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Ubuntu: (Multiple Advisories) (CVE-2021-28972): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2021-28972): Linux kernel vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
03/22/2021
Created
05/14/2021
Added
05/12/2021
Modified
04/13/2022

Description

In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.

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-4-4-0-1099-aws
  • ubuntu-upgrade-linux-image-4-4-0-1100-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1102-aws
  • ubuntu-upgrade-linux-image-4-4-0-1103-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1135-aws
  • ubuntu-upgrade-linux-image-4-4-0-1138-aws
  • ubuntu-upgrade-linux-image-4-4-0-219-generic
  • ubuntu-upgrade-linux-image-4-4-0-219-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-222-generic
  • ubuntu-upgrade-linux-image-4-4-0-222-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

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