USN-3822-1: Linux kernel vulnerabilities

14 November 2018

Several security issues were fixed in the Linux kernel.

Releases

Packages

  • linux - Linux kernel

Details

Jim Mattson discovered that the KVM implementation in the Linux kernel
mismanages the #BP and #OF exceptions. A local attacker in a guest virtual
machine could use this to cause a denial of service (guest OS crash).
(CVE-2016-9588)

It was discovered that the generic SCSI driver in the Linux kernel did not
properly enforce permissions on kernel memory access. A local attacker
could use this to expose sensitive information or possibly elevate
privileges. (CVE-2017-13168)

Andrey Konovalov discovered that the CDC USB Ethernet driver did not
properly validate device descriptors. A physically proximate attacker could
use this to cause a denial of service (system crash). (CVE-2017-16649)

It was discovered that an integer overflow existed in the CD-ROM driver of
the Linux kernel. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2018-16658)

It was discovered that an integer overflow existed in the HID Bluetooth
implementation in the Linux kernel that could lead to a buffer overwrite.
An attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2018-9363)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04

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.

Related notices

  • USN-3208-2: linux-image-lowlatency-lts-xenial, linux-image-powerpc64-emb-lts-xenial, linux-image-4.4.0-64-generic, linux-lts-xenial, linux-image-4.4.0-64-powerpc64-emb, linux-image-powerpc64-smp-lts-xenial, linux-image-powerpc-smp-lts-xenial, linux-image-generic-lpae-lts-xenial, linux-image-4.4.0-64-powerpc64-smp, linux-image-4.4.0-64-lowlatency, linux-image-4.4.0-64-generic-lpae, linux-image-powerpc-e500mc-lts-xenial, linux-image-4.4.0-64-powerpc-e500mc, linux-image-generic-lts-xenial, linux-image-4.4.0-64-powerpc-smp
  • USN-3822-2: linux-image-generic-lts-trusty, linux-lts-trusty, linux-image-3.13.0-162-generic-lpae, linux-image-generic-lpae-lts-trusty, linux-image-3.13.0-162-generic
  • USN-3208-1: linux-image-snapdragon, linux-image-powerpc64-emb, linux-image-4.4.0-64-generic, linux-image-lowlatency, linux-image-powerpc64-smp, linux-image-4.4.0-64-powerpc64-emb, linux, linux-image-generic-lpae, linux-snapdragon, linux-image-generic, linux-image-4.4.0-64-powerpc64-smp, linux-image-4.4.0-64-lowlatency, linux-image-4.4.0-64-generic-lpae, linux-image-4.4.0-64-powerpc-e500mc, linux-image-powerpc-e500mc, linux-image-powerpc-smp, linux-image-4.4.0-64-powerpc-smp, linux-image-4.4.0-1048-snapdragon
  • USN-3617-1: linux-image-generic-lpae, linux, linux-image-generic, linux-image-4.13.0-38-generic-lpae, linux-image-4.13.0-38-generic, linux-image-4.13.0-38-lowlatency, linux-image-lowlatency
  • USN-3753-1: linux-image-generic-lpae, linux, linux-image-kvm, linux-image-4.4.0-1095-raspi2, linux-image-4.4.0-1032-kvm, linux-image-4.4.0-1066-aws, linux-image-4.4.0-134-powerpc-smp, linux-image-powerpc-smp, linux-aws, linux-image-powerpc64-emb, linux-snapdragon, linux-image-4.4.0-134-lowlatency, linux-raspi2, linux-image-powerpc-e500mc, linux-image-4.4.0-134-generic-lpae, linux-image-4.4.0-134-generic, linux-image-4.4.0-134-powerpc64-emb, linux-image-raspi2, linux-kvm, linux-image-generic, linux-image-powerpc64-smp, linux-image-aws, linux-image-4.4.0-1099-snapdragon, linux-image-snapdragon, linux-image-4.4.0-134-powerpc64-smp, linux-image-4.4.0-134-powerpc-e500mc, linux-image-lowlatency
  • USN-3797-2: linux-image-lowlatency-lts-xenial, linux-image-powerpc64-emb-lts-xenial, linux-image-4.4.0-138-lowlatency, linux-image-4.4.0-138-powerpc64-smp, linux-image-4.4.0-138-powerpc64-emb, linux-lts-xenial, linux-image-powerpc64-smp-lts-xenial, linux-image-powerpc-smp-lts-xenial, linux-image-generic-lpae-lts-xenial, linux-image-4.4.0-138-powerpc-smp, linux-image-4.4.0-138-generic, linux-image-4.4.0-138-powerpc-e500mc, linux-image-powerpc-e500mc-lts-xenial, linux-aws, linux-image-aws, linux-image-4.4.0-1032-aws, linux-image-4.4.0-138-generic-lpae, linux-image-generic-lts-xenial
  • USN-3820-2: linux-hwe, linux-image-azure, linux-image-4.15.0-39-lowlatency, linux-image-generic-lpae-hwe-16.04, linux-image-4.15.0-39-generic-lpae, linux-image-gcp, linux-azure, linux-image-oem, linux-image-4.15.0-1024-gcp, linux-image-generic-hwe-16.04, linux-image-gke, linux-image-4.15.0-39-generic, linux-gcp, linux-image-lowlatency-hwe-16.04, linux-image-4.15.0-1031-azure
