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Ubuntu: (Multiple Advisories) (CVE-2022-39842): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2022-39842): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
09/05/2022
Created
01/10/2023
Added
01/07/2023
Modified
11/08/2023

Description

An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur. NOTE: the original discoverer disputes that the overflow can actually happen.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1060-dell300x
  • ubuntu-upgrade-linux-image-4-15-0-1114-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1127-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1135-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1145-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1145-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-1146-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1150-aws
  • ubuntu-upgrade-linux-image-4-15-0-1161-azure
  • ubuntu-upgrade-linux-image-4-15-0-1162-azure
  • ubuntu-upgrade-linux-image-4-15-0-204-generic
  • ubuntu-upgrade-linux-image-4-15-0-204-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-204-lowlatency
  • ubuntu-upgrade-linux-image-4-15-0-206-generic
  • ubuntu-upgrade-linux-image-4-15-0-206-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-1012-gkeop
  • ubuntu-upgrade-linux-image-5-15-0-1022-ibm
  • ubuntu-upgrade-linux-image-5-15-0-1022-raspi
  • ubuntu-upgrade-linux-image-5-15-0-1022-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-15-0-1024-gke
  • ubuntu-upgrade-linux-image-5-15-0-1025-kvm
  • ubuntu-upgrade-linux-image-5-15-0-1026-gcp
  • ubuntu-upgrade-linux-image-5-15-0-1026-oracle
  • ubuntu-upgrade-linux-image-5-15-0-1027-aws
  • ubuntu-upgrade-linux-image-5-15-0-1027-gke
  • ubuntu-upgrade-linux-image-5-15-0-1030-azure
  • ubuntu-upgrade-linux-image-5-15-0-1030-azure-fde
  • ubuntu-upgrade-linux-image-5-15-0-57-generic
  • ubuntu-upgrade-linux-image-5-15-0-57-generic-64k
  • ubuntu-upgrade-linux-image-5-15-0-57-generic-lpae
  • ubuntu-upgrade-linux-image-5-15-0-57-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-57-lowlatency-64k
  • ubuntu-upgrade-linux-image-5-4-0-1041-ibm
  • ubuntu-upgrade-linux-image-5-4-0-1054-bluefield
  • ubuntu-upgrade-linux-image-5-4-0-1061-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1078-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1083-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1091-gke
  • ubuntu-upgrade-linux-image-5-4-0-1091-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1093-aws
  • ubuntu-upgrade-linux-image-5-4-0-1097-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1100-azure
  • ubuntu-upgrade-linux-image-5-4-0-1100-azure-fde
  • ubuntu-upgrade-linux-image-5-4-0-136-generic
  • ubuntu-upgrade-linux-image-5-4-0-136-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-136-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-lts-18-04
  • ubuntu-upgrade-linux-image-aws-lts-20-04
  • ubuntu-upgrade-linux-image-aws-lts-22-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-fde
  • ubuntu-upgrade-linux-image-azure-lts-18-04
  • ubuntu-upgrade-linux-image-azure-lts-20-04
  • ubuntu-upgrade-linux-image-azure-lts-22-04
  • ubuntu-upgrade-linux-image-bluefield
  • ubuntu-upgrade-linux-image-dell300x
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-18-04
  • ubuntu-upgrade-linux-image-gcp-lts-20-04
  • 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-64k-hwe-22-04
  • 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-hwe-22-04
  • 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-lpae-hwe-22-04
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-15
  • ubuntu-upgrade-linux-image-gke-5-4
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-15
  • ubuntu-upgrade-linux-image-gkeop-5-4
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-ibm-lts-20-04
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-22-04
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-18-04
  • ubuntu-upgrade-linux-image-oracle-lts-20-04
  • 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-hwe-22-04

References

  • https://attackerkb.com/topics/cve-2022-39842
  • CVE - 2022-39842
  • DSA-5257
  • CVE-2022-39842
  • USN-5758-1
  • USN-5790-1
  • USN-5791-1
  • USN-5791-2
  • USN-5791-3
  • USN-5792-1
  • USN-5792-2
  • USN-5793-1
  • USN-5793-2
  • USN-5793-3
  • USN-5793-4
  • USN-5815-1
  • USN-5854-1
  • USN-5861-1
  • USN-5862-1
  • USN-5865-1
  • USN-5877-1
  • USN-5883-1
  • USN-5924-1
  • USN-5975-1
  • USN-6007-1
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