1. Ubuntu Security Notices
  2. USN-6246-1

USN-6246-1: Linux kernel vulnerabilities

Publication date

25 July 2023

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

It was discovered that the IP-VLAN network driver for the Linux kernel did
not properly initialize memory in some situations, leading to an out-of-
bounds write vulnerability. An attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2023-3090)

Mingi Cho discovered that the netfilter subsystem in the Linux kernel did
not properly validate the status of a nft chain while performing a lookup
by id, leading to a use-after-free vulnerability. An attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2023-31248)

Querijn Voet 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...

It was discovered that the IP-VLAN network driver for the Linux kernel did
not properly initialize memory in some situations, leading to an out-of-
bounds write vulnerability. An attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2023-3090)

Mingi Cho discovered that the netfilter subsystem in the Linux kernel did
not properly validate the status of a nft chain while performing a lookup
by id, leading to a use-after-free vulnerability. An attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2023-31248)

Querijn Voet 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-2023-3389)

It was discovered that the netfilter subsystem in the Linux kernel did not
properly handle some error conditions, 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-2023-3390)

Lin Ma discovered that a race condition existed in the MCTP implementation
in the Linux kernel, leading to a use-after-free vulnerability. A
privileged attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2023-3439)

Tanguy Dubroca discovered that the netfilter subsystem in the Linux kernel
did not properly handle certain pointer data type, leading to an out-of-
bounds write vulnerability. A privileged attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-35001)

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-nvidia-lowlatency –  5.15.0.1029.29
linux-image-gkeop –  5.15.0.1024.23
linux-image-virtual –  5.15.0.78.75
linux-image-5.15.0-1042-azure –  5.15.0-1042.49
linux-image-azure –  5.15.0.1042.38
linux-image-5.15.0-78-lowlatency –  5.15.0-78.85
linux-image-kvm –  5.15.0.1038.34
linux-image-lowlatency –  5.15.0.78.82
linux-image-5.15.0-1029-nvidia –  5.15.0-1029.29
linux-image-generic-64k –  5.15.0.78.75
linux-image-gke-5.15 –  5.15.0.1038.37
linux-image-5.15.0-78-generic-64k –  5.15.0-78.85
linux-image-5.15.0-1034-raspi –  5.15.0-1034.37
linux-image-5.15.0-1040-aws –  5.15.0-1040.45
linux-image-gkeop-5.15 –  5.15.0.1024.23
linux-image-5.15.0-78-generic-lpae –  5.15.0-78.85
linux-image-5.15.0-1039-oracle –  5.15.0-1039.45
linux-image-generic-lpae –  5.15.0.78.75
linux-image-5.15.0-1034-ibm –  5.15.0-1034.37
linux-image-ibm –  5.15.0.1034.30
linux-image-5.15.0-1038-kvm –  5.15.0-1038.43
linux-image-intel-iotg –  5.15.0.1036.35
linux-image-5.15.0-1042-azure-fde –  5.15.0-1042.49.1
linux-image-azure-fde-lts-22.04 –  5.15.0.1042.49.20
linux-image-azure-fde –  5.15.0.1042.49.20
linux-image-aws-lts-22.04 –  5.15.0.1040.39
linux-image-5.15.0-1036-intel-iotg –  5.15.0-1036.41
linux-image-gke –  5.15.0.1038.37
linux-image-gcp-lts-22.04 –  5.15.0.1038.34
linux-image-oracle –  5.15.0.1039.34
linux-image-raspi –  5.15.0.1034.32
linux-image-5.15.0-1038-gke –  5.15.0-1038.43
linux-image-5.15.0-1029-nvidia-lowlatency –  5.15.0-1029.29
linux-image-5.15.0-78-generic –  5.15.0-78.85
linux-image-generic –  5.15.0.78.75
linux-image-azure-lts-22.04 –  5.15.0.1042.38
linux-image-lowlatency-64k –  5.15.0.78.82
linux-image-5.15.0-78-lowlatency-64k –  5.15.0-78.85
linux-image-5.15.0-1024-gkeop –  5.15.0-1024.29
linux-image-5.15.0-1034-raspi-nolpae –  5.15.0-1034.37
linux-image-raspi-nolpae –  5.15.0.1034.32
linux-image-5.15.0-1038-gcp –  5.15.0-1038.46
linux-image-nvidia –  5.15.0.1029.29
20.04 focal linux-image-azure-fde –  5.15.0.1042.49~20.04.1.21
linux-image-virtual-hwe-20.04 –  5.15.0.78.85~20.04.38
linux-image-5.15.0-78-generic –  5.15.0-78.85~20.04.1
linux-image-aws –  5.15.0.1040.45~20.04.29
linux-image-azure-cvm –  5.15.0.1042.49~20.04.32
linux-image-gke-5.15 –  5.15.0.1038.43~20.04.1
linux-image-lowlatency-hwe-20.04 –  5.15.0.78.85~20.04.35
linux-image-5.15.0-1042-azure –  5.15.0-1042.49~20.04.1
linux-image-5.15.0-78-lowlatency-64k –  5.15.0-78.85~20.04.1
linux-image-generic-hwe-20.04 –  5.15.0.78.85~20.04.38
linux-image-5.15.0-78-generic-64k –  5.15.0-78.85~20.04.1
linux-image-oem-20.04b –  5.15.0.78.85~20.04.38
linux-image-5.15.0-1042-azure-fde –  5.15.0-1042.49~20.04.1.1
linux-image-5.15.0-1024-gkeop –  5.15.0-1024.29~20.04.1
linux-image-oem-20.04c –  5.15.0.78.85~20.04.38
linux-image-oem-20.04d –  5.15.0.78.85~20.04.38
linux-image-azure –  5.15.0.1042.49~20.04.32
linux-image-oem-20.04 –  5.15.0.78.85~20.04.38
linux-image-lowlatency-64k-hwe-20.04 –  5.15.0.78.85~20.04.35
linux-image-gcp –  5.15.0.1038.46~20.04.1
linux-image-gkeop-5.15 –  5.15.0.1024.29~20.04.20
linux-image-generic-64k-hwe-20.04 –  5.15.0.78.85~20.04.38
linux-image-oracle –  5.15.0.1039.45~20.04.1
linux-image-generic-lpae-hwe-20.04 –  5.15.0.78.85~20.04.38
linux-image-5.15.0-1040-aws –  5.15.0-1040.45~20.04.1
linux-image-5.15.0-78-lowlatency –  5.15.0-78.85~20.04.1
linux-image-5.15.0-1038-gcp –  5.15.0-1038.46~20.04.1
linux-image-5.15.0-78-generic-lpae –  5.15.0-78.85~20.04.1
linux-image-5.15.0-1039-oracle –  5.15.0-1039.45~20.04.1
linux-image-5.15.0-1038-gke –  5.15.0-1038.43~20.04.1

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References

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