CVE-2022-39842: Integer Overflow

Published Sep 5, 2022
·
Updated

DISPUTED An issue was discovered in the Linux kernel before 5.19. In pxa3xxgcuwrite in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of sizet versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copyfromuser(), a heap overflow may occur. NOTE: the original discoverer disputes that the overflow can actually happen.

Other sources

In pxa3xxgcuwrite of pxa3xx-gcu.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

— OSV

Affected Software

141 affected componentsFixes available
Linux Linux kernel<5.19
Linux Linux kernel=5.19-rc1
Linux Linux kernel=5.19-rc2
Linux Linux kernel=5.19-rc3
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Google Android
debian/linux<5.19.6-1
5.19.6-1
debian/linux<5.19.6-1
5.19.6-1
debian/linux<5.19.6-1
5.19.6-1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.116-17.2.15-17.3.3-1
ubuntu/linux-azure<4.15.0-1162.177~14.04.1
4.15.0-1162.177~14.04.1
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-lts-xenial*
ubuntu/linux-aws-hwe<4.15.0-1151.164~16.04.1
4.15.0-1151.164~16.04.1
ubuntu/linux-azure<4.15.0-1162.177~16.04.1
4.15.0-1162.177~16.04.1
ubuntu/linux-gcp<4.15.0-1146.162~16.04.1
4.15.0-1146.162~16.04.1
ubuntu/linux-hwe<4.15.0-206.217~16.04.1
4.15.0-206.217~16.04.1
ubuntu/linux-oracle<4.15.0-1115.126~16.04.1
4.15.0-1115.126~16.04.1
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-hwe-edge*
ubuntu/linux-kvm*
ubuntu/linux-fips*
ubuntu/linux-fips*
ubuntu/linux<4.15.0-204.215
4.15.0-204.215
ubuntu/linux-aws<4.15.0-1150.163
4.15.0-1150.163
ubuntu/linux-aws-5.4<5.4.0-1093.102~18.04.2
5.4.0-1093.102~18.04.2
ubuntu/linux-azure-4.15<4.15.0-1161.176
4.15.0-1161.176
ubuntu/linux-azure-5.4<5.4.0-1100.106~18.04.1
5.4.0-1100.106~18.04.1
ubuntu/linux-dell300x<4.15.0-1060.65
4.15.0-1060.65
ubuntu/linux-gcp-4.15<4.15.0-1145.161
4.15.0-1145.161
ubuntu/linux-gcp-5.4<5.4.0-1097.106~18.04.1
5.4.0-1097.106~18.04.1
ubuntu/linux-hwe-5.4<5.4.0-136.153~18.04.1
5.4.0-136.153~18.04.1
ubuntu/linux-ibm-5.4<5.4.0-1041.46~18.04.1
5.4.0-1041.46~18.04.1
ubuntu/linux-kvm<4.15.0-1135.140
4.15.0-1135.140
ubuntu/linux-oracle<4.15.0-1114.125
4.15.0-1114.125
ubuntu/linux-oracle-5.4<5.4.0-1091.100~18.04.1
5.4.0-1091.100~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1078.89~18.04.1
5.4.0-1078.89~18.04.1
ubuntu/linux-raspi2<4.15.0-1127.135
4.15.0-1127.135
ubuntu/linux-snapdragon<4.15.0-1145.155
4.15.0-1145.155
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-azure*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-edge*
ubuntu/linux-oem*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-aws-fips<4.15.0-2089.95
4.15.0-2089.95
ubuntu/linux-azure-fips<4.15.0-2070.76
4.15.0-2070.76
ubuntu/linux-fips<4.15.0-1107.118
4.15.0-1107.118
ubuntu/linux-gcp-fips<4.15.0-2054.59
4.15.0-2054.59
