1. Ubuntu Security Notices
  2. USN-6029-1

USN-6029-1: Linux kernel vulnerabilities

Publication date

19 April 2023

Overview

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-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems
  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-azure-4.15 - Linux kernel for Microsoft Azure Cloud systems
  • linux-dell300x - Linux kernel for Dell 300x platforms
  • linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-gcp-4.15 - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-hwe - Linux hardware enablement (HWE) kernel
  • linux-kvm - Linux kernel for cloud environments
  • linux-oracle - Linux kernel for Oracle Cloud systems
  • linux-raspi2 - Linux kernel for Raspberry Pi systems

Details

It was discovered that the Traffic-Control Index (TCINDEX) implementation
in the Linux kernel contained 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-2023-1281)

It was discovered that the infrared transceiver USB driver did not properly
handle USB control messages. A local attacker with physical access could
plug in a specially crafted USB device to cause a denial of service (memory
exhaustion). (CVE-2022-3903)

It was discovered that the Human Interface Device (HID) support driver in
the Linux kernel contained a type confusion vulnerability in some
situations. A local attacker could use this to cause a denial of service
(system crash). (CVE-2023-1073)

It was discovered that a memory leak existed in the SCTP...

It was discovered that the Traffic-Control Index (TCINDEX) implementation
in the Linux kernel contained 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-2023-1281)

It was discovered that the infrared transceiver USB driver did not properly
handle USB control messages. A local attacker with physical access could
plug in a specially crafted USB device to cause a denial of service (memory
exhaustion). (CVE-2022-3903)

It was discovered that the Human Interface Device (HID) support driver in
the Linux kernel contained a type confusion vulnerability in some
situations. A local attacker could use this to cause a denial of service
(system crash). (CVE-2023-1073)

It was discovered that a memory leak existed in the SCTP protocol
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (memory exhaustion). (CVE-2023-1074)

Lianhui Tang discovered that the MPLS implementation in the Linux kernel
did not properly handle certain sysctl allocation failure conditions,
leading to a double-free vulnerability. An attacker could use this to cause
a denial of service or possibly execute arbitrary code. (CVE-2023-26545)

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

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

Ubuntu Release Package Version
18.04 bionic linux-image-virtual –  4.15.0.209.192
linux-image-aws-lts-18.04 –  4.15.0.1154.152
linux-image-generic –  4.15.0.209.192
linux-image-4.15.0-1130-raspi2 –  4.15.0-1130.138
linux-image-4.15.0-1154-aws –  4.15.0-1154.167
linux-image-4.15.0-1148-gcp –  4.15.0-1148.164
linux-image-oracle-lts-18.04 –  4.15.0.1117.122
linux-image-4.15.0-1117-oracle –  4.15.0-1117.128
linux-image-4.15.0-1163-azure –  4.15.0-1163.178
linux-image-lowlatency –  4.15.0.209.192
linux-image-4.15.0-209-lowlatency –  4.15.0-209.220
linux-image-dell300x –  4.15.0.1063.62
linux-image-raspi2 –  4.15.0.1130.125
linux-image-azure-lts-18.04 –  4.15.0.1163.131
linux-image-4.15.0-1138-kvm –  4.15.0-1138.143
linux-image-4.15.0-209-generic-lpae –  4.15.0-209.220
linux-image-gcp-lts-18.04 –  4.15.0.1148.162
linux-image-4.15.0-209-generic –  4.15.0-209.220
linux-image-generic-lpae –  4.15.0.209.192
linux-image-4.15.0-1063-dell300x –  4.15.0-1063.68
linux-image-kvm –  4.15.0.1138.129
16.04 xenial linux-image-oem –  4.15.0.209.194  
linux-image-4.15.0-1154-aws –  4.15.0-1154.167~16.04.1  
linux-image-lowlatency-hwe-16.04 –  4.15.0.209.194  
linux-image-4.15.0-1148-gcp –  4.15.0-1148.164~16.04.1  
linux-image-4.15.0-1117-oracle –  4.15.0-1117.128~16.04.1  
linux-image-4.15.0-1163-azure –  4.15.0-1163.178~16.04.1  
linux-image-aws-hwe –  4.15.0.1154.137  
linux-image-4.15.0-209-lowlatency –  4.15.0-209.220~16.04.1  
linux-image-azure –  4.15.0.1163.147  
linux-image-gke –  4.15.0.1148.138  
linux-image-gcp –  4.15.0.1148.138  
linux-image-generic-hwe-16.04 –  4.15.0.209.194  
linux-image-oracle –  4.15.0.1117.98  
linux-image-4.15.0-209-generic –  4.15.0-209.220~16.04.1  
linux-image-virtual-hwe-16.04 –  4.15.0.209.194  
14.04 trusty linux-image-azure –  4.15.0.1163.129  
linux-image-4.15.0-1163-azure –  4.15.0-1163.178~14.04.1  

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References

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