Ubuntu Security Notices
USN-6172-1

USN-6172-1: Linux kernel vulnerabilities

Publication date

16 June 2023

Overview

Several security issues were fixed in the Linux kernel.

Releases

22.04 LTS 20.04 LTS

Packages

linux - Linux kernel
linux-aws - Linux kernel for Amazon Web Services (AWS) systems
linux-aws-5.15 - Linux kernel for Amazon Web Services (AWS) systems
linux-azure - Linux kernel for Microsoft Azure Cloud systems
linux-azure-5.15 - Linux kernel for Microsoft Azure cloud systems
linux-azure-fde-5.15 - Linux kernel for Microsoft Azure CVM cloud systems
linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
linux-gcp-5.15 - Linux kernel for Google Cloud Platform (GCP) systems
linux-gke - Linux kernel for Google Container Engine (GKE) systems
linux-gke-5.15 - Linux kernel for Google Container Engine (GKE) systems
linux-gkeop - Linux kernel for Google Container Engine (GKE) systems
linux-hwe-5.15 - Linux hardware enablement (HWE) kernel
linux-ibm - Linux kernel for IBM cloud systems
linux-kvm - Linux kernel for cloud environments
linux-lowlatency - Linux low latency kernel
linux-lowlatency-hwe-5.15 - Linux low latency kernel
linux-oracle - Linux kernel for Oracle Cloud systems
linux-oracle-5.15 - Linux kernel for Oracle Cloud systems
linux-raspi - Linux kernel for Raspberry Pi systems

Details

It was discovered that the TUN/TAP driver in the Linux kernel did not
properly initialize socket data. A local attacker could use this to cause a
denial of service (system crash). (CVE-2023-1076)

It was discovered that the Real-Time Scheduling Class implementation 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-2023-1077)

It was discovered that the ASUS HID driver in the Linux kernel did not
properly handle device removal, leading to a use-after-free vulnerability.
A local attacker with physical access could plug in a specially crafted USB
device to cause a denial of service (system crash). (CVE-2023-1079)

It was discovered that the Xircom PCMCIA network device driver in the Linux
kernel did not...

It was discovered that the TUN/TAP driver in the Linux kernel did not
properly initialize socket data. A local attacker could use this to cause a
denial of service (system crash). (CVE-2023-1076)

It was discovered that the Xircom PCMCIA network device driver in the Linux
kernel did not properly handle device removal events. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2023-1670)

It was discovered that a race condition existed in the Xen transport layer
implementation for the 9P file system protocol in the Linux kernel, leading
to a use-after-free vulnerability. A local attacker could use this to cause
a denial of service (guest crash) or expose sensitive information (guest
kernel memory). (CVE-2023-1859)

Jose Oliveira and Rodrigo Branco discovered that the Spectre Variant 2
mitigations with prctl syscall were insufficient in some situations. A
local attacker could possibly use this to expose sensitive information.
(CVE-2023-1998)

It was discovered that the BigBen Interactive Kids' gamepad driver in the
Linux kernel did not properly handle device removal, leading to a use-
after-free vulnerability. A local attacker with physical access could plug
in a specially crafted USB device to cause a denial of service (system
crash). (CVE-2023-25012)

It was discovered that a use-after-free vulnerability existed in the HFS+
file system implementation in the Linux kernel. A local attacker could
possibly use this to cause a denial of service (system crash).
(CVE-2023-2985)

