========================================================================== Ubuntu Security Notice USN-4210-1 December 03, 2019 linux, linux-aws, linux-aws-hwe, linux-gcp, linux-gke-4.15, 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 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-gke-4.15: Linux kernel for Google Container Engine (GKE) systems - linux-kvm: Linux kernel for cloud environments - linux-oem: Linux kernel for OEM processors - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi2: Linux kernel for Raspberry Pi 2 - linux-snapdragon: Linux kernel for Snapdragon processors - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe: Linux hardware enablement (HWE) kernel Details: It was discovered that a buffer overflow existed in the 802.11 Wi-Fi configuration interface for the Linux kernel when handling beacon settings. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-16746) Nicolas Waisman discovered that the WiFi driver stack in the Linux kernel did not properly validate SSID lengths. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-17133) It was discovered that the ADIS16400 IIO IMU Driver for the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19060) It was discovered that the Intel OPA Gen1 Infiniband Driver for the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19065) It was discovered that the Cascoda CA8210 SPI 802.15.4 wireless controller driver for the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19075) Nicolas Waisman discovered that the Chelsio T4/T5 RDMA Driver for the Linux kernel performed DMA from a kernel stack. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-17075) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1030-oracle 4.15.0-1030.33 linux-image-4.15.0-1049-gke 4.15.0-1049.52 linux-image-4.15.0-1051-kvm 4.15.0-1051.51 linux-image-4.15.0-1052-raspi2 4.15.0-1052.56 linux-image-4.15.0-1056-aws 4.15.0-1056.58 linux-image-4.15.0-1065-oem 4.15.0-1065.75 linux-image-4.15.0-1069-snapdragon 4.15.0-1069.76 linux-image-4.15.0-72-generic 4.15.0-72.81 linux-image-4.15.0-72-generic-lpae 4.15.0-72.81 linux-image-4.15.0-72-lowlatency 4.15.0-72.81 linux-image-aws 4.15.0.1056.57 linux-image-aws-lts-18.04 4.15.0.1056.57 linux-image-generic 4.15.0.72.74 linux-image-generic-lpae 4.15.0.72.74 linux-image-gke 4.15.0.1049.52 linux-image-gke-4.15 4.15.0.1049.52 linux-image-kvm 4.15.0.1051.51 linux-image-lowlatency 4.15.0.72.74 linux-image-oem 4.15.0.1065.69 linux-image-oracle 4.15.0.1030.35 linux-image-oracle-lts-18.04 4.15.0.1030.35 linux-image-powerpc-e500mc 4.15.0.72.74 linux-image-powerpc-smp 4.15.0.72.74 linux-image-powerpc64-emb 4.15.0.72.74 linux-image-powerpc64-smp 4.15.0.72.74 linux-image-raspi2 4.15.0.1052.50 linux-image-snapdragon 4.15.0.1069.72 linux-image-virtual 4.15.0.72.74 Ubuntu 16.04 LTS: linux-image-4.15.0-1030-oracle 4.15.0-1030.33~16.04.1 linux-image-4.15.0-1050-gcp 4.15.0-1050.53 linux-image-4.15.0-1056-aws 4.15.0-1056.58~16.04.1 linux-image-4.15.0-72-generic 4.15.0-72.81~16.04.1 linux-image-4.15.0-72-generic-lpae 4.15.0-72.81~16.04.1 linux-image-4.15.0-72-lowlatency 4.15.0-72.81~16.04.1 linux-image-aws-hwe 4.15.0.1056.56 linux-image-gcp 4.15.0.1050.64 linux-image-generic-hwe-16.04 4.15.0.72.92 linux-image-generic-lpae-hwe-16.04 4.15.0.72.92 linux-image-gke 4.15.0.1050.64 linux-image-lowlatency-hwe-16.04 4.15.0.72.92 linux-image-oem 4.15.0.72.92 linux-image-oracle 4.15.0.1030.23 linux-image-virtual-hwe-16.04 4.15.0.72.92 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/4210-1 CVE-2019-16746, CVE-2019-17075, CVE-2019-17133, CVE-2019-19060, CVE-2019-19065, CVE-2019-19075 Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-72.81 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1056.58 https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1049.52 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1051.51 https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1065.75 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1030.33 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1052.56 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1069.76 https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1056.58~16.04.1 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1050.53 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-72.81~16.04.1 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1030.33~16.04.1