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Ubuntu: (Multiple Advisories) (CVE-2020-29568): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2020-29568): Linux kernel vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
12/15/2020
Created
03/02/2021
Added
02/26/2021
Modified
07/06/2021

Description

An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1012-dell300x
  • ubuntu-upgrade-linux-image-4-15-0-1065-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1079-gke
  • ubuntu-upgrade-linux-image-4-15-0-1079-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1085-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1093-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1094-aws
  • ubuntu-upgrade-linux-image-4-15-0-1096-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-1108-azure
  • ubuntu-upgrade-linux-image-4-15-0-136-generic
  • ubuntu-upgrade-linux-image-4-15-0-136-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-136-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-1086-aws
  • ubuntu-upgrade-linux-image-4-4-0-1088-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1122-aws
  • ubuntu-upgrade-linux-image-4-4-0-1146-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1150-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-203-generic
  • ubuntu-upgrade-linux-image-4-4-0-203-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-203-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-203-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-203-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-203-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-203-powerpc64-smp
  • ubuntu-upgrade-linux-image-5-4-0-1010-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1029-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1033-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1036-gke
  • ubuntu-upgrade-linux-image-5-4-0-1037-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1038-aws
  • ubuntu-upgrade-linux-image-5-4-0-1038-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1040-azure
  • ubuntu-upgrade-linux-image-5-4-0-66-generic
  • ubuntu-upgrade-linux-image-5-4-0-66-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-66-lowlatency
  • ubuntu-upgrade-linux-image-5-8-0-1016-raspi
  • ubuntu-upgrade-linux-image-5-8-0-1016-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-8-0-1019-kvm
  • ubuntu-upgrade-linux-image-5-8-0-1021-oracle
  • ubuntu-upgrade-linux-image-5-8-0-1023-azure
  • ubuntu-upgrade-linux-image-5-8-0-1023-gcp
  • ubuntu-upgrade-linux-image-5-8-0-1024-aws
  • ubuntu-upgrade-linux-image-5-8-0-44-generic
  • ubuntu-upgrade-linux-image-5-8-0-44-generic-64k
  • ubuntu-upgrade-linux-image-5-8-0-44-generic-lpae
  • ubuntu-upgrade-linux-image-5-8-0-44-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-hwe
  • ubuntu-upgrade-linux-image-aws-lts-18-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-lts-18-04
  • ubuntu-upgrade-linux-image-dell300x
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-18-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lpae-lts-xenial
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-4-15
  • ubuntu-upgrade-linux-image-gke-5-4
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-4
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-20-04
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-18-04
  • ubuntu-upgrade-linux-image-powerpc-e500mc
  • ubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc-smp
  • ubuntu-upgrade-linux-image-powerpc-smp-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc64-emb
  • ubuntu-upgrade-linux-image-powerpc64-emb-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc64-smp
  • ubuntu-upgrade-linux-image-powerpc64-smp-lts-xenial
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-hwe-18-04
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-16-04
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

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