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Linux kernel vulnerabilities

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

-   Ubuntu 20.04 LTS
-   Ubuntu 18.04 LTS
-   Ubuntu 22.04 LTS

Summary

Several security issues were fixed in the 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-gkeop - Linux kernel for Google Container Engine (GKE) systems
-   linux-ibm - Linux kernel for IBM cloud systems

Details

David Bouman discovered that the netfilter subsystem in the Linux kernel
did not properly validate passed user register indices. A local attacker
could use this to cause a denial of service or possibly execute
arbitrary code. (CVE-2022-1015)

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)

Sönke Huster discovered that the WiFi driver stack in the Linux kernel
contained a NULL pointer dereference vulnerability in certain situations. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2022-42722)

Update instructions

The problem can be corrected by updating your kernel livepatch to the
following versions:

Ubuntu 20.04 LTS
    aws - 90.2
    aws - 90.3
    azure - 90.2
    gcp - 90.2
    gcp - 90.3
    generic - 90.2
    gke - 90.2
    gke - 90.3
    gkeop - 90.2
    ibm - 90.2
    lowlatency - 90.2

Ubuntu 18.04 LTS
    aws - 90.2
    azure - 90.2
    gcp - 90.2
    generic - 90.2
    gke - 90.2
    gkeop - 90.2
    ibm - 90.2
    lowlatency - 90.2

Ubuntu 22.04 LTS
    aws - 90.1
    aws - 90.2
    azure - 90.1
    azure - 90.2
    gcp - 90.1
    gcp - 90.2
    generic - 90.2
    gke - 90.1
    gke - 90.2
    ibm - 90.1
    ibm - 90.2
    lowlatency - 90.2

Support Information

Kernels older than the levels listed below do not receive livepatch
updates. If you are running a kernel version earlier than the one listed
below, please upgrade your kernel as soon as possible.

Ubuntu 20.04 LTS
    linux-aws-5.15 - 5.15.0-1000
    linux-aws - 5.4.0-1009
    linux-aws - 5.4.0-1061
    linux-azure-5.15 - 5.15.0-1069
    linux-azure - 5.4.0-1010
    linux-gcp-5.15 - 5.15.0-1000
    linux-gcp - 5.4.0-1009
    linux-gke-5.15 - 5.15.0-1000
    linux-gke - 5.4.0-1033
    linux-gkeop - 5.4.0-1009
    linux-hwe - 5.15.0-0
    linux-ibm-5.15 - 5.15.0-1000
    linux-ibm - 5.4.0-1009
    linux-oem - 5.4.0-26
    linux - 5.4.0-26

Ubuntu 18.04 LTS
    linux-aws-5.4 - 5.4.0-1069
    linux-aws - 4.15.0-1054
    linux-aws - 4.15.0-1119
    linux-azure-4.15 - 4.15.0-1115
    linux-azure-5.4 - 5.4.0-1069
    linux-gcp-4.15 - 4.15.0-1121
    linux-gcp-5.4 - 5.4.0-1069
    linux-gke-4.15 - 4.15.0-1076
    linux-gke-5.4 - 5.4.0-1009
    linux-gkeop-5.4 - 5.4.0-1007
    linux-hwe-5.4 - 5.4.0-26
    linux-ibm-5.4 - 5.4.0-1009
    linux-oem - 4.15.0-1063
    linux - 4.15.0-69

Ubuntu 16.04 ESM
    linux-aws-hwe - 4.15.0-1126
    linux-aws - 4.4.0-1098
    linux-aws - 4.4.0-1129
    linux-azure - 4.15.0-1063
    linux-azure - 4.15.0-1078
    linux-azure - 4.15.0-1114
    linux-gcp - 4.15.0-1118
    linux-hwe - 4.15.0-143
    linux-hwe - 4.15.0-69
    linux - 4.4.0-168
    linux - 4.4.0-211

Ubuntu 22.04 LTS
    linux-aws - 5.15.0-1000
    linux-azure - 5.15.0-1000
    linux-gcp - 5.15.0-1000
    linux-gke - 5.15.0-1000
    linux-ibm - 5.15.0-1000
    linux - 5.15.0-24
    linux - 5.15.0-25

Ubuntu 14.04 ESM
    linux-lts-xenial - 4.4.0-168

References

-   CVE-2022-1015
-   CVE-2022-2602
-   CVE-2022-41674
-   CVE-2022-42720
-   CVE-2022-42721
-   CVE-2022-42722

Ubuntu 0090-1: Linux kernel vulnerability

November 16, 2022
Several security issues were fixed in the kernel.

