Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-4751-1: Linux kernel vulnerabilities

25 February 2021

Several security issues were fixed in the Linux kernel.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

  • linux - Linux kernel
  • linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-hwe-5.8 - Linux hardware enablement (HWE) kernel
  • linux-kvm - Linux kernel for cloud environments
  • linux-oracle - Linux kernel for Oracle Cloud systems
  • linux-raspi - Linux kernel for Raspberry Pi (V8) systems

Details

It was discovered that the console keyboard driver in the Linux kernel
contained a race condition. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2020-25656)

Minh Yuan discovered that the tty driver in the Linux kernel contained race
conditions when handling fonts. A local attacker could possibly use this to
expose sensitive information (kernel memory). (CVE-2020-25668)

Bodong Zhao discovered a use-after-free in the Sun keyboard driver
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service or possibly execute arbitrary code.
(CVE-2020-25669)

Kiyin (尹亮) discovered that the perf subsystem in the Linux kernel did
not properly deallocate memory in some situations. A privileged attacker
could use this to cause a denial of service (kernel memory exhaustion).
(CVE-2020-25704)

Julien Grall discovered that the Xen dom0 event handler in the Linux kernel
did not properly limit the number of events queued. An attacker in a guest
VM could use this to cause a denial of service in the host OS.
(CVE-2020-27673)

Jinoh Kang discovered that the Xen event channel infrastructure in the
Linux kernel contained a race condition. An attacker in guest could
possibly use this to cause a denial of service (dom0 crash).
(CVE-2020-27675)

Daniel Axtens discovered that PowerPC RTAS implementation in the Linux
kernel did not properly restrict memory accesses in some situations. A
privileged local attacker could use this to arbitrarily modify kernel
memory, potentially bypassing kernel lockdown restrictions.
(CVE-2020-27777)

It was discovered that the jfs file system implementation in the Linux
kernel contained an out-of-bounds read vulnerability. A local attacker
could use this to possibly cause a denial of service (system crash).
(CVE-2020-27815)

Shisong Qin and Bodong Zhao discovered that Speakup screen reader driver in
the Linux kernel did not correctly handle setting line discipline in some
situations. A local attacker could use this to cause a denial of service
(system crash). (CVE-2020-27830, CVE-2020-28941)

It was discovered that a use-after-free vulnerability existed in the
infiniband hfi1 device driver in the Linux kernel. A local attacker could
possibly use this to cause a denial of service (system crash).
(CVE-2020-27835)

It was discovered that an information leak existed in the syscall
implementation in the Linux kernel on 32 bit systems. A local attacker
could use this to expose sensitive information (kernel memory).
(CVE-2020-28588)

Minh Yuan discovered that the framebuffer console driver in the Linux
kernel did not properly handle fonts in some conditions. A local attacker
could use this to cause a denial of service (system crash) or possibly
expose sensitive information (kernel memory). (CVE-2020-28974)

Michael Kurth and Pawel Wieczorkiewicz discovered that the Xen event
processing backend in the Linux kernel did not properly limit the number of
events queued. An attacker in a guest VM could use this to cause a denial
of service in the host OS. (CVE-2020-29568)

Olivier Benjamin and Pawel Wieczorkiewicz discovered a race condition the
Xen paravirt block backend in the Linux kernel, leading to a use-after-free
vulnerability. An attacker in a guest VM could use this to cause a denial
of service in the host OS. (CVE-2020-29569)

Jann Horn discovered that the tty subsystem of the Linux kernel did not use
consistent locking in some situations, leading to a read-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly expose sensitive information (kernel memory).
(CVE-2020-29660)

Jann Horn discovered a race condition in the tty subsystem of the Linux
kernel in the locking for the TIOCSPGRP ioctl(), 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-2020-29661)

It was discovered that a race condition existed that caused the Linux
kernel to not properly restrict exit signal delivery. A local attacker
could possibly use this to send signals to arbitrary processes.
(CVE-2020-35508)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.10
Ubuntu 20.04

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.

