Ubuntu 22.04 LTS: USN-5485-1 Critical Kernel Information Exposure

ubuntu

June 16, 2022

Several security issues were addressed in the Linux kernel.

Summary

Several security issues were addressed in the Linux kernel.

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-gke: Linux kernel for Google Container Engine (GKE) systems

- linux-ibm: Linux kernel for IBM cloud systems

- linux-intel-iotg: Linux kernel for Intel IoT platforms

- linux-kvm: Linux kernel for cloud environments

- linux-lowlatency: Linux low latency kernel

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-aws-5.13: Linux kernel for Amazon Web Services (AWS) systems

- linux-azure-5.13: Linux kernel for Microsoft Azure cloud systems

- linux-azure-fde: Linux kernel for Microsoft Azure cloud systems

- linux-gcp-5.13: Linux kernel for Google Cloud Platform (GCP) systems

- linux-gkeop: Linux kernel for Google Container Engine (GKE) systems

- linux-hwe-5.13: Linux hardware en...

Read the Full Advisory

Topics Covered

security advisory critical Ubuntu kernel local attack information exposure cloud services

Update Instructions

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

Ubuntu 22.04 LTS:
  linux-image-5.15.0-1009-ibm     5.15.0-1009.11
  linux-image-5.15.0-1010-gcp     5.15.0-1010.15
  linux-image-5.15.0-1010-gke     5.15.0-1010.13
  linux-image-5.15.0-1010-intel-iotg  5.15.0-1010.14
  linux-image-5.15.0-1011-oracle  5.15.0-1011.15
  linux-image-5.15.0-1012-azure   5.15.0-1012.15
  linux-image-5.15.0-1012-kvm     5.15.0-1012.14
  linux-image-5.15.0-1013-aws     5.15.0-1013.17
  linux-image-5.15.0-39-generic   5.15.0-39.42
  linux-image-5.15.0-39-generic-64k  5.15.0-39.42
  linux-image-5.15.0-39-generic-lpae  5.15.0-39.42
  linux-image-5.15.0-39-lowlatency  5.15.0-39.42
  linux-image-5.15.0-39-lowlatency-64k  5.15.0-39.42
  linux-image-aws                 5.15.0.1013.13
  linux-image-azure               5.15.0.1012.11
  linux-image-gcp                 5.15.0.1010.9
  linux-image-generic             5.15.0.39.40
  linux-image-generic-hwe-22.04   5.15.0.39.40
  linux-image-generic-lpae        5.15.0.39.40
  linux-image-generic-lpae-hwe-22.04  5.15.0.39.40
  linux-image-gke                 5.15.0.1010.13
  linux-image-gke-5.15            5.15.0.1010.13
  linux-image-ibm                 5.15.0.1009.8
  linux-image-intel-iotg          5.15.0.1010.10
  linux-image-kvm                 5.15.0.1012.10
  linux-image-lowlatency          5.15.0.39.38
  linux-image-lowlatency-hwe-22.04  5.15.0.39.38
  linux-image-oem-20.04           5.15.0.39.40
  linux-image-oracle              5.15.0.1011.9
  linux-image-virtual             5.15.0.39.40
  linux-image-virtual-hwe-22.04   5.15.0.39.40

Ubuntu 21.10:
  linux-image-5.13.0-1030-kvm     5.13.0-1030.33
  linux-image-5.13.0-1031-aws     5.13.0-1031.35
  linux-image-5.13.0-1031-azure   5.13.0-1031.37
  linux-image-5.13.0-1033-gcp     5.13.0-1033.40
  linux-image-5.13.0-1036-oracle  5.13.0-1036.43
  linux-image-5.13.0-51-generic   5.13.0-51.58
  linux-image-5.13.0-51-generic-lpae  5.13.0-51.58
  linux-image-5.13.0-51-lowlatency  5.13.0-51.58
  linux-image-aws                 5.13.0.1031.29
  linux-image-azure               5.13.0.1031.28
  linux-image-gcp                 5.13.0.1033.28
  linux-image-generic             5.13.0.51.57
  linux-image-generic-lpae        5.13.0.51.57
  linux-image-gke                 5.13.0.1033.28
  linux-image-kvm                 5.13.0.1030.27
  linux-image-lowlatency          5.13.0.51.57
  linux-image-oem-20.04           5.13.0.51.57
  linux-image-oracle              5.13.0.1036.33
  linux-image-virtual             5.13.0.51.57

