=========================================================================Ubuntu Security Notice USN-5691-1
October 19, 2022

linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4,
linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gke, linux-gkeop,
linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle,
linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed 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-bluefield: Linux kernel for NVIDIA BlueField platforms
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke: Linux kernel for Google Container Engine (GKE) systems
- linux-gkeop: Linux kernel for Google Container Engine (GKE) systems
- linux-ibm: Linux kernel for IBM cloud systems
- linux-kvm: Linux kernel for cloud environments
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-raspi: Linux kernel for Raspberry Pi systems
- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems
- linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems
- linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) 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-raspi-5.4: Linux kernel for Raspberry Pi systems

Details:

David Bouman and Billy Jheng Bing Jhong discovered that a race condition
existed in the io_uring subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2022-2602)

Sönke Huster discovered that an integer overflow vulnerability existed in
the WiFi driver stack in the Linux kernel, leading to a buffer overflow. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-41674)

Sönke Huster discovered that the WiFi driver stack in the Linux kernel did
not properly perform reference counting in some situations, leading to a
use-after-free vulnerability. A physically proximate attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2022-42720)

Sönke Huster discovered that the WiFi driver stack in the Linux kernel did
not properly handle BSSID/SSID lists in some situations. A physically
proximate attacker could use this to cause a denial of service (infinite
loop). (CVE-2022-42721)

Update instructions:

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

Ubuntu 20.04 LTS:
   linux-image-5.4.0-1036-ibm      5.4.0-1036.41
   linux-image-5.4.0-1049-bluefield  5.4.0-1049.55
   linux-image-5.4.0-1056-gkeop    5.4.0-1056.60
   linux-image-5.4.0-1073-raspi    5.4.0-1073.84
   linux-image-5.4.0-1078-kvm      5.4.0-1078.84
   linux-image-5.4.0-1086-gke      5.4.0-1086.93
   linux-image-5.4.0-1086-oracle   5.4.0-1086.95
   linux-image-5.4.0-1088-aws      5.4.0-1088.96
   linux-image-5.4.0-1092-gcp      5.4.0-1092.101
   linux-image-5.4.0-1094-azure    5.4.0-1094.100
   linux-image-5.4.0-131-generic   5.4.0-131.147
   linux-image-5.4.0-131-generic-lpae  5.4.0-131.147
   linux-image-5.4.0-131-lowlatency  5.4.0-131.147
   linux-image-aws-lts-20.04       5.4.0.1088.87
   linux-image-azure-lts-20.04     5.4.0.1094.90
   linux-image-bluefield           5.4.0.1049.47
   linux-image-gcp-lts-20.04       5.4.0.1092.96
   linux-image-generic             5.4.0.131.131
   linux-image-generic-lpae        5.4.0.131.131
   linux-image-gke                 5.4.0.1086.93
   linux-image-gke-5.4             5.4.0.1086.93
   linux-image-gkeop               5.4.0.1056.56
   linux-image-gkeop-5.4           5.4.0.1056.56
   linux-image-ibm                 5.4.0.1036.64
   linux-image-ibm-lts-20.04       5.4.0.1036.64
   linux-image-kvm                 5.4.0.1078.74
   linux-image-lowlatency          5.4.0.131.131
   linux-image-oem                 5.4.0.131.131
   linux-image-oem-osp1            5.4.0.131.131
   linux-image-oracle-lts-20.04    5.4.0.1086.82
   linux-image-raspi               5.4.0.1073.105
   linux-image-raspi2              5.4.0.1073.105
   linux-image-virtual             5.4.0.131.131

Ubuntu 18.04 LTS:
   linux-image-5.4.0-1036-ibm      5.4.0-1036.41~18.04.1
   linux-image-5.4.0-1073-raspi    5.4.0-1073.84~18.04.1
   linux-image-5.4.0-1086-oracle   5.4.0-1086.95~18.04.1
   linux-image-5.4.0-1088-aws      5.4.0-1088.96~18.04.1
   linux-image-5.4.0-1092-gcp      5.4.0-1092.101~18.04.1
   linux-image-5.4.0-1094-azure    5.4.0-1094.100~18.04.1
   linux-image-5.4.0-131-generic   5.4.0-131.147~18.04.1
   linux-image-5.4.0-131-generic-lpae  5.4.0-131.147~18.04.1
   linux-image-5.4.0-131-lowlatency  5.4.0-131.147~18.04.1
   linux-image-aws                 5.4.0.1088.67
   linux-image-azure               5.4.0.1094.70
   linux-image-gcp                 5.4.0.1092.70
   linux-image-generic-hwe-18.04   5.4.0.131.147~18.04.108
   linux-image-generic-lpae-hwe-18.04  5.4.0.131.147~18.04.108
   linux-image-ibm                 5.4.0.1036.49
   linux-image-lowlatency-hwe-18.04  5.4.0.131.147~18.04.108
   linux-image-oem                 5.4.0.131.147~18.04.108
   linux-image-oem-osp1            5.4.0.131.147~18.04.108
   linux-image-oracle              5.4.0.1086.95~18.04.62
   linux-image-raspi-hwe-18.04     5.4.0.1073.72
   linux-image-snapdragon-hwe-18.04  5.4.0.131.147~18.04.108
   linux-image-virtual-hwe-18.04   5.4.0.131.147~18.04.108