References

Related notices

  • USN-4679-1: linux-image-gcp, linux-aws-5.4, linux-image-snapdragon-hwe-18.04-edge, linux-image-lowlatency-hwe-20.04, linux-image-generic-hwe-18.04-edge, linux-image-snapdragon-hwe-18.04, linux-image-5.4.0-1031-kvm, linux-image-raspi2-hwe-18.04, linux, linux-image-lowlatency, linux-image-lowlatency-hwe-18.04-edge, linux-image-raspi-hwe-18.04-edge, linux-image-5.4.0-1033-gcp, linux-image-azure, linux-image-lowlatency-hwe-18.04, linux-image-5.4.0-59-generic, linux-image-azure-edge, linux-image-5.4.0-59-lowlatency, linux-image-virtual-hwe-18.04-edge, linux-image-virtual-hwe-20.04, linux-image-generic, linux-image-virtual-hwe-18.04, linux-oracle, linux-image-5.4.0-1035-azure, linux-image-5.4.0-1026-raspi, linux-image-generic-lpae, linux-image-oem, linux-raspi, linux-azure, linux-image-gke-5.4, linux-gcp-5.4, linux-image-5.4.0-1034-oracle, linux-image-aws-edge, linux-raspi-5.4, linux-image-aws, linux-image-raspi, linux-hwe-5.4, linux-image-raspi2, linux-image-kvm, linux-gcp, linux-image-raspi-hwe-18.04, linux-aws, linux-image-generic-hwe-18.04, linux-gke-5.4, linux-oracle-5.4, linux-azure-5.4, linux-image-generic-hwe-20.04, linux-image-raspi2-hwe-18.04-edge, linux-image-oem-osp1, linux-image-oracle, linux-image-generic-lpae-hwe-18.04, linux-image-gcp-edge, linux-image-virtual, linux-image-generic-lpae-hwe-18.04-edge, linux-kvm, linux-image-generic-lpae-hwe-20.04, linux-image-5.4.0-1034-aws, linux-image-oracle-edge, linux-image-5.4.0-59-generic-lpae, linux-image-5.4.0-1033-gke
  • USN-4710-1: linux-image-lowlatency-hwe-16.04-edge, linux-image-4.15.0-135-generic, linux-image-4.15.0-133-generic, linux, linux-image-lowlatency, linux-image-4.15.0-135-generic-lpae, linux-image-virtual-hwe-16.04-edge, linux-image-generic, linux-image-virtual-hwe-16.04, linux-image-generic-lpae, linux-image-oem, linux-image-generic-lpae-hwe-16.04, linux-image-4.15.0-135-lowlatency, linux-image-lowlatency-hwe-16.04, linux-image-generic-hwe-16.04, linux-image-4.15.0-133-generic-lpae, linux-image-generic-lpae-hwe-16.04-edge, linux-hwe, linux-image-generic-hwe-16.04-edge, linux-image-virtual, linux-image-4.15.0-133-lowlatency
  • USN-4711-1: linux-image-oracle-lts-18.04, linux-image-gcp, linux-image-4.15.0-1084-kvm, linux-image-gcp-lts-18.04, linux-snapdragon, linux-gcp-4.15, linux-image-gke, linux-azure-4.15, linux-image-4.15.0-1095-snapdragon, linux-image-4.15.0-1093-aws, linux-image-azure, linux-kvm, linux-image-azure-edge, linux-oracle, linux-image-4.15.0-1078-raspi2, linux-image-aws-hwe, linux-image-4.15.0-1106-azure, linux-azure, linux-image-4.15.0-1078-gke, linux-image-aws-lts-18.04, linux-image-snapdragon, linux-aws-hwe, linux-image-raspi2, linux-image-azure-lts-18.04, linux-image-kvm, linux-gcp, linux-gke-4.15, linux-image-4.15.0-1092-gcp, linux-aws, linux-image-4.15.0-1064-oracle, linux-image-oracle, linux-raspi2, linux-image-gke-4.15
  • USN-4752-1: linux-oem-5.6, linux-image-oem-20.04, linux-image-5.6.0-1048-oem
