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Ubuntu: (Multiple Advisories) (CVE-2021-3492): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2021-3492): Linux kernel vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
04/15/2021
Created
04/20/2021
Added
04/16/2021
Modified
06/01/2021

Description

Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copy_from_user() correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service (kernel memory exhaustion) or gain privileges via executing arbitrary code. AKA ZDI-CAN-13562.

Solution(s)

  • ubuntu-upgrade-linux-image-5-10-0-1022-oem
  • ubuntu-upgrade-linux-image-5-3-0-1039-raspi2
  • ubuntu-upgrade-linux-image-5-3-0-1042-gke
  • ubuntu-upgrade-linux-image-5-3-0-73-generic
  • ubuntu-upgrade-linux-image-5-3-0-73-lowlatency
  • ubuntu-upgrade-linux-image-5-4-0-1014-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1034-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1038-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1042-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1042-gke
  • ubuntu-upgrade-linux-image-5-4-0-1043-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1045-aws
  • ubuntu-upgrade-linux-image-5-4-0-1046-azure
  • ubuntu-upgrade-linux-image-5-4-0-72-generic
  • ubuntu-upgrade-linux-image-5-4-0-72-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-72-lowlatency
  • ubuntu-upgrade-linux-image-5-6-0-1054-oem
  • ubuntu-upgrade-linux-image-5-8-0-1021-raspi
  • ubuntu-upgrade-linux-image-5-8-0-1021-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-8-0-1024-kvm
  • ubuntu-upgrade-linux-image-5-8-0-1026-oracle
  • ubuntu-upgrade-linux-image-5-8-0-1028-gcp
  • ubuntu-upgrade-linux-image-5-8-0-1029-azure
  • ubuntu-upgrade-linux-image-5-8-0-1030-aws
  • ubuntu-upgrade-linux-image-5-8-0-50-generic
  • ubuntu-upgrade-linux-image-5-8-0-50-generic-64k
  • ubuntu-upgrade-linux-image-5-8-0-50-generic-lpae
  • ubuntu-upgrade-linux-image-5-8-0-50-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-gcp
  • 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-5-3
  • ubuntu-upgrade-linux-image-gke-5-4
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-3
  • 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-20-04b
  • 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-raspi2-hwe-18-04
  • 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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