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-5691-1
   CVE-2022-2602, CVE-2022-41674, CVE-2022-42720, CVE-2022-42721

Package Information:
   https://launchpad.net/ubuntu/+source/linux/5.4.0-131.147
   https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1088.96
   https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1094.100
   https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1049.55
   https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1092.101
   https://launchpad.net/ubuntu/+source/linux-gke/5.4.0-1086.93
   https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1056.60
   https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1036.41
   https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1078.84
   https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1086.95
   https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1073.84
   https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1088.96~18.04.1
   https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1094.100~18.04.1
   https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1092.101~18.04.1
   https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-131.147~18.04.1
   https://launchpad.net/ubuntu/+source/linux-ibm-5.4/5.4.0-1036.41~18.04.1
   https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1086.95~18.04.1
   https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1073.84~18.04.1

Ubuntu 5691-1: Linux kernel vulnerabilities

October 19, 2022
Several security issues were fixed in the Linux kernel.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1036-ibm 5.4.0-1036.41 linux-image-5.4.0-1049-bluefield 5.4.0-1049.55 linux-image-5.4.0-1056-gkeop 5.4.0-1056.60 linux-image-5.4.0-1073-raspi 5.4.0-1073.84 linux-image-5.4.0-1078-kvm 5.4.0-1078.84 linux-image-5.4.0-1086-gke 5.4.0-1086.93 linux-image-5.4.0-1086-oracle 5.4.0-1086.95 linux-image-5.4.0-1088-aws 5.4.0-1088.96 linux-image-5.4.0-1092-gcp 5.4.0-1092.101 linux-image-5.4.0-1094-azure 5.4.0-1094.100 linux-image-5.4.0-131-generic 5.4.0-131.147 linux-image-5.4.0-131-generic-lpae 5.4.0-131.147 linux-image-5.4.0-131-lowlatency 5.4.0-131.147 linux-image-aws-lts-20.04 5.4.0.1088.87 linux-image-azure-lts-20.04 5.4.0.1094.90 linux-image-bluefield 5.4.0.1049.47 linux-image-gcp-lts-20.04 5.4.0.1092.96 linux-image-generic 5.4.0.131.131 linux-image-generic-lpae 5.4.0.131.131 linux-image-gke 5.4.0.1086.93 linux-image-gke-5.4 5.4.0.1086.93 linux-image-gkeop 5.4.0.1056.56 linux-image-gkeop-5.4 5.4.0.1056.56 linux-image-ibm 5.4.0.1036.64 linux-image-ibm-lts-20.04 5.4.0.1036.64 linux-image-kvm 5.4.0.1078.74 linux-image-lowlatency 5.4.0.131.131 linux-image-oem 5.4.0.131.131 linux-image-oem-osp1 5.4.0.131.131 linux-image-oracle-lts-20.04 5.4.0.1086.82 linux-image-raspi 5.4.0.1073.105 linux-image-raspi2 5.4.0.1073.105 linux-image-virtual 5.4.0.131.131 Ubuntu 18.04 LTS: linux-image-5.4.0-1036-ibm 5.4.0-1036.41~18.04.1 linux-image-5.4.0-1073-raspi 5.4.0-1073.84~18.04.1 linux-image-5.4.0-1086-oracle 5.4.0-1086.95~18.04.1 linux-image-5.4.0-1088-aws 5.4.0-1088.96~18.04.1 linux-image-5.4.0-1092-gcp 5.4.0-1092.101~18.04.1 linux-image-5.4.0-1094-azure 5.4.0-1094.100~18.04.1 linux-image-5.4.0-131-generic 5.4.0-131.147~18.04.1 linux-image-5.4.0-131-generic-lpae 5.4.0-131.147~18.04.1 linux-image-5.4.0-131-lowlatency 5.4.0-131.147~18.04.1 linux-image-aws 5.4.0.1088.67 linux-image-azure 5.4.0.1094.70 linux-image-gcp 5.4.0.1092.70 linux-image-generic-hwe-18.04 5.4.0.131.147~18.04.108 linux-image-generic-lpae-hwe-18.04 5.4.0.131.147~18.04.108 linux-image-ibm 5.4.0.1036.49 linux-image-lowlatency-hwe-18.04 5.4.0.131.147~18.04.108 linux-image-oem 5.4.0.131.147~18.04.108 linux-image-oem-osp1 5.4.0.131.147~18.04.108 linux-image-oracle 5.4.0.1086.95~18.04.62 linux-image-raspi-hwe-18.04 5.4.0.1073.72 linux-image-snapdragon-hwe-18.04 5.4.0.131.147~18.04.108 linux-image-virtual-hwe-18.04 5.4.0.131.147~18.04.108 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-5691-1

CVE-2022-2602, CVE-2022-41674, CVE-2022-42720, CVE-2022-42721

Severity
October 19, 2022

Package Information

https://launchpad.net/ubuntu/+source/linux/5.4.0-131.147 https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1088.96 https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1094.100 https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1049.55 https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1092.101 https://launchpad.net/ubuntu/+source/linux-gke/5.4.0-1086.93 https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1056.60 https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1036.41 https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1078.84 https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1086.95 https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1073.84 https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1088.96~18.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1094.100~18.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1092.101~18.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-131.147~18.04.1 https://launchpad.net/ubuntu/+source/linux-ibm-5.4/5.4.0-1036.41~18.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1086.95~18.04.1 https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1073.84~18.04.1

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