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-136.153
5.4.0-136.153
ubuntu/linux-aws<5.4.0-1093.101
5.4.0-1093.101
ubuntu/linux-aws-5.15<5.15.0-1027.31~20.04.1
5.15.0-1027.31~20.04.1
ubuntu/linux-azure<5.4.0-1100.106
5.4.0-1100.106
ubuntu/linux-azure-5.15<5.15.0-1030.37~20.04.1
5.15.0-1030.37~20.04.1
ubuntu/linux-bluefield<5.4.0-1054.60
5.4.0-1054.60
ubuntu/linux-gcp<5.4.0-1097.106
5.4.0-1097.106
ubuntu/linux-gcp-5.15<5.15.0-1027.34~20.04.1
5.15.0-1027.34~20.04.1
ubuntu/linux-gke<5.4.0-1091.98
5.4.0-1091.98
ubuntu/linux-gke-5.15<5.15.0-1027.32~20.04.1
5.15.0-1027.32~20.04.1
ubuntu/linux-gkeop<5.4.0-1061.65
5.4.0-1061.65
ubuntu/linux-gkeop-5.15<5.15.0-1012.16~20.04.1
5.15.0-1012.16~20.04.1
ubuntu/linux-hwe-5.15<5.15.0-57.63~20.04.1
5.15.0-57.63~20.04.1
ubuntu/linux-ibm<5.4.0-1041.46
5.4.0-1041.46
ubuntu/linux-intel-iotg-5.15<5.15.0-1023.28~20.04.1
5.15.0-1023.28~20.04.1
ubuntu/linux-iot<5.4.0-1010.12
5.4.0-1010.12
ubuntu/linux-kvm<5.4.0-1083.89
5.4.0-1083.89
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-58.64~20.04.1
5.15.0-58.64~20.04.1
ubuntu/linux-oracle<5.4.0-1091.100
5.4.0-1091.100
ubuntu/linux-oracle-5.15<5.15.0-1027.33~20.04.1
5.15.0-1027.33~20.04.1
ubuntu/linux-raspi<5.4.0-1078.89
5.4.0-1078.89
ubuntu/linux-riscv-5.15<5.15.0-1027.31~20.04.1
5.15.0-1027.31~20.04.1
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.8*
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.8*
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.8*
ubuntu/linux-hwe-5.11*
ubuntu/linux-hwe-5.13*
ubuntu/linux-hwe-5.8*
ubuntu/linux-intel-5.13*
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.8*
ubuntu/linux-aws-fips<5.4.0-1093.101+fips1
5.4.0-1093.101+fips1
ubuntu/linux-azure-fips<5.4.0-1100.106+fips1
5.4.0-1100.106+fips1
ubuntu/linux-fips<5.4.0-1069.78
5.4.0-1069.78
ubuntu/linux-gcp-fips<5.4.0-1097.106+fips1
5.4.0-1097.106+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-57.63
5.15.0-57.63
ubuntu/linux-aws<5.15.0-1027.31
5.15.0-1027.31
ubuntu/linux-azure<5.15.0-1030.37
5.15.0-1030.37
ubuntu/linux-azure-fde<5.15.0-1030.37.1
5.15.0-1030.37.1
ubuntu/linux-gcp<5.15.0-1026.33
5.15.0-1026.33
ubuntu/linux-gke<5.15.0-1024.29
5.15.0-1024.29
ubuntu/linux-gkeop<5.15.0-1012.16
5.15.0-1012.16
ubuntu/linux-ibm<5.15.0-1022.25
5.15.0-1022.25
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1023.28
5.15.0-1023.28
ubuntu/linux-kvm<5.15.0-1025.30
5.15.0-1025.30
ubuntu/linux-lowlatency<5.15.0-57.63
5.15.0-57.63
ubuntu/linux-nvidia<5.15.0-1015.15
5.15.0-1015.15
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oracle<5.15.0-1026.32
5.15.0-1026.32
ubuntu/linux-raspi<5.15.0-1022.24
5.15.0-1022.24
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-realtime<5.15.0-1029.32
5.15.0-1029.32
ubuntu/linux-raspi-realtime*
ubuntu/linux-vmware*
android/:linux_kernel:>=:0<:2023-02-05
:2023-02-05

