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========================================================================== Ubuntu Security Notice USN-4227-1 January 07, 2020
linux, linux-aws, linux-aws-hwe, linux-azure, 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-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:
It was discovered that a heap-based buffer overflow existed in the Marvell WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14895, CVE-2019-14901)
It was discovered that a heap-based buffer overflow existed in the Marvell Libertas WLAN Driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14896, CVE-2019-14897)
It was discovered that the Fujitsu ES network device driver for the Linux kernel did not properly check for errors in some situations, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service. (CVE-2019-16231)
It was discovered that the QLogic Fibre Channel driver in the Linux kernel did not properly check for error, leading to a NULL pointer dereference. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-16233)
Anthony Steinhauser discovered that the Linux kernel did not properly perform Spectre_RSB mitigations to all processors for PowerPC architecture systems in some situations. A local attacker could use this to expose sensitive information. (CVE-2019-18660)
It was discovered that the Mellanox Technologies Innova driver in the Linux kernel did not properly deallocate memory in certain failure conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19045)
It was discovered that Geschwister Schneider USB CAN interface driver in the Linux kernel did not properly deallocate memory in certain failure conditions. A physically proximate attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19052)
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)
It was discovered that the driver for memoryless force-feedback input devices in the Linux kernel contained a use-after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2019-19524)
It was discovered that the Microchip CAN BUS Analyzer driver in the Linux kernel contained a use-after-free vulnerability on device disconnect. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19529)
It was discovered that the PEAK-System Technik USB driver in the Linux kernel did not properly sanitize memory before sending it to the device. A physically proximate attacker could use this to expose sensitive information (kernel memory). (CVE-2019-19534)
Tristan Madani discovered that the ALSA timer implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19807)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: linux-image-4.15.0-1031-oracle 4.15.0-1031.34 linux-image-4.15.0-1050-gke 4.15.0-1050.53 linux-image-4.15.0-1052-kvm 4.15.0-1052.52 linux-image-4.15.0-1053-raspi2 4.15.0-1053.57 linux-image-4.15.0-1057-aws 4.15.0-1057.59 linux-image-4.15.0-1066-oem 4.15.0-1066.76 linux-image-4.15.0-1070-snapdragon 4.15.0-1070.77 linux-image-4.15.0-74-generic 4.15.0-74.84 linux-image-4.15.0-74-generic-lpae 4.15.0-74.84 linux-image-4.15.0-74-lowlatency 4.15.0-74.84 linux-image-aws 4.15.0.1057.58 linux-image-aws-lts-18.04 4.15.0.1057.58 linux-image-generic 4.15.0.74.76 linux-image-generic-lpae 4.15.0.74.76 linux-image-gke 4.15.0.1050.53 linux-image-gke-4.15 4.15.0.1050.53 linux-image-kvm 4.15.0.1052.52 linux-image-lowlatency 4.15.0.74.76 linux-image-oem 4.15.0.1066.70 linux-image-oracle 4.15.0.1031.36 linux-image-oracle-lts-18.04 4.15.0.1031.36 linux-image-powerpc-e500mc 4.15.0.74.76 linux-image-powerpc-smp 4.15.0.74.76 linux-image-powerpc64-emb 4.15.0.74.76 linux-image-powerpc64-smp 4.15.0.74.76 linux-image-raspi2 4.15.0.1053.51 linux-image-snapdragon 4.15.0.1070.73 linux-image-virtual 4.15.0.74.76
Ubuntu 16.04 LTS: linux-image-4.15.0-1031-oracle 4.15.0-1031.34~16.04.1 linux-image-4.15.0-1052-gcp 4.15.0-1052.56 linux-image-4.15.0-1057-aws 4.15.0-1057.59~16.04.1 linux-image-4.15.0-1066-azure 4.15.0-1066.71 linux-image-4.15.0-74-generic 4.15.0-74.83~16.04.1 linux-image-4.15.0-74-generic-lpae 4.15.0-74.83~16.04.1 linux-image-4.15.0-74-lowlatency 4.15.0-74.83~16.04.1 linux-image-aws-hwe 4.15.0.1057.57 linux-image-azure 4.15.0.1066.69 linux-image-azure-edge 4.15.0.1066.69 linux-image-gcp 4.15.0.1052.66 linux-image-generic-hwe-16.04 4.15.0.74.94 linux-image-generic-lpae-hwe-16.04 4.15.0.74.94 linux-image-gke 4.15.0.1052.66 linux-image-lowlatency-hwe-16.04 4.15.0.74.94 linux-image-oem 4.15.0.74.94 linux-image-oracle 4.15.0.1031.24 linux-image-virtual-hwe-16.04 4.15.0.74.94
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/4227-1 CVE-2019-14895, CVE-2019-14896, CVE-2019-14897, CVE-2019-14901, CVE-2019-16231, CVE-2019-16233, CVE-2019-18660, CVE-2019-19045, CVE-2019-19052, CVE-2019-19083, CVE-2019-19524, CVE-2019-19529, CVE-2019-19534, CVE-2019-19807
Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-74.84 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1057.59 https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1050.53 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1052.52 https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1066.76 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1031.34 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1053.57 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1070.77 https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1057.59~16.04.1 https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1066.71 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1052.56 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-74.83~16.04.1 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1031.34~16.04.1
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