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
22.04 jammy	linux-image-gkeop – 5.15.0.1022.21
	linux-image-gcp-lts-22.04 – 5.15.0.1036.32
	linux-image-virtual – 5.15.0.75.73
	linux-image-generic-64k – 5.15.0.75.73
	linux-image-generic – 5.15.0.75.73
	linux-image-gke-5.15 – 5.15.0.1036.35
	linux-image-5.15.0-1022-gkeop – 5.15.0-1022.27
	linux-image-5.15.0-1032-raspi-nolpae – 5.15.0-1032.35
	linux-image-5.15.0-75-lowlatency-64k – 5.15.0-75.82
	linux-image-ibm – 5.15.0.1032.28
	linux-image-lowlatency-64k – 5.15.0.75.80
	linux-image-5.15.0-1038-aws – 5.15.0-1038.43
	linux-image-5.15.0-75-generic – 5.15.0-75.82
	linux-image-5.15.0-1035-kvm – 5.15.0-1035.40
	linux-image-azure-lts-22.04 – 5.15.0.1040.36
	linux-image-azure – 5.15.0.1040.36
	linux-image-5.15.0-1036-gcp – 5.15.0-1036.44
	linux-image-raspi-nolpae – 5.15.0.1032.29
	linux-image-aws-lts-22.04 – 5.15.0.1038.37
	linux-image-gke – 5.15.0.1036.35
	linux-image-5.15.0-1036-gke – 5.15.0-1036.41
	linux-image-5.15.0-1037-oracle – 5.15.0-1037.43
	linux-image-5.15.0-75-generic-lpae – 5.15.0-75.82
	linux-image-5.15.0-75-generic-64k – 5.15.0-75.82
	linux-image-gkeop-5.15 – 5.15.0.1022.21
	linux-image-oracle – 5.15.0.1037.32
	linux-image-5.15.0-1032-raspi – 5.15.0-1032.35
	linux-image-raspi – 5.15.0.1032.29
	linux-image-5.15.0-1032-ibm – 5.15.0-1032.35
	linux-image-kvm – 5.15.0.1035.31
	linux-image-5.15.0-1040-azure – 5.15.0-1040.47
	linux-image-generic-lpae – 5.15.0.75.73
	linux-image-5.15.0-75-lowlatency – 5.15.0-75.82
	linux-image-lowlatency – 5.15.0.75.80
20.04 focal	linux-image-virtual – 5.4.0.152.149
	linux-image-5.4.0-152-generic-lpae – 5.4.0-152.169
	linux-image-aws – 5.15.0.1038.43~20.04.27
	linux-image-5.4.0-152-generic – 5.4.0-152.169
	linux-image-5.15.0-1040-azure-fde – 5.15.0-1040.47~20.04.1.1
	linux-image-5.15.0-75-generic – 5.15.0-75.82~20.04.1
	linux-image-azure – 5.15.0.1040.47~20.04.30
	linux-image-5.15.0-1036-gcp – 5.15.0-1036.44~20.04.1
	linux-image-lowlatency-64k-hwe-20.04 – 5.15.0.75.82~20.04.33
	linux-image-lowlatency – 5.4.0.152.149
	linux-image-gke-5.15 – 5.15.0.1036.41~20.04.1
	linux-image-oem-osp1 – 5.4.0.152.149
	linux-image-5.15.0-1038-aws – 5.15.0-1038.43~20.04.1
	linux-image-5.4.0-152-lowlatency – 5.4.0-152.169
	linux-image-oem-20.04c – 5.15.0.75.82~20.04.36
	linux-image-oem-20.04b – 5.15.0.75.82~20.04.36
	linux-image-5.15.0-1040-azure – 5.15.0-1040.47~20.04.1
	linux-image-oem-20.04d – 5.15.0.75.82~20.04.36
	linux-image-5.15.0-1037-oracle – 5.15.0-1037.43~20.04.1
	linux-image-gcp – 5.15.0.1036.44~20.04.1
	linux-image-5.15.0-75-generic-lpae – 5.15.0-75.82~20.04.1
	linux-image-5.15.0-75-generic-64k – 5.15.0-75.82~20.04.1
	linux-image-generic-lpae – 5.4.0.152.149
	linux-image-5.15.0-75-lowlatency – 5.15.0-75.82~20.04.1
	linux-image-oem – 5.4.0.152.149
	linux-image-5.15.0-75-lowlatency-64k – 5.15.0-75.82~20.04.1
	linux-image-azure-fde – 5.15.0.1040.47~20.04.1.19
	linux-image-oracle – 5.15.0.1037.43~20.04.1
	linux-image-generic-lpae-hwe-20.04 – 5.15.0.75.82~20.04.36
	linux-image-virtual-hwe-20.04 – 5.15.0.75.82~20.04.36
	linux-image-generic – 5.4.0.152.149
	linux-image-azure-cvm – 5.15.0.1040.47~20.04.30
	linux-image-lowlatency-hwe-20.04 – 5.15.0.75.82~20.04.33
	linux-image-generic-hwe-20.04 – 5.15.0.75.82~20.04.36
	linux-image-oem-20.04 – 5.15.0.75.82~20.04.36
	linux-image-5.15.0-1036-gke – 5.15.0-1036.41~20.04.1
	linux-image-generic-64k-hwe-20.04 – 5.15.0.75.82~20.04.36

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References

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