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 5.19.6-1
  2. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1162.177~14.04.1
  3. Upgrade

    Upgrade ubuntu/linux-aws-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-1151.164~16.04.1
  4. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1162.177~16.04.1
  5. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 4.15.0-1146.162~16.04.1
  6. Upgrade

    Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-206.217~16.04.1
  7. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1115.126~16.04.1
  8. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 4.15.0-204.215
  9. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 4.15.0-1150.163
  10. Upgrade

    Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1093.102~18.04.2
  11. Upgrade

    Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1161.176
  12. Upgrade

    Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1100.106~18.04.1
  13. Upgrade

    Upgrade ubuntu/linux-dell300x to a version that resolves this vulnerability.

    Fixed in 4.15.0-1060.65
  14. Upgrade

    Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1145.161
  15. Upgrade

    Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1097.106~18.04.1
  16. Upgrade

    Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-136.153~18.04.1
  17. Upgrade

    Upgrade ubuntu/linux-ibm-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1041.46~18.04.1
  18. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 4.15.0-1135.140
  19. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1114.125
  20. Upgrade

    Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1091.100~18.04.1
  21. Upgrade

    Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1078.89~18.04.1
  22. Upgrade

    Upgrade ubuntu/linux-raspi2 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1127.135
  23. Upgrade

    Upgrade ubuntu/linux-snapdragon to a version that resolves this vulnerability.

    Fixed in 4.15.0-1145.155
  24. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2089.95
  25. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2070.76
  26. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-1107.118
  27. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2054.59
  28. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.4.0-136.153
  29. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.4.0-1093.101
  30. Upgrade

    Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1027.31~20.04.1
  31. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.4.0-1100.106
  32. Upgrade

    Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1030.37~20.04.1
  33. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 5.4.0-1054.60
  34. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1097.106
  35. Upgrade

    Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1027.34~20.04.1
  36. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 5.4.0-1091.98
  37. Upgrade

    Upgrade ubuntu/linux-gke-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1027.32~20.04.1
  38. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 5.4.0-1061.65
  39. Upgrade

    Upgrade ubuntu/linux-gkeop-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1012.16~20.04.1
  40. Upgrade

    Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-57.63~20.04.1
  41. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1041.46
  42. Upgrade

    Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1023.28~20.04.1
  43. Upgrade

    Upgrade ubuntu/linux-iot to a version that resolves this vulnerability.

    Fixed in 5.4.0-1010.12
  44. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1083.89
  45. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-58.64~20.04.1
  46. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.4.0-1091.100
  47. Upgrade

    Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1027.33~20.04.1
  48. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.4.0-1078.89
  49. Upgrade

    Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1027.31~20.04.1
  50. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1093.101+fips1
  51. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1100.106+fips1
  52. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1069.78
  53. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1097.106+fips1
  54. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.15.0-57.63
  55. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.15.0-1027.31
  56. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.15.0-1030.37
  57. Upgrade

    Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.

    Fixed in 5.15.0-1030.37.1
  58. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.15.0-1026.33
  59. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 5.15.0-1024.29
  60. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 5.15.0-1012.16
  61. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1022.25
  62. Upgrade

    Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.

    Fixed in 5.15.0-1023.28
  63. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1025.30
  64. Upgrade

    Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.15.0-57.63
  65. Upgrade

    Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.

    Fixed in 5.15.0-1015.15
  66. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.15.0-1026.32
  67. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.15.0-1022.24
  68. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1029.32
  69. Upgrade

    Upgrade android/:linux_kernel: to a version that resolves this vulnerability.

    Fixed in :2023-02-05
  70. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.3-1
  71. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Fixed in 5.19

Event History

Sep 5, 2022
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via OSV·07:15 AM
DescriptionSeverityAffected Software
Disputed
07:15 AM
Feb 1, 2023
Advisory Published
via OSV·12:00 AM
Feb 6, 2023
Data Sourced
via Android·12:00 AM
SeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2022-39842?

CVE-2022-39842 is classified as a medium severity vulnerability due to the potential for integer overflow.

2

How do I fix CVE-2022-39842?

To mitigate CVE-2022-39842, upgrade to a kernel version that is 5.19 or higher, or apply the relevant patches provided by your distribution.

3

Which software versions are affected by CVE-2022-39842?

CVE-2022-39842 affects Linux kernel versions before 5.19, including specific release candidates and certain Debian Linux distributions.

4

What type of vulnerability is CVE-2022-39842?

CVE-2022-39842 is an integer overflow vulnerability in the pxa3xx_gcu_write function of the Linux kernel.

5

Is there a known exploit for CVE-2022-39842?

As of now, there are no publicly available exploits reported for CVE-2022-39842, but its nature could allow for potential future exploitation.

Company

Resources

Contact

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