77 linux-image-gke-4.15 4.15.0.1073.77 linux-image-gke-5.3 5.3.0.1039.22 linux-image-gkeop-5.3 5.3.0.69.126 linux-image-lowlatency 4.15.0.123.110 linux-image-lowlatency-hwe-18.04 5.4.0.53.59~18.04.47 linux-image-oem 4.15.0.1101.105 linux-image-oem-osp1 5.0.0.1071.69 linux-image-oracle 5.4.0.1029.13 linux-image-oracle-edge 5.4.0.1029.13 linux-image-oracle-lts-18.04 4.15.0.1058.68 linux-image-powerpc-e500mc 4.15.0.123.110 linux-image-powerpc-smp 4.15.0.123.110 linux-image-powerpc64-emb 4.15.0.123.110 linux-image-powerpc64-smp 4.15.0.123.110 linux-image-snapdragon-hwe-18.04 5.4.0.53.59~18.04.47 linux-image-virtual 4.15.0.123.110 linux-image-virtual-hwe-18.04 5.4.0.53.59~18.04.47 Ubuntu 16.04 LTS: linux-image-4.15.0-1058-oracle 4.15.0-1058.64~16.04.1 linux-image-4.15.0-1087-gcp 4.15.0-1087.100~16.04.1 linux-image-4.15.0-123-generic 4.15.0-123.126~16.04.1 linux-image-4.15.0-123-generic-lpae 4.15.0-123.126~16.04.1 linux-image-4.15.0-123-lowlatency 4.15.0-123.126~16.04.1 linux-image-4.4.0-194-generic 4.4.0-194.226 linux-image-4.4.0-194-generic-lpae 4.4.0-194.226 linux-image-4.4.0-194-lowlatency 4.4.0-194.226 linux-image-4.4.0-194-powerpc-e500mc 4.4.0-194.226 linux-image-4.4.0-194-powerpc-smp 4.4.0-194.226 linux-image-4.4.0-194-powerpc64-emb 4.4.0-194.226 linux-image-4.4.0-194-powerpc64-smp 4.4.0-194.226 linux-image-gcp 4.15.0.1087.88 linux-image-generic 4.4.0.194.200 linux-image-generic-hwe-16.04 4.15.0.123.123 linux-image-generic-lpae 4.4.0.194.200 linux-image-generic-lpae-hwe-16.04 4.15.0.123.123 linux-image-gke 4.15.0.1087.88 linux-image-lowlatency 4.4.0.194.200 linux-image-lowlatency-hwe-16.04 4.15.0.123.123 linux-image-oem 4.15.0.123.123 linux-image-oracle 4.15.0.1058.47 linux-image-powerpc-e500mc 4.4.0.194.200 linux-image-powerpc-smp 4.4.0.194.200 linux-image-powerpc64-emb 4.4.0.194.200 linux-image-powerpc64-smp 4.4.0.194.200 linux-image-virtual 4.4.0.194.200 linux-image-virtual-hwe-16.04 4.15.0.123.123 Ubuntu 14.04 ESM: linux-image-3.13.0-183-generic 3.13.0-183.234 linux-image-3.13.0-183-generic-lpae 3.13.0-183.234 linux-image-3.13.0-183-lowlatency 3.13.0-183.234 linux-image-3.13.0-183-powerpc-e500 3.13.0-183.234 linux-image-3.13.0-183-powerpc-e500mc 3.13.0-183.234 linux-image-3.13.0-183-powerpc-smp 3.13.0-183.234 linux-image-3.13.0-183-powerpc64-emb 3.13.0-183.234 linux-image-3.13.0-183-powerpc64-smp 3.13.0-183.234 linux-image-4.4.0-194-generic 4.4.0-194.226~14.04.1 linux-image-4.4.0-194-generic-lpae 4.4.0-194.226~14.04.1 linux-image-4.4.0-194-lowlatency 4.4.0-194.226~14.04.1 linux-image-4.4.0-194-powerpc-e500mc 4.4.0-194.226~14.04.1 linux-image-4.4.0-194-powerpc-smp 4.4.0-194.226~14.04.1 linux-image-4.4.0-194-powerpc64-emb 4.4.0-194.226~14.04.1 linux-image-4.4.0-194-powerpc64-smp 4.4.0-194.226~14.04.1 linux-image-generic 3.13.0.183.192 linux-image-generic-lpae 3.13.0.183.192 linux-image-generic-lpae-lts-xenial 4.4.0.194.170 linux-image-generic-lts-xenial 4.4.0.194.170 linux-image-generic-pae 3.13.0.183.192 linux-image-highbank 3.13.0.183.192 linux-image-lowlatency 3.13.0.183.192 linux-image-lowlatency-lts-xenial 4.4.0.194.170 linux-image-lowlatency-pae 3.13.0.183.192 linux-image-omap 3.13.0.183.192 linux-image-powerpc-e500 3.13.0.183.192 linux-image-powerpc-e500mc 3.13.0.183.192 linux-image-powerpc-e500mc-lts-xenial 4.4.0.194.170 linux-image-powerpc-smp 3.13.0.183.192 linux-image-powerpc-smp-lts-xenial 4.4.0.194.170 linux-image-powerpc64-emb 3.13.0.183.192 linux-image-powerpc64-emb-lts-xenial 4.4.0.194.170 linux-image-powerpc64-smp 3.13.0.183.192 linux-image-powerpc64-smp-lts-xenial 4.4.0.194.170 linux-image-server 3.13.0.183.192 linux-image-virtual 3.13.0.183.192 linux-image-virtual-lts-xenial 4.4.0.194.170 Ubuntu 12.04 ESM: linux-image-3.13.0-183-generic 3.13.0-183.234~12.04.1 linux-image-3.13.0-183-generic-lpae 3.13.0-183.234~12.04.1 linux-image-3.13.0-183-lowlatency 3.13.0-183.234~12.04.1 linux-image-generic-lpae-lts-trusty 3.13.0.183.169 linux-image-generic-lts-trusty 3.13.0.183.169 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/4627-1 CVE-2020-8694 Package Information: https://launchpad.net/ubuntu/+source/linux/5.4.0-53.59 https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1029.31 https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1029.31 https://launchpad.net/ubuntu/+source/linux/4.15.0-123.126 https://launchpad.net/ubuntu/+source/linux-gcp-4.15/4.15.0-1087.100 https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1029.31~18.04.1 https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1073.78 https://launchpad.net/ubuntu/+source/linux-gke-5.3/5.3.0-1039.42 https://launchpad.net/ubuntu/+source/linux-hwe/5.3.0-69.65 https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-53.59~18.04.1 https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1101.112 https://launchpad.net/ubuntu/+source/linux-oem-osp1/5.0.0-1071.77 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1058.64 https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1029.31~18.04.1 https://launchpad.net/ubuntu/+source/linux/4.4.0-194.226 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1087.100~16.04.1 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-123.126~16.04.1 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1058.64~16.04.1