1. Ubuntu Security Notices
  2. USN-5383-1

USN-5383-1: Linux kernel vulnerabilities

Publication date

20 April 2022

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

David Bouman discovered that the netfilter subsystem in the Linux kernel
did not properly validate passed user register indices. A local attacker
could use this to cause a denial of service or possibly execute arbitrary
code. (CVE-2022-1015)

Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver
in the Linux kernel did not properly handle some error conditions. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2021-43976)

Wenqing Liu discovered that the f2fs file system implementation in the
Linux kernel did not properly validate inode types while performing garbage
collection. An attacker could use this to construct a malicious f2fs image
that, when mounted and operated on, could cause a denial of service (system
crash). (

David Bouman discovered that the netfilter subsystem in the Linux kernel
did not properly validate passed user register indices. A local attacker
could use this to cause a denial of service or possibly execute arbitrary
code. (CVE-2022-1015)

Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver
in the Linux kernel did not properly handle some error conditions. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2021-43976)

Wenqing Liu discovered that the f2fs file system implementation in the
Linux kernel did not properly validate inode types while performing garbage
collection. An attacker could use this to construct a malicious f2fs image
that, when mounted and operated on, could cause a denial of service (system
crash). (CVE-2021-44879)

It was discovered that the UDF file system implementation in the Linux
kernel could attempt to dereference a null pointer in some situations. An
attacker could use this to construct a malicious UDF image that, when
mounted and operated on, could cause a denial of service (system crash).
(CVE-2022-0617)

David Bouman discovered that the netfilter subsystem in the Linux kernel
did not initialize memory in some situations. A local attacker could use
this to expose sensitive information (kernel memory). (CVE-2022-1016)

Lyu Tao discovered that the NFS implementation in the Linux kernel did not
properly handle requests to open a directory on a regular file. A local
attacker could use this to expose sensitive information (kernel memory).
(CVE-2022-24448)

It was discovered that the VirtIO Bluetooth driver in the Linux kernel did
not properly deallocate memory in some error conditions. A local attacker
could possibly use this to cause a denial of service (memory exhaustion).
(CVE-2022-26878)

It was discovered that the YAM AX.25 device driver in the Linux kernel did
not properly deallocate memory in some error conditions. A local privileged
attacker could use this to cause a denial of service (kernel memory
exhaustion). (CVE-2022-24959)

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
21.10 impish linux-image-5.13.0-40-generic-64k –  5.13.0-40.45
linux-image-virtual –  5.13.0.40.49
linux-image-generic-64k –  5.13.0.40.49
linux-image-generic –  5.13.0.40.49
linux-image-5.13.0-40-lowlatency –  5.13.0-40.45
linux-image-aws –  5.13.0.1022.23
linux-image-5.13.0-1022-azure –  5.13.0-1022.26
linux-image-5.13.0-1024-gcp –  5.13.0-1024.29
linux-image-5.13.0-1025-raspi-nolpae –  5.13.0-1025.27
linux-image-5.13.0-1021-kvm –  5.13.0-1021.22
linux-image-5.13.0-40-generic –  5.13.0-40.45
linux-image-azure –  5.13.0.1022.22
linux-image-5.13.0-40-generic-lpae –  5.13.0-40.45
linux-image-raspi-nolpae –  5.13.0.1025.30
linux-image-oem-20.04 –  5.13.0.40.49
linux-image-5.13.0-1022-aws –  5.13.0-1022.24
linux-image-gke –  5.13.0.1024.22
linux-image-gcp –  5.13.0.1024.22
linux-image-oracle –  5.13.0.1027.27
linux-image-5.13.0-1027-oracle –  5.13.0-1027.32
linux-image-raspi –  5.13.0.1025.30
linux-image-5.13.0-1025-raspi –  5.13.0-1025.27
linux-image-kvm –  5.13.0.1021.21
linux-image-generic-lpae –  5.13.0.40.49
linux-image-lowlatency –  5.13.0.40.49
20.04 focal linux-image-5.13.0-40-generic-64k –  5.13.0-40.45~20.04.1
linux-image-virtual-hwe-20.04 –  5.13.0.40.45~20.04.25
linux-image-intel –  5.13.0.1011.12
linux-image-gcp –  5.13.0.1024.29~20.04.1
linux-image-5.13.0-40-lowlatency –  5.13.0-40.45~20.04.1
linux-image-aws –  5.13.0.1022.24~20.04.15
linux-image-5.13.0-1022-azure –  5.13.0-1022.26~20.04.1
linux-image-lowlatency-hwe-20.04 –  5.13.0.40.45~20.04.25
linux-image-5.13.0-40-generic –  5.13.0-40.45~20.04.1
linux-image-5.13.0-1024-gcp –  5.13.0-1024.29~20.04.1
linux-image-generic-hwe-20.04 –  5.13.0.40.45~20.04.25
linux-image-azure –  5.13.0.1022.26~20.04.11
linux-image-5.13.0-40-generic-lpae –  5.13.0-40.45~20.04.1
linux-image-5.13.0-1022-aws –  5.13.0-1022.24~20.04.1
linux-image-oracle –  5.13.0.1027.32~20.04.1
linux-image-generic-lpae-hwe-20.04 –  5.13.0.40.45~20.04.25
linux-image-5.13.0-1027-oracle –  5.13.0-1027.32~20.04.1
linux-image-5.13.0-1011-intel –  5.13.0-1011.11
linux-image-generic-64k-hwe-20.04 –  5.13.0.40.45~20.04.25

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References

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