Ubuntu 20.04 LTS:
  linux-image-5.13.0-1017-intel   5.13.0-1017.19
  linux-image-5.13.0-1031-aws     5.13.0-1031.35~20.04.1
  linux-image-5.13.0-1031-azure   5.13.0-1031.37~20.04.1
  linux-image-5.13.0-1033-gcp     5.13.0-1033.40~20.04.1
  linux-image-5.13.0-1036-oracle  5.13.0-1036.43~20.04.1
  linux-image-5.13.0-51-generic   5.13.0-51.58~20.04.1
  linux-image-5.13.0-51-generic-64k  5.13.0-51.58~20.04.1
  linux-image-5.13.0-51-generic-lpae  5.13.0-51.58~20.04.1
  linux-image-5.13.0-51-lowlatency  5.13.0-51.58~20.04.1
  linux-image-5.4.0-1028-ibm      5.4.0-1028.32
  linux-image-5.4.0-1048-gkeop    5.4.0-1048.51
  linux-image-5.4.0-1070-kvm      5.4.0-1070.75
  linux-image-5.4.0-1076-gke      5.4.0-1076.82
  linux-image-5.4.0-1078-oracle   5.4.0-1078.86
  linux-image-5.4.0-1080-aws      5.4.0-1080.87
  linux-image-5.4.0-1080-gcp      5.4.0-1080.87
  linux-image-5.4.0-1085-azure    5.4.0-1085.90
  linux-image-5.4.0-1085-azure-fde  5.4.0-1085.90+cvm1.1
  linux-image-5.4.0-120-generic   5.4.0-120.136
  linux-image-5.4.0-120-generic-lpae  5.4.0-120.136
  linux-image-5.4.0-120-lowlatency  5.4.0-120.136
  linux-image-aws                 5.13.0.1031.35~20.04.25
  linux-image-aws-lts-20.04       5.4.0.1080.80
  linux-image-azure               5.13.0.1031.37~20.04.20
  linux-image-azure-fde           5.4.0.1085.90+cvm1.25
  linux-image-azure-lts-20.04     5.4.0.1085.82
  linux-image-gcp                 5.13.0.1033.40~20.04.1
  linux-image-gcp-lts-20.04       5.4.0.1080.86
  linux-image-generic             5.4.0.120.121
  linux-image-generic-hwe-20.04   5.13.0.51.58~20.04.31
  linux-image-generic-lpae        5.4.0.120.121
  linux-image-generic-lpae-hwe-20.04  5.13.0.51.58~20.04.31
  linux-image-gke                 5.4.0.1076.84
  linux-image-gke-5.4             5.4.0.1076.84
  linux-image-gkeop               5.4.0.1048.49
  linux-image-gkeop-5.4           5.4.0.1048.49
  linux-image-ibm                 5.4.0.1028.25
  linux-image-ibm-lts-20.04       5.4.0.1028.25
  linux-image-intel               5.13.0.1017.15
  linux-image-kvm                 5.4.0.1070.67
  linux-image-lowlatency          5.4.0.120.121
  linux-image-lowlatency-hwe-20.04  5.13.0.51.58~20.04.31
  linux-image-oem                 5.4.0.120.121
  linux-image-oem-osp1            5.4.0.120.121
  linux-image-oracle              5.13.0.1036.43~20.04.1
  linux-image-oracle-lts-20.04    5.4.0.1078.76
  linux-image-virtual             5.4.0.120.121
  linux-image-virtual-hwe-20.04   5.13.0.51.58~20.04.31