  • USN-3617-2: linux-hwe, linux-image-generic-lpae-hwe-16.04, linux-image-4.13.0-1022-oem, linux-image-gcp, linux-image-gke, linux-image-oem, linux-oem, linux-image-4.13.0-38-generic-lpae, linux-image-4.13.0-1012-gcp, linux-image-4.13.0-38-generic, linux-image-4.13.0-38-lowlatency, linux-gcp, linux-image-lowlatency-hwe-16.04, linux-image-generic-hwe-16.04
  • USN-3617-3: linux-image-4.13.0-1016-raspi2, linux-raspi2, linux-image-raspi2
  • USN-3753-2: linux-image-lowlatency-lts-xenial, linux-image-powerpc64-emb-lts-xenial, linux-lts-xenial, linux-image-powerpc64-smp-lts-xenial, linux-image-powerpc-smp-lts-xenial, linux-image-4.4.0-134-powerpc-smp, linux-image-generic-lpae-lts-xenial, linux-image-4.4.0-1028-aws, linux-image-4.4.0-134-lowlatency, linux-image-powerpc-e500mc-lts-xenial, linux-image-4.4.0-134-powerpc64-smp, linux-image-aws, linux-image-4.4.0-134-powerpc-e500mc, linux-image-4.4.0-134-generic-lpae, linux-image-4.4.0-134-generic, linux-image-4.4.0-134-powerpc64-emb, linux-aws, linux-image-generic-lts-xenial
  • USN-3797-1: linux-image-4.4.0-138-lowlatency, linux-image-4.4.0-1099-raspi2, linux-image-generic-lpae, linux, linux-image-kvm, linux-image-4.4.0-138-generic, linux-image-powerpc-smp, linux-aws, linux-image-powerpc64-emb, linux-image-4.4.0-138-powerpc64-smp, linux-snapdragon, linux-raspi2, linux-image-4.4.0-138-powerpc-e500mc, linux-image-powerpc-e500mc, linux-image-raspi2, linux-image-4.4.0-1070-aws, linux-kvm, linux-image-generic, linux-image-powerpc64-smp, linux-image-aws, linux-image-4.4.0-1103-snapdragon, linux-image-4.4.0-138-generic-lpae, linux-image-4.4.0-1036-kvm, linux-image-snapdragon, linux-image-4.4.0-138-powerpc64-emb, linux-image-4.4.0-138-powerpc-smp, linux-image-lowlatency
  • USN-3820-1: linux-image-4.15.0-1026-oem, linux-image-generic-lpae, linux, linux-image-4.15.0-39-generic-lpae, linux-image-kvm, linux-image-gke, linux-aws, linux-image-4.15.0-39-snapdragon, linux-image-gcp, linux-raspi2, linux-image-4.15.0-39-generic, linux-image-4.15.0-1031-azure, linux-image-raspi2, linux-image-4.15.0-1027-aws, linux-kvm, linux-image-generic, linux-image-aws, linux-image-snapdragon, linux-image-azure, linux-image-4.15.0-39-lowlatency, linux-image-4.15.0-1028-raspi2, linux-azure, linux-image-oem, linux-oem, linux-image-4.15.0-1024-gcp, linux-image-4.15.0-1026-kvm, linux-gcp, linux-image-lowlatency
  • USN-3619-2: linux-image-4.4.0-1016-aws, linux-image-4.4.0-119-generic-lpae, linux-image-4.4.0-119-powerpc-smp, linux-image-lowlatency-lts-xenial, linux-image-powerpc64-emb-lts-xenial, linux-lts-xenial, linux-image-powerpc64-smp-lts-xenial, linux-image-powerpc-smp-lts-xenial, linux-image-generic-lpae-lts-xenial, linux-image-4.4.0-119-powerpc-e500mc, linux-image-powerpc-e500mc-lts-xenial, linux-image-4.4.0-119-powerpc64-emb, linux-image-4.4.0-119-lowlatency, linux-image-aws, linux-image-4.4.0-119-powerpc64-smp, linux-image-generic-lts-xenial, linux-aws, linux-image-4.4.0-119-generic
  • USN-3820-3: linux-azure, linux-image-azure, linux-image-4.15.0-1031-azure
  • USN-3209-1: linux-image-4.8.0-39-generic-lpae, linux-image-powerpc64-emb, linux-image-4.8.0-39-powerpc-e500mc, linux-image-generic-lpae, linux, linux-image-4.8.0-39-powerpc64-emb, linux-image-4.8.0-39-generic, linux-image-generic, linux-raspi2, linux-image-4.8.0-39-lowlatency, linux-image-4.8.0-1026-raspi2, linux-image-powerpc-e500mc, linux-image-4.8.0-39-powerpc-smp, linux-image-powerpc-smp, linux-image-lowlatency, linux-image-raspi2
  • USN-3619-1: linux-image-4.4.0-119-powerpc-smp, linux-image-generic-lpae, linux, linux-image-4.4.0-1020-kvm, linux-image-kvm, linux-image-4.4.0-119-powerpc64-smp, linux-image-powerpc-smp, linux-aws, linux-image-4.4.0-119-generic, linux-image-powerpc64-emb, linux-snapdragon, linux-image-4.4.0-119-powerpc-e500mc, linux-raspi2, linux-image-4.4.0-119-lowlatency, linux-image-powerpc-e500mc, linux-image-4.4.0-1054-aws, linux-image-raspi2, linux-kvm, linux-image-generic, linux-image-4.4.0-119-powerpc64-emb, linux-image-powerpc64-smp, linux-image-aws, linux-image-snapdragon, linux-image-4.4.0-119-generic-lpae, linux-image-4.4.0-1088-snapdragon, linux-image-4.4.0-1086-raspi2, linux-image-lowlatency