========================================================================== Ubuntu Security Notice USN-4208-1 December 02, 2019 linux, linux-aws, linux-gcp, linux-gcp-5.3, linux-kvm, linux-oracle vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.10 - Ubuntu 18.04 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-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-gcp-5.3: Linux kernel for Google Cloud Platform (GCP) systems Details: Jann Horn discovered that the OverlayFS and ShiftFS Drivers in the Linux kernel did not properly handle reference counting during memory mapping operations when used in conjunction with AUFS. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-15794) 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 ARM Komeda display 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-2019-18810) It was discovered that the VirtualBox guest driver implementation in 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-2019-19048) 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, CVE-2019-19061) 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 AMD Audio CoProcessor Driver for the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker with the ability to load modules could use this to cause a denial of service (memory exhaustion). (CVE-2019-19067) It was discovered in the Qualcomm FastRPC 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-2019-19069) 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) It was discovered that the AMD Display Engine Driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attack could use this to cause a denial of service (memory exhaustion). (CVE-2019-19083) 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 19.10: linux-image-5.3.0-1007-oracle 5.3.0-1007.8 linux-image-5.3.0-1008-aws 5.3.0-1008.9 linux-image-5.3.0-1008-kvm 5.3.0-1008.9 linux-image-5.3.0-1009-gcp 5.3.0-1009.10 linux-image-5.3.0-24-generic 5.3.0-24.26 linux-image-5.3.0-24-generic-lpae 5.3.0-24.26 linux-image-5.3.0-24-lowlatency 5.3.0-24.26 linux-image-5.3.0-24-snapdragon 5.3.0-24.26 linux-image-aws 5.3.0.1008.10 linux-image-gcp 5.3.0.1009.10 linux-image-generic 5.3.0.24.28 linux-image-generic-lpae 5.3.0.24.28 linux-image-gke 5.3.0.1009.10 linux-image-kvm 5.3.0.1008.10 linux-image-lowlatency 5.3.0.24.28 linux-image-oracle 5.3.0.1007.8 linux-image-snapdragon 5.3.0.24.28 linux-image-virtual 5.3.0.24.28 Ubuntu 18.04 LTS: linux-image-5.3.0-1009-gcp 5.3.0-1009.10~18.04.1 linux-image-gcp-edge 5.3.0.1009.9 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/4208-1 CVE-2019-15794, CVE-2019-17075, CVE-2019-17133, CVE-2019-18810, CVE-2019-19048, CVE-2019-19060, CVE-2019-19061, CVE-2019-19065, CVE-2019-19067, CVE-2019-19069, CVE-2019-19075, CVE-2019-19083 Package Information: https://launchpad.net/ubuntu/+source/linux/5.3.0-24.26 https://launchpad.net/ubuntu/+source/linux-aws/5.3.0-1008.9 https://launchpad.net/ubuntu/+source/linux-gcp/5.3.0-1009.10 https://launchpad.net/ubuntu/+source/linux-kvm/5.3.0-1008.9 https://launchpad.net/ubuntu/+source/linux-oracle/5.3.0-1007.8 https://launchpad.net/ubuntu/+source/linux-gcp-5.3/5.3.0-1009.10~18.04.1