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Ubuntu: (Multiple Advisories) (CVE-2021-28964): Linux kernel (OEM) vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2021-28964): Linux kernel (OEM) vulnerabilities

Severity
2
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:P)
Published
03/22/2021
Created
05/14/2021
Added
05/12/2021
Modified
03/22/2023

Description

A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1072-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1086-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1092-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1100-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1103-aws
  • ubuntu-upgrade-linux-image-4-15-0-1103-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-1115-azure
  • ubuntu-upgrade-linux-image-4-15-0-144-generic
  • ubuntu-upgrade-linux-image-4-15-0-144-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-144-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-1103-aws
  • ubuntu-upgrade-linux-image-4-4-0-1104-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1139-aws
  • ubuntu-upgrade-linux-image-4-4-0-223-generic
  • ubuntu-upgrade-linux-image-4-4-0-223-lowlatency
  • ubuntu-upgrade-linux-image-5-10-0-1026-oem
  • ubuntu-upgrade-linux-image-5-4-0-1016-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1036-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1040-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1044-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1044-gke
  • ubuntu-upgrade-linux-image-5-4-0-1046-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1048-azure
  • ubuntu-upgrade-linux-image-5-4-0-1049-aws
  • ubuntu-upgrade-linux-image-5-4-0-74-generic
  • ubuntu-upgrade-linux-image-5-4-0-74-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-74-lowlatency
  • ubuntu-upgrade-linux-image-5-8-0-1026-raspi
  • ubuntu-upgrade-linux-image-5-8-0-1026-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-8-0-1028-kvm
  • ubuntu-upgrade-linux-image-5-8-0-1031-oracle
  • ubuntu-upgrade-linux-image-5-8-0-1032-gcp
  • ubuntu-upgrade-linux-image-5-8-0-1033-azure
  • ubuntu-upgrade-linux-image-5-8-0-1035-aws
  • ubuntu-upgrade-linux-image-5-8-0-55-generic
  • ubuntu-upgrade-linux-image-5-8-0-55-generic-64k
  • ubuntu-upgrade-linux-image-5-8-0-55-generic-lpae
  • ubuntu-upgrade-linux-image-5-8-0-55-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-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-18-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • 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-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-20-04b
  • 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
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

References

  • https://attackerkb.com/topics/cve-2021-28964
  • CVE - 2021-28964
  • CVE-2021-28964
  • USN-4525-1
  • USN-4526-1
  • USN-4948-1
  • USN-4979-1
  • USN-4982-1
  • USN-4984-1
  • USN-4997-1
  • USN-4997-2
  • USN-4999-1
  • USN-5000-1
  • USN-5000-2
  • USN-5001-1
  • USN-5092-1
  • USN-5092-2
  • USN-5096-1
  • USN-5113-1
  • USN-5114-1
  • USN-5115-1
  • USN-5116-1
  • USN-5116-2
  • USN-5163-1
  • USN-5164-1
  • USN-5165-1
  • USN-5207-1
  • USN-5265-1
  • USN-5266-1
  • USN-5267-1
  • USN-5267-3
  • USN-5268-1
  • USN-5278-1
  • USN-5294-1
  • USN-5294-2
  • USN-5295-1
  • USN-5295-2
  • USN-5297-1
  • USN-5298-1
  • USN-5302-1
  • USN-5338-1
  • USN-5339-1
  • USN-5361-1
  • USN-5362-1
  • USN-5377-1
  • USN-5383-1
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