Summary

Update Instructions

The problem can be corrected by updating your kernel livepatch to the following versions: Ubuntu 20.04 LTS aws - 90.2 aws - 90.3 azure - 90.2 gcp - 90.2 gcp - 90.3 generic - 90.2 gke - 90.2 gke - 90.3 gkeop - 90.2 ibm - 90.2 lowlatency - 90.2 Ubuntu 18.04 LTS aws - 90.2 azure - 90.2 gcp - 90.2 generic - 90.2 gke - 90.2 gkeop - 90.2 ibm - 90.2 lowlatency - 90.2 Ubuntu 22.04 LTS aws - 90.1 aws - 90.2 azure - 90.1 azure - 90.2 gcp - 90.1 gcp - 90.2 generic - 90.2 gke - 90.1 gke - 90.2 ibm - 90.1 ibm - 90.2 lowlatency - 90.2 Support Information Kernels older than the levels listed below do not receive livepatch updates. If you are running a kernel version earlier than the one listed below, please upgrade your kernel as soon as possible. Ubuntu 20.04 LTS linux-aws-5.15 - 5.15.0-1000 linux-aws - 5.4.0-1009 linux-aws - 5.4.0-1061 linux-azure-5.15 - 5.15.0-1069 linux-azure - 5.4.0-1010 linux-gcp-5.15 - 5.15.0-1000 linux-gcp - 5.4.0-1009 linux-gke-5.15 - 5.15.0-1000 linux-gke - 5.4.0-1033 linux-gkeop - 5.4.0-1009 linux-hwe - 5.15.0-0 linux-ibm-5.15 - 5.15.0-1000 linux-ibm - 5.4.0-1009 linux-oem - 5.4.0-26 linux - 5.4.0-26 Ubuntu 18.04 LTS linux-aws-5.4 - 5.4.0-1069 linux-aws - 4.15.0-1054 linux-aws - 4.15.0-1119 linux-azure-4.15 - 4.15.0-1115 linux-azure-5.4 - 5.4.0-1069 linux-gcp-4.15 - 4.15.0-1121 linux-gcp-5.4 - 5.4.0-1069 linux-gke-4.15 - 4.15.0-1076 linux-gke-5.4 - 5.4.0-1009 linux-gkeop-5.4 - 5.4.0-1007 linux-hwe-5.4 - 5.4.0-26 linux-ibm-5.4 - 5.4.0-1009 linux-oem - 4.15.0-1063 linux - 4.15.0-69 Ubuntu 16.04 ESM linux-aws-hwe - 4.15.0-1126 linux-aws - 4.4.0-1098 linux-aws - 4.4.0-1129 linux-azure - 4.15.0-1063 linux-azure - 4.15.0-1078 linux-azure - 4.15.0-1114 linux-gcp - 4.15.0-1118 linux-hwe - 4.15.0-143 linux-hwe - 4.15.0-69 linux - 4.4.0-168 linux - 4.4.0-211 Ubuntu 22.04 LTS linux-aws - 5.15.0-1000 linux-azure - 5.15.0-1000 linux-gcp - 5.15.0-1000 linux-gke - 5.15.0-1000 linux-ibm - 5.15.0-1000 linux - 5.15.0-24 linux - 5.15.0-25 Ubuntu 14.04 ESM linux-lts-xenial - 4.4.0-168 References - CVE-2022-1015 - CVE-2022-2602 - CVE-2022-41674 - CVE-2022-42720 - CVE-2022-42721 - CVE-2022-42722

References

Severity

Package Information

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