USN-6495-1: Linux kernel vulnerabilities
21 November 2023
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-bluefield - Linux kernel for NVIDIA BlueField platforms
- 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-iot - Linux kernel for IoT platforms
- 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
- linux-xilinx-zynqmp - Linux kernel for Xilinx ZynqMP processors
Details
Yu Hao discovered that the UBI driver in the Linux kernel did not properly
check for MTD with zero erasesize during device attachment. A local
privileged attacker could use this to cause a denial of service (system
crash). (CVE-2023-31085)
Manfred Rudigier discovered that the Intel(R) PCI-Express Gigabit (igb)
Ethernet driver in the Linux kernel did not properly validate received
frames that are larger than the set MTU size, leading to a buffer overflow
vulnerability. An attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2023-45871)
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-5.4.0-1026-iot
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5.4.0-1026.27
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linux-image-5.4.0-1034-xilinx-zynqmp
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5.4.0-1034.38
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linux-image-5.4.0-1061-ibm
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5.4.0-1061.66
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linux-image-5.4.0-1075-bluefield
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5.4.0-1075.81
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linux-image-5.4.0-1098-raspi
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5.4.0-1098.110
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linux-image-5.4.0-1103-kvm
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5.4.0-1103.110
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linux-image-5.4.0-1113-oracle
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5.4.0-1113.122
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linux-image-5.4.0-1114-aws
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5.4.0-1114.124
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linux-image-5.4.0-167-generic
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5.4.0-167.184
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linux-image-5.4.0-167-generic-lpae
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5.4.0-167.184
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linux-image-5.4.0-167-lowlatency
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5.4.0-167.184
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linux-image-aws-lts-20.04
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5.4.0.1114.111
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linux-image-bluefield
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5.4.0.1075.70
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linux-image-generic
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5.4.0.167.164
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linux-image-generic-lpae
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5.4.0.167.164
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linux-image-ibm-lts-20.04
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5.4.0.1061.90
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linux-image-kvm
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5.4.0.1103.99
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linux-image-lowlatency
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5.4.0.167.164
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linux-image-oem
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5.4.0.167.164
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linux-image-oem-osp1
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5.4.0.167.164
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linux-image-oracle-lts-20.04
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5.4.0.1113.106
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linux-image-raspi
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5.4.0.1098.128
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linux-image-raspi2
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5.4.0.1098.128
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linux-image-virtual
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5.4.0.167.164
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linux-image-xilinx-zynqmp
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5.4.0.1034.34
Ubuntu 18.04
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linux-image-5.4.0-1061-ibm
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5.4.0-1061.66~18.04.1
Available with Ubuntu Pro
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linux-image-5.4.0-1098-raspi
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5.4.0-1098.110~18.04.2
Available with Ubuntu Pro
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linux-image-5.4.0-1113-oracle
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5.4.0-1113.122~18.04.1
Available with Ubuntu Pro
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linux-image-5.4.0-1114-aws
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5.4.0-1114.124~18.04.1
Available with Ubuntu Pro
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linux-image-5.4.0-167-generic
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5.4.0-167.184~18.04.1
Available with Ubuntu Pro
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linux-image-5.4.0-167-lowlatency
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5.4.0-167.184~18.04.1
Available with Ubuntu Pro
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linux-image-aws
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5.4.0.1114.92
Available with Ubuntu Pro
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linux-image-generic-hwe-18.04
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5.4.0.167.184~18.04.135
Available with Ubuntu Pro
-
linux-image-ibm
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5.4.0.1061.72
Available with Ubuntu Pro
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linux-image-lowlatency-hwe-18.04
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5.4.0.167.184~18.04.135
Available with Ubuntu Pro
-
linux-image-oem
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5.4.0.167.184~18.04.135
Available with Ubuntu Pro
-
linux-image-oem-osp1
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5.4.0.167.184~18.04.135
Available with Ubuntu Pro
-
linux-image-oracle
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5.4.0.1113.122~18.04.85
Available with Ubuntu Pro
-
linux-image-raspi-hwe-18.04
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5.4.0.1098.95
Available with Ubuntu Pro
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linux-image-snapdragon-hwe-18.04
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5.4.0.167.184~18.04.135
Available with Ubuntu Pro
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linux-image-virtual-hwe-18.04
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5.4.0.167.184~18.04.135
Available with Ubuntu Pro
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.