  • USN-4750-1: linux-image-5.4.0-1038-oracle, linux-image-gcp, linux-image-5.4.0-1029-raspi, linux-image-5.4.0-1033-kvm, linux-aws-5.4, linux-image-snapdragon-hwe-18.04-edge, linux-image-5.4.0-1010-gkeop, linux-image-snapdragon-hwe-18.04, linux-image-generic-hwe-18.04-edge, linux-image-raspi2-hwe-18.04, linux, linux-image-lowlatency, linux-image-lowlatency-hwe-18.04-edge, linux-image-raspi-hwe-18.04-edge, linux-image-azure, linux-image-lowlatency-hwe-18.04, linux-image-azure-edge, linux-image-virtual-hwe-18.04-edge, linux-oracle, linux-image-5.4.0-1037-gcp, linux-image-generic, linux-image-virtual-hwe-18.04, linux-image-gkeop, linux-image-5.4.0-1040-azure, linux-raspi, linux-image-generic-lpae, linux-image-5.4.0-1036-gke, linux-image-oem, linux-azure, linux-image-gke-5.4, linux-gkeop-5.4, linux-image-5.4.0-66-generic-lpae, linux-image-aws-edge, linux-raspi-5.4, linux-image-aws, linux-image-raspi, linux-hwe-5.4, linux-image-raspi2, linux-image-kvm, linux-gcp, linux-image-raspi-hwe-18.04, linux-aws, linux-image-5.4.0-1038-aws, linux-gkeop, linux-image-generic-hwe-18.04, linux-gke-5.4, linux-oracle-5.4, linux-azure-5.4, linux-image-gkeop-5.4, linux-image-raspi2-hwe-18.04-edge, linux-image-oem-osp1, linux-image-5.4.0-66-generic, linux-image-oracle, linux-image-5.4.0-66-lowlatency, linux-image-gcp-edge, linux-image-generic-lpae-hwe-18.04, linux-image-virtual, linux-image-generic-lpae-hwe-18.04-edge, linux-kvm, linux-gcp-5.4, linux-image-oracle-edge
  • USN-4748-1: linux-image-generic-lts-utopic, linux-image-generic-lts-xenial, linux-image-4.4.0-203-powerpc64-smp, linux-snapdragon, linux-image-4.4.0-203-powerpc64-emb, linux-image-virtual-lts-wily, linux-image-generic-lts-vivid, linux-image-4.4.0-203-lowlatency, linux, linux-image-lowlatency, linux-image-generic-lts-wily, linux-image-powerpc64-emb-lts-vivid, linux-image-powerpc-e500mc, linux-image-virtual-lts-utopic, linux-image-generic-lpae-lts-utopic, linux-image-powerpc64-emb-lts-wily, linux-image-generic-lpae-lts-xenial, linux-kvm, linux-image-generic, linux-image-4.4.0-1150-snapdragon, linux-image-powerpc-e500mc-lts-wily, linux-image-lowlatency-lts-xenial, linux-image-4.4.0-203-generic, linux-image-powerpc64-emb, linux-image-powerpc64-emb-lts-utopic, linux-image-powerpc-smp-lts-xenial, linux-image-powerpc-smp-lts-wily, linux-image-generic-lpae, linux-image-4.4.0-1088-kvm, linux-image-snapdragon, linux-image-lowlatency-lts-wily, linux-image-4.4.0-1086-aws, linux-image-powerpc-e500mc-lts-vivid, linux-lts-xenial, linux-image-generic-lpae-lts-vivid, linux-image-aws, linux-image-lowlatency-lts-utopic, linux-image-4.4.0-203-powerpc-e500mc, linux-image-4.4.0-203-powerpc-smp, linux-image-powerpc64-smp-lts-vivid, linux-image-4.4.0-1122-aws, linux-image-kvm, linux-image-4.4.0-1146-raspi2, linux-image-powerpc-e500mc-lts-utopic, linux-image-powerpc-smp-lts-vivid, linux-aws, linux-image-powerpc64-smp-lts-wily, linux-image-powerpc64-smp, linux-image-lowlatency-lts-vivid, linux-image-raspi2, linux-image-powerpc-e500mc-lts-xenial, linux-image-4.4.0-203-generic-lpae, linux-image-virtual-lts-xenial, linux-image-powerpc64-smp-lts-xenial, linux-image-powerpc-smp, linux-image-generic-lpae-lts-wily, linux-raspi2, linux-image-virtual, linux-image-virtual-lts-vivid, linux-image-powerpc64-emb-lts-xenial, linux-image-powerpc-smp-lts-utopic, linux-image-powerpc64-smp-lts-utopic
