USN-4210-1: Linux kernel vulnerabilities

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

Source: USN-4210-1: Linux kernel vulnerabilities

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