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Ubuntu Security Notice USN-5485-1

Ubuntu Security Notice USN-5485-1
Posted Jun 20, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5485-1 - It was discovered that some Intel processors did not completely perform cleanup actions on multi-core shared buffers. A local attacker could possibly use this to expose sensitive information. It was discovered that some Intel processors did not completely perform cleanup actions on microarchitectural fill buffers. A local attacker could possibly use this to expose sensitive information. It was discovered that some Intel processors did not properly perform cleanup during specific special register write operations. A local attacker could possibly use this to expose sensitive information.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2022-21123, CVE-2022-21125, CVE-2022-21166
SHA-256 | 712ea0fa8cca54c56dcdee1163b6c9f9af4877ee2b821344703659e1956a2b24

Ubuntu Security Notice USN-5485-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5485-1
June 17, 2022

linux, linux-aws, linux-aws-hwe, linux-aws-5.13, linux-aws-5.4,
linux-azure, linux-azure-4.15, linux-azure-5.13, linux-azure-5.4,
linux-azure-fde, linux-dell300x, linux-gcp, linux-gcp-4.15,
linux-gcp-5.13, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop,
linux-gkeop-5.4, linux-hwe, linux-hwe-5.13, linux-hwe-5.4, linux-ibm,
linux-ibm-5.4, linux-intel-5.13, linux-intel-iotg, linux-kvm,
linux-lowlatency, linux-oracle, linux-oracle-5.13, linux-oracle-5.4
vulnerabilities
==========================================================================

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

- Ubuntu 22.04 LTS
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

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 enablement (HWE) kernel
- linux-intel-5.13: Linux kernel for Intel IOTG
- linux-oracle-5.13: Linux kernel for Oracle Cloud 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-dell300x: Linux kernel for Dell 300x platforms
- 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-5.4: Linux kernel for Google Container Engine (GKE) systems
- linux-gkeop-5.4: Linux kernel for Google Container Engine (GKE) systems
- linux-hwe-5.4: Linux hardware enablement (HWE) kernel
- linux-ibm-5.4: Linux kernel for IBM cloud systems
- linux-oracle-5.4: Linux kernel for Oracle Cloud systems
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems
- linux-hwe: Linux hardware enablement (HWE) kernel

Details:

It was discovered that some Intel processors did not completely perform
cleanup actions on multi-core shared buffers. A local attacker could
possibly use this to expose sensitive information. (CVE-2022-21123)

It was discovered that some Intel processors did not completely perform
cleanup actions on microarchitectural fill buffers. A local attacker could
possibly use this to expose sensitive information. (CVE-2022-21125)

It was discovered that some Intel processors did not properly perform
cleanup during specific special register write operations. A local attacker
could possibly use this to expose sensitive information. (CVE-2022-21166)

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.

References:
https://ubuntu.com/security/notices/USN-5485-1
CVE-2022-21123, CVE-2022-21125, CVE-2022-21166

Package Information:
https://launchpad.net/ubuntu/+source/linux/5.15.0-39.42
https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1013.17
https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1012.15
https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1010.15
https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1010.13
https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1009.11
https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1010.14
https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1012.14
https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-39.42
https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1011.15
https://launchpad.net/ubuntu/+source/linux/5.13.0-51.58
https://launchpad.net/ubuntu/+source/linux-aws/5.13.0-1031.35
https://launchpad.net/ubuntu/+source/linux-azure/5.13.0-1031.37
https://launchpad.net/ubuntu/+source/linux-gcp/5.13.0-1033.40
https://launchpad.net/ubuntu/+source/linux-kvm/5.13.0-1030.33
https://launchpad.net/ubuntu/+source/linux-oracle/5.13.0-1036.43
https://launchpad.net/ubuntu/+source/linux/5.4.0-120.136
https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1080.87
https://launchpad.net/ubuntu/+source/linux-aws-5.13/5.13.0-1031.35~20.04.1
https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1085.90
https://launchpad.net/ubuntu/+source/linux-azure-5.13/5.13.0-1031.37~20.04.1
https://launchpad.net/ubuntu/+source/linux-azure-fde/5.4.0-1085.90+cvm1.1
https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1080.87
https://launchpad.net/ubuntu/+source/linux-gcp-5.13/5.13.0-1033.40~20.04.1
https://launchpad.net/ubuntu/+source/linux-gke/5.4.0-1076.82
https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1048.51
https://launchpad.net/ubuntu/+source/linux-hwe-5.13/5.13.0-51.58~20.04.1
https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1028.32
https://launchpad.net/ubuntu/+source/linux-intel-5.13/5.13.0-1017.19
https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1070.75
https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1078.86
https://launchpad.net/ubuntu/+source/linux-oracle-5.13/5.13.0-1036.43~20.04.1
https://launchpad.net/ubuntu/+source/linux/4.15.0-187.198
https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1136.147
https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1080.87~18.04.1
https://launchpad.net/ubuntu/+source/linux-azure-4.15/4.15.0-1145.160
https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1085.90~18.04.1
https://launchpad.net/ubuntu/+source/linux-dell300x/4.15.0-1048.53
https://launchpad.net/ubuntu/+source/linux-gcp-4.15/4.15.0-1130.146
https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1080.87~18.04.1
https://launchpad.net/ubuntu/+source/linux-gke-5.4/5.4.0-1076.82~18.04.1
https://launchpad.net/ubuntu/+source/linux-gkeop-5.4/5.4.0-1048.51~18.04.1
https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-120.136~18.04.1
https://launchpad.net/ubuntu/+source/linux-ibm-5.4/5.4.0-1028.32~18.04.1
https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1122.127
https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1101.112
https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1078.86~18.04.1

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