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Ubuntu: (Multiple Advisories) (CVE-2020-28941): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2020-28941): Linux kernel vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
11/19/2020
Created
03/02/2021
Added
02/26/2021
Modified
03/22/2023

Description

An issue was discovered in drivers/accessibility/speakup/spk_ttyio.c in the Linux kernel through 5.9.9. Local attackers on systems with the speakup driver could cause a local denial of service attack, aka CID-d41227544427. This occurs because of an invalid free when the line discipline is used more than once.

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-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-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-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-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

References

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