  • USN-4749-1: linux-image-lowlatency-hwe-16.04-edge, linux-image-oracle-lts-18.04, linux-image-gcp, linux-image-4.15.0-1085-kvm, linux-image-gcp-lts-18.04, linux-snapdragon, linux-gcp-4.15, linux-image-gke, linux-image-4.15.0-136-generic-lpae, linux-dell300x, linux-image-4.15.0-1079-gke, linux-image-4.15.0-1065-oracle, linux-azure-4.15, linux, linux-image-lowlatency, linux-image-azure, linux-image-virtual-hwe-16.04-edge, linux-kvm, linux-image-azure-edge, linux-oracle, linux-image-generic, linux-image-dell300x, linux-image-virtual-hwe-16.04, linux-image-4.15.0-1108-azure, linux-image-4.15.0-1096-snapdragon, linux-image-aws-hwe, linux-image-generic-lpae, linux-image-generic-lpae-hwe-16.04, linux-image-oem, linux-azure, linux-image-snapdragon, linux-image-aws-lts-18.04, linux-image-lowlatency-hwe-16.04, linux-image-4.15.0-136-generic, linux-image-generic-hwe-16.04, linux-aws-hwe, linux-image-4.15.0-1093-gcp, linux-image-4.15.0-136-lowlatency, linux-image-raspi2, linux-image-azure-lts-18.04, linux-image-kvm, linux-gcp, linux-gke-4.15, linux-aws, linux-image-4.15.0-1012-dell300x, linux-image-4.15.0-1094-aws, linux-image-generic-lpae-hwe-16.04-edge, linux-image-oracle, linux-hwe, linux-raspi2, linux-image-4.15.0-1079-raspi2, linux-image-generic-hwe-16.04-edge, linux-image-virtual, linux-image-gke-4.15
  • USN-5130-1: linux-signed-generic-lts-quantal, linux-headers-powerpc-e500mc, linux-image-generic-lpae-lts-trusty, linux-headers-3.13.0-188-powerpc64-smp, linux-source-3.13.0, linux-signed-generic-lts-raring, linux-buildinfo-3.13.0-188-powerpc-e500mc, linux-headers-server, linux-modules-3.13.0-188-generic-lpae, linux, linux-cloud-tools-3.13.0-188, linux-image-lowlatency, linux-source, linux-tools-3.13.0-188-powerpc-smp, linux-cloud-tools-virtual, linux-hwe-generic-trusty, linux-tools-powerpc64-emb, linux-image-powerpc64-emb, linux-tools-3.13.0-188-lowlatency, linux-buildinfo-3.13.0-188-powerpc64-emb, linux-signed-image-generic, linux-image-hwe-virtual-trusty, linux-omap, linux-headers-omap, linux-headers-highbank, linux-headers-generic-lpae-lts-trusty, linux-tools-3.13.0-188-powerpc-e500mc, linux-generic-lts-saucy-eol-upgrade, linux-image-extra-virtual, linux-signed-generic-lts-quantal-eol-upgrade, linux-headers-generic-pae, linux-generic-lpae-lts-saucy, linux-signed-generic, linux-headers-3.13.0-188-lowlatency, linux-image-3.13.0-188-powerpc64-smp, linux-powerpc64-emb, linux-image-generic-pae, linux-powerpc-e500, linux-headers-lowlatency-pae, linux-signed-image-generic-lts-trusty, linux-libc-dev, linux-image-3.13.0-188-powerpc-e500mc, linux-generic-lpae-lts-trusty, linux-highbank, linux-buildinfo-3.13.0-188-powerpc-e500, linux-buildinfo-3.13.0-188-generic-lpae, linux-image-generic-lts-trusty, linux-image-3.13.0-188-generic-lpae, linux-headers-3.13.0-188-powerpc-e500mc, linux-headers-powerpc64-emb, linux-tools-3.13.0-188-powerpc64-smp, linux-headers-lowlatency, linux-tools-powerpc-smp, linux-tools-powerpc-e500mc, linux-image-generic-lts-quantal, linux-powerpc-smp, linux-tools-generic-lts-trusty, linux-tools-generic-lpae-lts-trusty, linux-tools-3.13.0-188-powerpc64-emb, linux-generic, linux-headers-generic-lpae-lts-saucy, linux-hwe-virtual-trusty, linux-headers-virtual, linux-tools-generic-lpae-lts-saucy, linux-image-generic-lpae, linux-image-generic-lpae-lts-saucy, linux-image-3.13.0-188-powerpc-smp, linux-modules-3.13.0-188-powerpc64-emb, linux-modules-extra-3.13.0-188-generic, linux-buildinfo-3.13.0-188-powerpc64-smp, linux-virtual, linux-cloud-tools-generic, linux-tools-common, linux-lowlatency, linux-signed-image-generic-lts-raring, linux-buildinfo-3.13.0-188-lowlatency, linux-signed-generic-lts-trusty, linux-buildinfo-3.13.0-188-powerpc-smp, linux-generic-lpae-lts-saucy-eol-upgrade, linux-tools-lowlatency, linux-buildinfo-3.13.0-188-generic, linux-image-3.13.0-188-lowlatency, linux-image-highbank, linux-headers-generic-lts-quantal, linux-headers-generic, linux-image-virtual, linux-modules-3.13.0-188-powerpc-smp, linux-cloud-tools-3.13.0-188-lowlatency, linux-headers-powerpc-e500, linux-headers-generic-lts-saucy, hv-kvp-daemon-init, linux-doc, linux-crashdump, linux-powerpc64-smp, linux-tools-lts-saucy, linux-tools-generic-lpae, linux-generic-lts-raring-eol-upgrade, linux-tools-3.13.0-188, linux-server, linux-headers-3.13.0-188-powerpc-smp, linux-signed-generic-lts-saucy, linux-image-hwe-generic-trusty, linux-image-powerpc-e500mc, linux-cloud-tools-3.13.0-188-generic, linux-signed-generic-lts-raring-eol-upgrade, linux-tools-virtual, linux-generic-pae, linux-generic-lts-quantal, linux-image-3.13.0-188-generic, linux-generic-lts-raring, linux-tools-powerpc-e500, linux-lowlatency-pae, linux-tools-lts-trusty, linux-headers-generic-lts-raring, linux-image-unsigned-3.13.0-188-lowlatency, linux-modules-3.13.0-188-generic, linux-image-omap, linux-signed-generic-lts-saucy-eol-upgrade, linux-signed-image-generic-lts-quantal, linux-modules-3.13.0-188-powerpc-e500, linux-headers-3.13.0-188-generic, linux-headers-powerpc64-smp, linux-image-powerpc-e500, linux-image-powerpc64-smp, linux-image-lowlatency-pae, linux-powerpc-e500mc, linux-headers-3.13.0-188, linux-image-generic-lts-raring, linux-image-server, linux-headers-generic-lts-trusty, linux-image-unsigned-3.13.0-188-generic, linux-headers-generic-lpae, linux-modules-3.13.0-188-powerpc64-smp, linux-generic-lts-quantal-eol-upgrade, linux-image-generic-lts-saucy, linux-modules-3.13.0-188-lowlatency, linux-headers-3.13.0-188-powerpc64-emb, linux-image-generic, linux-tools-lts-raring, linux-headers-3.13.0-188-generic-lpae, linux-image-3.13.0-188-powerpc64-emb, linux-headers-powerpc-smp, linux-tools-generic, linux-modules-3.13.0-188-powerpc-e500mc, linux-headers-3.13.0-188-powerpc-e500, linux-tools-3.13.0-188-powerpc-e500, linux-tools-3.13.0-188-generic-lpae, linux-tools-lts-quantal, linux-tools-3.13.0-188-generic, linux-generic-lts-saucy, linux-generic-lts-trusty, linux-cloud-tools-common, linux-image-powerpc-smp, linux-tools-powerpc64-smp, linux-signed-image-generic-lts-saucy, linux-tools-generic-lts-saucy, linux-image-3.13.0-188-powerpc-e500, linux-generic-lpae, linux-cloud-tools-lowlatency
  • LSN-0082-1: gcp, generic-5.4, gke, generic-4.4, lowlatency-5.4, gkeop, lowlatency-4.15, lowlatency-4.4, oem, gke-4.15, generic-4.15, gkeop-5.4, gke-5.4
  • USN-4680-1: linux-image-lowlatency-hwe-16.04-edge, linux-image-oracle-lts-18.04, linux-image-gcp, linux-image-gcp-lts-18.04, linux-image-4.15.0-1094-snapdragon, linux-snapdragon, linux-gcp-4.15, linux-image-gke, linux-image-4.15.0-1091-aws, linux-azure-4.15, linux, linux-image-4.15.0-1091-gcp, linux-image-lowlatency, linux-image-4.15.0-129-generic-lpae, linux-image-azure, linux-image-virtual-hwe-16.04-edge, linux-kvm, linux-image-azure-edge, linux-oracle, linux-image-4.15.0-1103-azure, linux-image-4.15.0-1077-raspi2, linux-image-generic, linux-image-virtual-hwe-16.04, linux-image-aws-hwe, linux-image-generic-lpae, linux-image-oem, linux-image