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             AUSCERT External Security Bulletin Redistribution

                 USN-4210-1: Linux kernel vulnerabilities
                              3 December 2019


        AusCERT Security Bulletin Summary

Product:           kernel
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Root Compromise   -- Existing Account
                   Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-19075 CVE-2019-19065 CVE-2019-19060
                   CVE-2019-17133 CVE-2019-17075 CVE-2019-16746

Reference:         ESB-2019.4537

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

USN-4210-1: Linux kernel vulnerabilities
3 December 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:

  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS


Several security issues were fixed in the Linux kernel.

Software Description

  o linux - Linux kernel
  o linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  o linux-gke-4.15 - Linux kernel for Google Container Engine (GKE) systems
  o linux-kvm - Linux kernel for cloud environments
  o linux-oem - Linux kernel for OEM processors
  o linux-oracle - Linux kernel for Oracle Cloud systems
  o linux-raspi2 - Linux kernel for Raspberry Pi 2
  o linux-snapdragon - Linux kernel for Snapdragon processors
  o linux-aws-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems
  o linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  o linux-hwe - Linux hardware enablement (HWE) kernel


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).

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).

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

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 -
    linux-image-aws-lts-18.04 -
    linux-image-generic -
    linux-image-generic-lpae -
    linux-image-gke -
    linux-image-gke-4.15 -
    linux-image-kvm -
    linux-image-lowlatency -
    linux-image-oem -
    linux-image-oracle -
    linux-image-oracle-lts-18.04 -
    linux-image-powerpc-e500mc -
    linux-image-powerpc-smp -
    linux-image-powerpc64-emb -
    linux-image-powerpc64-smp -
    linux-image-raspi2 -
    linux-image-snapdragon -
    linux-image-virtual -
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 -
    linux-image-gcp -
    linux-image-generic-hwe-16.04 -
    linux-image-generic-lpae-hwe-16.04 -
    linux-image-gke -
    linux-image-lowlatency-hwe-16.04 -
    linux-image-oem -
    linux-image-oracle -
    linux-image-virtual-hwe-16.04 -

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.


  o CVE-2019-16746
  o CVE-2019-17075
  o CVE-2019-17133
  o CVE-2019-19060
  o CVE-2019-19065
  o CVE-2019-19075

- --------------------------END INCLUDED TEXT--------------------

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