========================================================================= Ubuntu Security Notice USN-4115-2 September 11, 2019 linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2 regression ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: USN 4115-1 introduced a regression 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-oracle: Linux kernel for Oracle Cloud systems - linux-raspi2: Linux kernel for Raspberry Pi 2 - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe: Linux hardware enablement (HWE) kernel Details: USN 4115-1 fixed vulnerabilities in the Linux 4.15 kernel for Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. Unfortunately, as part of the update, a regression was introduced that caused a kernel crash when handling fragmented packets in some situations. This update addresses the issue. We apologize for the inconvenience. Original advisory details: Hui Peng and Mathias Payer discovered that the Option USB High Speed driver in the Linux kernel did not properly validate metadata received from the device. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-19985) Zhipeng Xie discovered that an infinite loop could triggered in the CFS Linux kernel process scheduler. A local attacker could possibly use this to cause a denial of service. (CVE-2018-20784) It was discovered that the Intel Wi-Fi device driver in the Linux kernel did not properly validate certain Tunneled Direct Link Setup (TDLS). A physically proximate attacker could use this to cause a denial of service (Wi-Fi disconnect). (CVE-2019-0136) It was discovered that the Bluetooth UART implementation in the Linux kernel did not properly check for missing tty operations. A local attacker could use this to cause a denial of service. (CVE-2019-10207) Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values generated for connectionless networking protocols. A remote attacker could use this to track particular Linux devices. (CVE-2019-10638) Amit Klein and Benny Pinkas discovered that the location of kernel addresses could be exposed by the implementation of connection-less network protocols in the Linux kernel. A remote attacker could possibly use this to assist in the exploitation of another vulnerability in the Linux kernel. (CVE-2019-10639) It was discovered that an integer overflow existed in the Linux kernel when reference counting pages, leading to potential use-after-free issues. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-11487) Jann Horn discovered that a race condition existed in the Linux kernel when performing core dumps. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2019-11599) It was discovered that a null pointer dereference vulnerability existed in the LSI Logic MegaRAID driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-11810) It was discovered that the GTCO tablet input driver in the Linux kernel did not properly bounds check the initial HID report sent by the device. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13631) Praveen Pandey discovered that the Linux kernel did not properly validate sent signals in some situations on PowerPC systems with transactional memory disabled. A local attacker could use this to cause a denial of service. (CVE-2019-13648) It was discovered that the floppy driver in the Linux kernel did not properly validate meta data, leading to a buffer overread. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-14283) It was discovered that the floppy driver in the Linux kernel did not properly validate ioctl() calls, leading to a division-by-zero. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-14284) Tuba Yavuz discovered that a race condition existed in the DesignWare USB3 DRD Controller device driver in the Linux kernel. A physically proximate attacker could use this to cause a denial of service. (CVE-2019-14763) It was discovered that an out-of-bounds read existed in the QLogic QEDI iSCSI Initiator Driver in the Linux kernel. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2019-15090) It was discovered that the Raremono AM/FM/SW radio device driver in the Linux kernel did not properly allocate memory, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2019-15211) It was discovered at a double-free error existed in the USB Rio 500 device driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service. (CVE-2019-15212) It was discovered that a race condition existed in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel, leading to a potential use-after-free. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-15214) It was discovered that a race condition existed in the CPiA2 video4linux device driver for the Linux kernel, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-15215) It was discovered that a race condition existed in the Softmac USB Prism54 device driver in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15220) It was discovered that a use-after-free vulnerability existed in the AppleTalk implementation in the Linux kernel if an error occurs during initialization. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-15292) Jason Wang discovered that an infinite loop vulnerability existed in the virtio net driver in the Linux kernel. A local attacker in a guest VM could possibly use this to cause a denial of service in the host system. (CVE-2019-3900) Daniele Antonioli, Nils Ole Tippenhauer, and Kasper B. Rasmussen discovered that the Bluetooth protocol BR/EDR specification did not properly require sufficiently strong encryption key lengths. A physically proximate attacker could use this to expose sensitive information. (CVE-2019-9506) It was discovered that a race condition existed in the USB YUREX device driver in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15216) It was discovered that the Siano USB MDTV receiver device driver in the Linux kernel made improper assumptions about the device characteristics. A physically proximate attacker could use this cause a denial of service (system crash). (CVE-2019-15218) It was discovered that the Line 6 POD USB device driver in the Linux kernel did not properly validate data size information from the device. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15221) Muyu Yu discovered that the CAN implementation in the Linux kernel in some situations did not properly restrict the field size when processing outgoing frames. A local attacker with CAP_NET_ADMIN privileges could use this to execute arbitrary code. (CVE-2019-3701) Vladis Dronov discovered that the debug interface for the Linux kernel's HID subsystem did not properly validate passed parameters in some situations. A local privileged attacker could use this to cause a denial of service (infinite loop). (CVE-2019-3819) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1023-oracle 4.15.0-1023.26 linux-image-4.15.0-1042-gke 4.15.0-1042.44 linux-image-4.15.0-1044-kvm 4.15.0-1044.44 linux-image-4.15.0-1045-raspi2 4.15.0-1045.49 linux-image-4.15.0-1048-aws 4.15.0-1048.50 linux-image-4.15.0-62-generic 4.15.0-62.69 linux-image-4.15.0-62-generic-lpae 4.15.0-62.69 linux-image-4.15.0-62-lowlatency 4.15.0-62.69 linux-image-aws 4.15.0.1048.47 linux-image-generic 4.15.0.62.64 linux-image-generic-lpae 4.15.0.62.64 linux-image-gke 4.15.0.1042.45 linux-image-gke-4.15 4.15.0.1042.45 linux-image-kvm 4.15.0.1044.44 linux-image-lowlatency 4.15.0.62.64 linux-image-oracle 4.15.0.1023.26 linux-image-powerpc-e500mc 4.15.0.62.64 linux-image-powerpc-smp 4.15.0.62.64 linux-image-powerpc64-emb 4.15.0.62.64 linux-image-powerpc64-smp 4.15.0.62.64 linux-image-raspi2 4.15.0.1045.43 linux-image-virtual 4.15.0.62.64 Ubuntu 16.04 LTS: linux-image-4.15.0-1023-oracle 4.15.0-1023.26~16.04.1 linux-image-4.15.0-1042-gcp 4.15.0-1042.44 linux-image-4.15.0-1048-aws 4.15.0-1048.50~16.04.1 linux-image-4.15.0-1057-azure 4.15.0-1057.62 linux-image-4.15.0-62-generic 4.15.0-62.69~16.04.1 linux-image-4.15.0-62-generic-lpae 4.15.0-62.69~16.04.1 linux-image-4.15.0-62-lowlatency 4.15.0-62.69~16.04.1 linux-image-aws-hwe 4.15.0.1048.48 linux-image-azure 4.15.0.1057.60 linux-image-gcp 4.15.0.1042.56 linux-image-generic-hwe-16.04 4.15.0.62.82 linux-image-generic-lpae-hwe-16.04 4.15.0.62.82 linux-image-gke 4.15.0.1042.56 linux-image-lowlatency-hwe-16.04 4.15.0.62.82 linux-image-oem 4.15.0.62.82 linux-image-oracle 4.15.0.1023.17 linux-image-virtual-hwe-16.04 4.15.0.62.82 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/4115-2 https://usn.ubuntu.com/4115-1 https://launchpad.net/bugs/1842447 Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-62.69 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1048.50 https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1042.44 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1044.44 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1023.26 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1045.49 https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1048.50~16.04.1 https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1057.62 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1042.44 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-62.69~16.04.1 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1023.26~16.04.1