-generic-lpae-hwe-16.04, linux-azure, linux-image-4.15.0-129-generic, linux-image-snapdragon, linux-image-aws-lts-18.04, linux-image-lowlatency-hwe-16.04, linux-image-generic-hwe-16.04, linux-image-4.15.0-1077-gke, linux-aws-hwe, linux-image-raspi2, linux-image-azure-lts-18.04, linux-image-kvm, linux-gcp, linux-gke-4.15, linux-aws, linux-image-4.15.0-1082-kvm, linux-image-4.15.0-129-lowlatency, linux-image-generic-lpae-hwe-16.04-edge, linux-image-oracle, linux-hwe, linux-image-4.15.0-1062-oracle, linux-raspi2, linux-image-generic-hwe-16.04-edge, linux-image-virtual, linux-image-gke-4.15
  • USN-4681-1: linux-image-generic-lts-utopic, linux-image-generic-lts-xenial, linux-snapdragon, linux-image-virtual-lts-wily, linux-image-4.4.0-198-lowlatency, linux-image-generic-lts-vivid, linux-image-4.4.0-1147-snapdragon, linux, linux-image-4.4.0-1085-kvm, linux-image-lowlatency, linux-image-4.4.0-1143-raspi2, linux-image-generic-lts-wily, linux-image-powerpc64-emb-lts-vivid, linux-image-powerpc-e500mc, linux-image-virtual-lts-utopic, linux-image-generic-lpae-lts-utopic, linux-image-powerpc64-emb-lts-wily, linux-image-generic-lpae-lts-xenial, linux-kvm, linux-image-4.4.0-1119-aws, linux-image-4.4.0-198-powerpc-smp, linux-image-generic, linux-image-powerpc-e500mc-lts-wily, linux-image-4.4.0-198-powerpc64-emb, linux-image-lowlatency-lts-xenial, linux-image-powerpc64-emb, linux-image-powerpc64-emb-lts-utopic, linux-image-powerpc-smp-lts-xenial, linux-image-powerpc-smp-lts-wily, linux-image-generic-lpae, linux-image-4.4.0-198-generic, linux-image-snapdragon, linux-image-4.4.0-198-powerpc-e500mc, linux-image-lowlatency-lts-wily, linux-image-4.4.0-198-powerpc64-smp, linux-image-powerpc-e500mc-lts-vivid, linux-lts-xenial, linux-image-generic-lpae-lts-vivid, linux-image-aws, linux-image-lowlatency-lts-utopic, linux-image-4.4.0-1083-aws, linux-image-4.4.0-198-generic-lpae, linux-image-raspi2, linux-image-powerpc64-smp-lts-vivid, linux-image-powerpc-e500mc-lts-utopic, linux-image-kvm, linux-image-powerpc-smp-lts-vivid, linux-image-powerpc64-smp-lts-wily, linux-aws, linux-image-powerpc64-smp, linux-image-lowlatency-lts-vivid, linux-image-powerpc-e500mc-lts-xenial, linux-image-virtual-lts-xenial, linux-image-powerpc64-smp-lts-xenial, linux-image-powerpc-smp, linux-image-generic-lpae-lts-wily, linux-raspi2, linux-image-virtual, linux-image-virtual-lts-vivid, linux-image-powerpc64-emb-lts-xenial, linux-image-powerpc-smp-lts-utopic, linux-image-powerpc64-smp-lts-utopic
  • USN-4876-1: linux-image-generic-lts-utopic, linux-image-generic-lts-xenial, linux-snapdragon, linux-image-4.4.0-204-generic, linux-image-virtual-lts-wily, linux-image-4.4.0-1089-kvm, linux-image-generic-lts-vivid, linux-image-4.4.0-1087-aws, linux, linux-image-4.4.0-204-powerpc64-smp, linux-image-lowlatency, linux-image-generic-lts-wily, linux-image-powerpc64-emb-lts-vivid, linux-image-4.4.0-204-lowlatency, linux-image-powerpc-e500mc, linux-image-virtual-lts-utopic, linux-image-generic-lpae-lts-utopic, linux-image-powerpc64-emb-lts-wily, linux-image-generic-lpae-lts-xenial, linux-kvm, linux-image-generic, linux-image-4.4.0-1123-aws, linux-image-powerpc-e500mc-lts-wily, linux-image-lowlatency-lts-xenial, linux-image-powerpc64-emb, linux-image-powerpc64-emb-lts-utopic, linux-image-powerpc-smp-lts-xenial, linux-image-4