==========================================================================
Ubuntu Security Notice USN-4489-1
September 08, 2020

linux, linux-aws, linux-aws-5.3, linux-aws-5.4, linux-aws-hwe,
linux-azure, linux-azure-4.15, linux-azure-5.4, linux-gcp, linux-gcp-4.15,
linux-gcp-5.4, linux-gke-4.15, linux-gke-5.0, linux-gke-5.3, linux-hwe,
linux-hwe-5.4, linux-kvm, linux-oem, linux-oem-osp1, linux-oracle,
linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-raspi2,
linux-raspi2-5.3, linux-snapdragon vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 ESM

Summary:

The system could be made to crash or run programs as an administrator.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-kvm: Linux kernel for cloud environments
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-raspi: Linux kernel for Raspberry Pi (V8) systems
- linux-aws-5.3: Linux kernel for Amazon Web Services (AWS) systems
- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems
- linux-azure-4.15: Linux kernel for Microsoft Azure Cloud systems
- linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems
- linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke-4.15: Linux kernel for Google Container Engine (GKE) systems
- linux-gke-5.0: Linux kernel for Google Container Engine (GKE) systems
- linux-gke-5.3: Linux kernel for Google Container Engine (GKE) systems
- linux-hwe: Linux hardware enablement (HWE) kernel
- linux-hwe-5.4: Linux hardware enablement (HWE) kernel
- linux-oem: Linux kernel for OEM systems
- linux-oem-osp1: Linux kernel for OEM systems
- linux-oracle-5.4: Linux kernel for Oracle Cloud systems
- linux-raspi-5.4: Linux kernel for Raspberry Pi (V8) systems
- linux-raspi2: Linux kernel for Raspberry Pi (V8) systems
- linux-raspi2-5.3: Linux kernel for Raspberry Pi (V8) systems
- linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems

Details:

Or Cohen discovered that the AF_PACKET implementation in the Linux
kernel did not properly perform bounds checking in some situations. A
local attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 20.04 LTS:
  linux-image-5.4.0-1018-raspi    5.4.0-1018.20
  linux-image-5.4.0-1024-aws      5.4.0-1024.24
  linux-image-5.4.0-1024-gcp      5.4.0-1024.24
  linux-image-5.4.0-1024-oracle   5.4.0-1024.24
  linux-image-5.4.0-1025-azure    5.4.0-1025.25
  linux-image-5.4.0-47-generic    5.4.0-47.51
  linux-image-5.4.0-47-generic-lpae  5.4.0-47.51
  linux-image-5.4.0-47-lowlatency  5.4.0-47.51
  linux-image-aws                 5.4.0.1024.25
  linux-image-azure               5.4.0.1025.24
  linux-image-gcp                 5.4.0.1024.21
  linux-image-generic             5.4.0.47.50
  linux-image-generic-lpae        5.4.0.47.50
  linux-image-gke                 5.4.0.1024.21
  linux-image-kvm                 5.4.0.1023.21
  linux-image-lowlatency          5.4.0.47.50
  linux-image-oem                 5.4.0.47.50
  linux-image-oem-osp1            5.4.0.47.50
  linux-image-oracle              5.4.0.1024.21
  linux-image-raspi               5.4.0.1018.53
  linux-image-raspi2              5.4.0.1018.53
  linux-image-virtual             5.4.0.47.50