Ubuntu 18.04 LTS:
  linux-image-4.15.0-1048-dell300x  4.15.0-1048.53
  linux-image-4.15.0-1101-oracle  4.15.0-1101.112
  linux-image-4.15.0-1122-kvm     4.15.0-1122.127
  linux-image-4.15.0-1130-gcp     4.15.0-1130.146
  linux-image-4.15.0-1136-aws     4.15.0-1136.147
  linux-image-4.15.0-1145-azure   4.15.0-1145.160
  linux-image-4.15.0-187-generic  4.15.0-187.198
  linux-image-4.15.0-187-generic-lpae  4.15.0-187.198
  linux-image-4.15.0-187-lowlatency  4.15.0-187.198
  linux-image-5.4.0-1028-ibm      5.4.0-1028.32~18.04.1
  linux-image-5.4.0-1048-gkeop    5.4.0-1048.51~18.04.1
  linux-image-5.4.0-1076-gke      5.4.0-1076.82~18.04.1
  linux-image-5.4.0-1078-oracle   5.4.0-1078.86~18.04.1
  linux-image-5.4.0-1080-aws      5.4.0-1080.87~18.04.1
  linux-image-5.4.0-1080-gcp      5.4.0-1080.87~18.04.1
  linux-image-5.4.0-1085-azure    5.4.0-1085.90~18.04.1
  linux-image-5.4.0-120-generic   5.4.0-120.136~18.04.1
  linux-image-5.4.0-120-generic-lpae  5.4.0-120.136~18.04.1
  linux-image-5.4.0-120-lowlatency  5.4.0-120.136~18.04.1
  linux-image-aws                 5.4.0.1080.60
  linux-image-aws-lts-18.04       4.15.0.1136.136
  linux-image-azure               5.4.0.1085.62
  linux-image-azure-lts-18.04     4.15.0.1145.115
  linux-image-dell300x            4.15.0.1048.48
  linux-image-gcp                 5.4.0.1080.61
  linux-image-gcp-lts-18.04       4.15.0.1130.146
  linux-image-generic             4.15.0.187.173
  linux-image-generic-hwe-18.04   5.4.0.120.136~18.04.100
  linux-image-generic-lpae        4.15.0.187.173
  linux-image-generic-lpae-hwe-18.04  5.4.0.120.136~18.04.100
  linux-image-gke-5.4             5.4.0.1076.82~18.04.38
  linux-image-gkeop-5.4           5.4.0.1048.51~18.04.45
  linux-image-ibm                 5.4.0.1028.42
  linux-image-kvm                 4.15.0.1122.115
  linux-image-lowlatency          4.15.0.187.173
  linux-image-lowlatency-hwe-18.04  5.4.0.120.136~18.04.100
  linux-image-oem                 5.4.0.120.136~18.04.100
  linux-image-oem-osp1            5.4.0.120.136~18.04.100
  linux-image-oracle              5.4.0.1078.86~18.04.55
  linux-image-oracle-lts-18.04    4.15.0.1101.108
  linux-image-snapdragon-hwe-18.04  5.4.0.120.136~18.04.100
  linux-image-virtual             4.15.0.187.173
  linux-image-virtual-hwe-18.04   5.4.0.120.136~18.04.100

Ubuntu 16.04 ESM:
  linux-image-4.15.0-1101-oracle  4.15.0-1101.112~16.04.1
  linux-image-4.15.0-1130-gcp     4.15.0-1130.146~16.04.1
  linux-image-4.15.0-1136-aws-hwe  4.15.0-1136.147~16.04.1
  linux-image-4.15.0-1145-azure   4.15.0-1145.160~16.04.1
  linux-image-4.15.0-187-generic  4.15.0-187.198~16.04.1
  linux-image-4.15.0-187-lowlatency  4.15.0-187.198~16.04.1
  linux-image-aws-hwe             4.15.0.1136.123
  linux-image-azure               4.15.0.1145.132
  linux-image-gcp                 4.15.0.1130.127
  linux-image-generic-hwe-16.04   4.15.0.187.174
  linux-image-gke                 4.15.0.1130.127
  linux-image-lowlatency-hwe-16.04  4.15.0.187.174
  linux-image-oem                 4.15.0.187.174
  linux-image-oracle              4.15.0.1101.86
  linux-image-virtual-hwe-16.04   4.15.0.187.174

Ubuntu 14.04 ESM:
  linux-image-4.15.0-1145-azure   4.15.0-1145.160~14.04.1
  linux-image-azure               4.15.0.1145.114

Please note that fully mitigating processor vulnerabilities requires
corresponding processor microcode/firmware updates.

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.