.4.0-204-generic-lpae, linux-image-powerpc-smp-lts-wily, linux-image-4.4.0-1151-snapdragon, linux-image-generic-lpae, linux-image-powerpc-smp-lts-utopic, linux-image-snapdragon, linux-image-lowlatency-lts-wily, linux-image-4.4.0-204-powerpc-e500mc, linux-image-powerpc-e500mc-lts-vivid, linux-lts-xenial, linux-image-generic-lpae-lts-vivid, linux-image-aws, linux-image-lowlatency-lts-utopic, linux-image-raspi2, linux-image-powerpc64-smp-lts-vivid, linux-image-powerpc-e500mc-lts-utopic, linux-image-kvm, linux-image-powerpc-smp-lts-vivid, linux-image-powerpc64-smp-lts-wily, linux-aws, linux-image-powerpc64-smp, linux-image-lowlatency-lts-vivid, linux-image-4.4.0-1147-raspi2, linux-image-powerpc-e500mc-lts-xenial, linux-image-virtual-lts-xenial, linux-image-powerpc64-smp-lts-xenial, linux-image-powerpc-smp, linux-image-generic-lpae-lts-wily, linux-image-4.4.0-204-powerpc64-emb, linux-raspi2, linux-image-virtual, linux-image-virtual-lts-vivid, linux-image-powerpc64-emb-lts-xenial, linux-image-4.4.0-204-powerpc-smp, linux-image-powerpc64-smp-lts-utopic
  • USN-4912-1: linux-oem-5.6, linux-image-5.6.0-1053-oem, linux-image-oem-20.04
  • USN-4683-1: linux-oem-5.6, linux-image-5.6.0-1039-oem, linux-image-oem-20.04
  • USN-4708-1: linux-image-generic-lts-utopic, linux-image-generic-lts-xenial, linux-image-4.4.0-201-powerpc-e500mc, linux-image-4.4.0-201-lowlatency, linux-image-virtual-lts-wily, linux-image-generic-lts-vivid, linux, linux-image-lowlatency, linux-image-generic-lts-wily, linux-image-powerpc64-emb-lts-vivid, linux-image-powerpc-e500mc, linux-image-virtual-lts-utopic, linux-image-4.4.0-201-generic, linux-image-generic-lpae-lts-utopic, linux-image-generic-lpae-lts-xenial, linux-image-powerpc64-emb-lts-wily, linux-image-generic, linux-image-powerpc-e500mc-lts-wily, linux-image-lowlatency-lts-xenial, linux-image-powerpc64-emb, linux-image-powerpc64-emb-lts-utopic, linux-image-powerpc-smp-lts-xenial, linux-image-powerpc-smp-lts-wily, linux-image-generic-lpae, linux-image-lowlatency-lts-wily, linux-image-powerpc-e500mc-lts-vivid, linux-lts-xenial, linux-image-powerpc64-smp-lts-utopic, linux-image-generic-lpae-lts-vivid, linux-image-4.4.0-201-powerpc-smp, linux-image-lowlatency-lts-utopic, linux-image-powerpc64-smp-lts-vivid, linux-image-powerpc-e500mc-lts-utopic, linux-image-powerpc-smp-lts-vivid, linux-image-powerpc64-smp-lts-wily, linux-image-powerpc64-smp, linux-image-lowlatency-lts-vivid, linux-image-powerpc-e500mc-lts-xenial, linux-image-virtual-lts-xenial, linux-image-4.4.0-201-powerpc64-emb, linux-image-powerpc64-smp-lts-xenial, linux-image-powerpc-smp, linux-image-4.4.0-201-generic-lpae, linux-image-generic-lpae-lts-wily, linux-image-virtual, linux-image-virtual-lts-vivid, linux-image-powerpc64-emb-lts-xenial, linux-image-powerpc-smp-lts-utopic, linux-image-4.4.0-201-powerpc64-smp
  • USN-4709-1: linux-aws, linux-image-4.4.0-1149-snapdragon, linux-image-snapdragon, linux-image-4.4.0-1121-aws, linux-image-4.4.0-1087-kvm, linux-snapdragon, linux-image-aws, linux-raspi2, linux-image-4.4.0-1085-aws, linux-kvm, linux-image-raspi2, linux-image-4.4.0-1145-raspi2, linux-image-kvm

Join the discussion

Need help with your security needs?

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.

Talk to an expert to find out what would work best for you

Further reading