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Ubuntu: (Multiple Advisories) (CVE-2021-20239): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2021-20239): Linux kernel vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
03/16/2021
Created
03/18/2021
Added
03/17/2021
Modified
06/09/2021

Description

A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality.

Solution(s)

  • ubuntu-upgrade-linux-image-5-4-0-1011-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1030-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1034-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1037-gke
  • ubuntu-upgrade-linux-image-5-4-0-1038-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1039-aws
  • ubuntu-upgrade-linux-image-5-4-0-1039-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1041-azure
  • ubuntu-upgrade-linux-image-5-4-0-67-generic
  • ubuntu-upgrade-linux-image-5-4-0-67-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-67-lowlatency
  • ubuntu-upgrade-linux-image-5-8-0-1020-raspi
  • ubuntu-upgrade-linux-image-5-8-0-1020-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-8-0-1023-kvm
  • ubuntu-upgrade-linux-image-5-8-0-1025-oracle
  • ubuntu-upgrade-linux-image-5-8-0-1027-azure
  • ubuntu-upgrade-linux-image-5-8-0-1027-gcp
  • ubuntu-upgrade-linux-image-5-8-0-1028-aws
  • ubuntu-upgrade-linux-image-5-8-0-49-generic
  • ubuntu-upgrade-linux-image-5-8-0-49-generic-64k
  • ubuntu-upgrade-linux-image-5-8-0-49-generic-lpae
  • ubuntu-upgrade-linux-image-5-8-0-49-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-edge
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-edge
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-edge
  • 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-18-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-gke
  • 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-18-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • 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-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-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04

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