USN-5691-1: Linux kernel vulnerabilities
19 October 2022
Several security issues were fixed in the Linux kernel.
Releases
Packages
- linux - Linux kernel
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-aws-5.4 - Linux kernel for Amazon Web Services (AWS) systems
- linux-azure - Linux kernel for Microsoft Azure Cloud systems
- linux-azure-5.4 - 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-gcp-5.4 - 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-hwe-5.4 - Linux hardware enablement (HWE) kernel
- linux-ibm - Linux kernel for IBM cloud systems
- linux-ibm-5.4 - Linux kernel for IBM cloud systems
- linux-kvm - Linux kernel for cloud environments
- linux-oracle - Linux kernel for Oracle Cloud systems
- linux-oracle-5.4 - Linux kernel for Oracle Cloud systems
- linux-raspi - Linux kernel for Raspberry Pi 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
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linux-image-5.4.0-1086-gke
-
5.4.0-1086.93
-
linux-image-gkeop
-
5.4.0.1056.56
-
linux-image-5.4.0-131-lowlatency
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5.4.0-131.147
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linux-image-5.4.0-1086-oracle
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5.4.0-1086.95
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linux-image-5.4.0-1078-kvm
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5.4.0-1078.84
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linux-image-oem
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5.4.0.131.131
-
linux-image-5.4.0-1092-gcp
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5.4.0-1092.101
-
linux-image-5.4.0-1088-aws
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5.4.0-1088.96
-
linux-image-bluefield
-
5.4.0.1049.47
-
linux-image-5.4.0-1056-gkeop
-
5.4.0-1056.60
-
linux-image-oem-osp1
-
5.4.0.131.131
-
linux-image-5.4.0-1094-azure
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5.4.0-1094.100
-
linux-image-5.4.0-1036-ibm
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5.4.0-1036.41
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linux-image-azure-lts-20.04
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5.4.0.1094.90
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linux-image-gkeop-5.4
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5.4.0.1056.56
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linux-image-5.4.0-131-generic-lpae
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5.4.0-131.147
-
linux-image-5.4.0-1073-raspi
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5.4.0-1073.84
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linux-image-ibm-lts-20.04
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5.4.0.1036.64
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linux-image-virtual
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5.4.0.131.131
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linux-image-gcp-lts-20.04
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5.4.0.1092.96
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linux-image-ibm
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5.4.0.1036.64
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linux-image-aws-lts-20.04
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5.4.0.1088.87
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linux-image-raspi2
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5.4.0.1073.105
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linux-image-5.4.0-131-generic
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5.4.0-131.147
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linux-image-kvm
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5.4.0.1078.74
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linux-image-5.4.0-1049-bluefield
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5.4.0-1049.55
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linux-image-oracle-lts-20.04
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5.4.0.1086.82
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linux-image-generic
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5.4.0.131.131
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linux-image-raspi
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5.4.0.1073.105
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linux-image-gke-5.4
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5.4.0.1086.93
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linux-image-gke
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5.4.0.1086.93
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linux-image-generic-lpae
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5.4.0.131.131
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linux-image-lowlatency
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5.4.0.131.131
Ubuntu 18.04
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linux-image-generic-hwe-18.04
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5.4.0.131.147~18.04.108
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linux-image-snapdragon-hwe-18.04
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5.4.0.131.147~18.04.108
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linux-image-5.4.0-131-lowlatency
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5.4.0-131.147~18.04.1
-
linux-image-5.4.0-1086-oracle
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5.4.0-1086.95~18.04.1
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linux-image-oem
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5.4.0.131.147~18.04.108
-
linux-image-aws
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5.4.0.1088.67
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linux-image-gcp
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5.4.0.1092.70
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linux-image-raspi-hwe-18.04
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5.4.0.1073.72
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linux-image-5.4.0-1092-gcp
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5.4.0-1092.101~18.04.1
-
linux-image-5.4.0-1088-aws
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5.4.0-1088.96~18.04.1
-
linux-image-ibm
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5.4.0.1036.49
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linux-image-oem-osp1
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5.4.0.131.147~18.04.108
-
linux-image-5.4.0-1073-raspi
-
5.4.0-1073.84~18.04.1
-
linux-image-generic-lpae-hwe-18.04
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5.4.0.131.147~18.04.108
-
linux-image-5.4.0-1094-azure
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5.4.0-1094.100~18.04.1
-
linux-image-5.4.0-1036-ibm
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5.4.0-1036.41~18.04.1
-
linux-image-5.4.0-131-generic-lpae
-
5.4.0-131.147~18.04.1
-
linux-image-azure
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5.4.0.1094.70
-
linux-image-virtual-hwe-18.04
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5.4.0.131.147~18.04.108
-
linux-image-5.4.0-131-generic
-
5.4.0-131.147~18.04.1
-
linux-image-oracle
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5.4.0.1086.95~18.04.62
-
linux-image-lowlatency-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.