Ubuntu 18.04 LTS:
  linux-image-4.15.0-1053-oracle  4.15.0-1053.57
  linux-image-4.15.0-1069-gke     4.15.0-1069.72
  linux-image-4.15.0-1070-raspi2  4.15.0-1070.74
  linux-image-4.15.0-1074-kvm     4.15.0-1074.75
  linux-image-4.15.0-1082-aws     4.15.0-1082.86
  linux-image-4.15.0-1083-gcp     4.15.0-1083.94
  linux-image-4.15.0-1086-snapdragon  4.15.0-1086.94
  linux-image-4.15.0-1095-azure   4.15.0-1095.105
  linux-image-4.15.0-1096-oem     4.15.0-1096.106
  linux-image-4.15.0-117-generic  4.15.0-117.118
  linux-image-4.15.0-117-generic-lpae  4.15.0-117.118
  linux-image-4.15.0-117-lowlatency  4.15.0-117.118
  linux-image-5.0.0-1047-gke      5.0.0-1047.48
  linux-image-5.0.0-1068-oem-osp1  5.0.0-1068.73
  linux-image-5.3.0-1033-raspi2   5.3.0-1033.35
  linux-image-5.3.0-1035-aws      5.3.0-1035.37
  linux-image-5.3.0-1036-gke      5.3.0-1036.38
  linux-image-5.3.0-67-generic    5.3.0-67.61
  linux-image-5.3.0-67-lowlatency  5.3.0-67.61
  linux-image-5.4.0-1018-raspi    5.4.0-1018.20~18.04.1
  linux-image-5.4.0-1024-aws      5.4.0-1024.24~18.04.1
  linux-image-5.4.0-1024-gcp      5.4.0-1024.24~18.04.1
  linux-image-5.4.0-1024-oracle   5.4.0-1024.24~18.04.1
  linux-image-5.4.0-1025-azure    5.4.0-1025.25~18.04.1
  linux-image-5.4.0-47-generic    5.4.0-47.51~18.04.1
  linux-image-5.4.0-47-generic-lpae  5.4.0-47.51~18.04.1
  linux-image-5.4.0-47-lowlatency  5.4.0-47.51~18.04.1
  linux-image-aws                 5.3.0.1035.34
  linux-image-aws-lts-18.04       4.15.0.1082.84
  linux-image-azure               5.4.0.1025.8
  linux-image-azure-lts-18.04     4.15.0.1095.68
  linux-image-gcp                 5.4.0.1024.11
  linux-image-gcp-lts-18.04       4.15.0.1083.101
  linux-image-generic             4.15.0.117.104
  linux-image-generic-hwe-18.04   5.4.0.47.51~18.04.40
  linux-image-generic-lpae        4.15.0.117.104
  linux-image-generic-lpae-hwe-18.04  5.4.0.47.51~18.04.40
  linux-image-gke                 4.15.0.1069.73
  linux-image-gke-4.15            4.15.0.1069.73
  linux-image-gke-5.0             5.0.0.1047.32
  linux-image-gke-5.3             5.3.0.1036.20
  linux-image-gke-5.4             5.4.0.1024.11
  linux-image-gkeop-5.3           5.3.0.67.124
  linux-image-gkeop-5.4           5.4.0.47.51~18.04.40
  linux-image-kvm                 4.15.0.1074.70
  linux-image-lowlatency          4.15.0.117.104
  linux-image-lowlatency-hwe-18.04  5.4.0.47.51~18.04.40
  linux-image-oem                 4.15.0.1096.100
  linux-image-oem-osp1            5.0.0.1068.66
  linux-image-oracle              5.4.0.1024.8
  linux-image-oracle-lts-18.04    4.15.0.1053.63
  linux-image-powerpc-e500mc      4.15.0.117.104
  linux-image-powerpc-smp         4.15.0.117.104
  linux-image-powerpc64-emb       4.15.0.117.104
  linux-image-powerpc64-smp       4.15.0.117.104
  linux-image-raspi-hwe-18.04     5.4.0.1018.22
  linux-image-raspi2              4.15.0.1070.67
  linux-image-raspi2-hwe-18.04    5.3.0.1033.23
  linux-image-snapdragon          4.15.0.1086.89
  linux-image-snapdragon-hwe-18.04  5.4.0.47.51~18.04.40
  linux-image-virtual             4.15.0.117.104
  linux-image-virtual-hwe-18.04   5.4.0.47.51~18.04.40

Ubuntu 16.04 LTS:
  linux-image-4.15.0-1053-oracle  4.15.0-1053.57~16.04.1
  linux-image-4.15.0-1082-aws     4.15.0-1082.86~16.04.1
  linux-image-4.15.0-1083-gcp     4.15.0-1083.94~16.04.1
  linux-image-4.15.0-1095-azure   4.15.0-1095.105~16.04.1
  linux-image-4.15.0-117-generic  4.15.0-117.118~16.04.1
  linux-image-4.15.0-117-generic-lpae  4.15.0-117.118~16.04.1
  linux-image-4.15.0-117-lowlatency  4.15.0-117.118~16.04.1
  linux-image-aws-hwe             4.15.0.1082.78
  linux-image-azure               4.15.0.1095.89
  linux-image-gcp                 4.15.0.1083.84
  linux-image-generic-hwe-16.04   4.15.0.117.118
  linux-image-generic-lpae-hwe-16.04  4.15.0.117.118
  linux-image-gke                 4.15.0.1083.84
  linux-image-lowlatency-hwe-16.04  4.15.0.117.118
  linux-image-oem                 4.15.0.117.118
  linux-image-oracle              4.15.0.1053.43
  linux-image-virtual-hwe-16.04   4.15.0.117.118

Ubuntu 14.04 ESM:
  linux-image-4.15.0-1095-azure   4.15.0-1095.105~14.04.1
  linux-image-azure               4.15.0.1095.71

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/4489-1
  CVE-2020-14386

Package Information:
  https://launchpad.net/ubuntu/+source/linux/5.4.0-47.51
  https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1024.24
  https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1025.25
  https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1024.24
  https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1023.23
  https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1024.24
  https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1018.20
  https://launchpad.net/ubuntu/+source/linux/4.15.0-117.118
  https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1082.86
  https://launchpad.net/ubuntu/+source/linux-aws-5.3/5.3.0-1035.37
  https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1024.24~18.04.1
  https://launchpad.net/ubuntu/+source/linux-azure-4.15/4.15.0-1095.105
  https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1025.25~18.04.1
  https://launchpad.net/ubuntu/+source/linux-gcp-4.15/4.15.0-1083.94
  https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1024.24~18.04.1
  https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1069.72
  https://launchpad.net/ubuntu/+source/linux-gke-5.0/5.0.0-1047.48
  https://launchpad.net/ubuntu/+source/linux-gke-5.3/5.3.0-1036.38
  https://launchpad.net/ubuntu/+source/linux-hwe/5.3.0-67.61
  https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-47.51~18.04.1
  https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1074.75
  https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1096.106
  https://launchpad.net/ubuntu/+source/linux-oem-osp1/5.0.0-1068.73
  https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1053.57
  https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1024.24~18.04.1
  https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1018.20~18.04.1
  https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1070.74
  https://launchpad.net/ubuntu/+source/linux-raspi2-5.3/5.3.0-1033.35
  https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1086.94
  https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1082.86~16.04.1
  https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1095.105~16.04.1
  https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1083.94~16.04.1
  https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-117.118~16.04.1
  https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1053.57~16.04.1