CVE-2022-42703: Use After Free

Published Oct 9, 2022
·
Updated

In multiple functions of rmap.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.

Other sources

mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anonvma double reuse.

— Ubuntu

Affected Software

137 affected componentsFixes available
redhat/linux kernel<6.0
6.0
Linux Linux kernel<5.19.7
Google Android
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.12-17.2.15-1
debian/linux<5.19.11-1
5.19.11-1
debian/linux<5.19.11-1
5.19.11-1
debian/linux<5.19.11-1
5.19.11-1
ubuntu/linux<3.13.0-192.243
3.13.0-192.243
ubuntu/linux-aws<4.4.0-1114.120
4.4.0-1114.120
ubuntu/linux-azure<4.15.0-1157.172~14.04.2
4.15.0-1157.172~14.04.2
ubuntu/linux-lts-xenial<4.4.0-235.269~14.04.1
4.4.0-235.269~14.04.1
ubuntu/linux<4.4.0-235.269
4.4.0-235.269
ubuntu/linux-aws<4.4.0-1152.167
4.4.0-1152.167
ubuntu/linux-aws-hwe<4.15.0-1146.158~16.04.2
4.15.0-1146.158~16.04.2
ubuntu/linux-azure<4.15.0-1159.174~16.04.1
4.15.0-1159.174~16.04.1
ubuntu/linux-gcp<4.15.0-1141.157~16.04.2
4.15.0-1141.157~16.04.2
ubuntu/linux-hwe<4.15.0-200.211~16.04.2
4.15.0-200.211~16.04.2
ubuntu/linux-kvm<4.4.0-1115.125
4.4.0-1115.125
ubuntu/linux-oracle<4.15.0-1111.122~16.04.2
4.15.0-1111.122~16.04.2
ubuntu/linux-hwe-edge*
ubuntu/linux-fips<4.4.0-1084.91
4.4.0-1084.91
ubuntu/linux-fips*
ubuntu/linux<4.15.0-200.211
4.15.0-200.211
ubuntu/linux-aws<4.15.0-1146.158
4.15.0-1146.158
ubuntu/linux-aws-5.4<5.4.0-1089.97~18.04.1
5.4.0-1089.97~18.04.1
ubuntu/linux-azure-4.15<4.15.0-1157.172
4.15.0-1157.172
ubuntu/linux-azure-5.4<5.4.0-1095.101~18.04.1
5.4.0-1095.101~18.04.1
ubuntu/linux-dell300x<4.15.0-1057.62
4.15.0-1057.62
ubuntu/linux-gcp-4.15<4.15.0-1141.157
4.15.0-1141.157
ubuntu/linux-gcp-5.4<5.4.0-1093.102~18.04.1
5.4.0-1093.102~18.04.1
ubuntu/linux-hwe-5.4<5.4.0-132.148~18.04.1
5.4.0-132.148~18.04.1
ubuntu/linux-ibm-5.4<5.4.0-1037.42~18.04.1
5.4.0-1037.42~18.04.1
ubuntu/linux-kvm<4.15.0-1132.137
4.15.0-1132.137
ubuntu/linux-oracle<4.15.0-1111.122
4.15.0-1111.122
ubuntu/linux-oracle-5.4<5.4.0-1087.96~18.04.1
5.4.0-1087.96~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1074.85~18.04.1
5.4.0-1074.85~18.04.1
ubuntu/linux-raspi2<4.15.0-1124.132
4.15.0-1124.132
ubuntu/linux-snapdragon<4.15.0-1142.152
4.15.0-1142.152
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<4.15.0-2085.91
4.15.0-2085.91
ubuntu/linux-azure-fips<4.15.0-2066.72
4.15.0-2066.72
ubuntu/linux-fips<4.15.0-1103.114
4.15.0-1103.114
ubuntu/linux-gcp-fips<4.15.0-2050.55
4.15.0-2050.55
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-132.148
5.4.0-132.148
ubuntu/linux-aws<5.4.0-1089.97
5.4.0-1089.97
ubuntu/linux-aws-5.15<5.15.0-1026.30~20.04.2
5.15.0-1026.30~20.04.2
ubuntu/linux-azure<5.4.0-1095.101
5.4.0-1095.101
ubuntu/linux-azure-5.15<5.15.0-1029.36~20.04.1
5.15.0-1029.36~20.04.1
ubuntu/linux-bluefield<5.4.0-1050.56
5.4.0-1050.56
ubuntu/linux-gcp<5.4.0-1093.102
5.4.0-1093.102
ubuntu/linux-gcp-5.15<5.15.0-1025.32~20.04.2
5.15.0-1025.32~20.04.2
ubuntu/linux-gke<5.4.0-1087.94
5.4.0-1087.94
ubuntu/linux-gke-5.15<5.15.0-1023.28~20.04.2
5.15.0-1023.28~20.04.2
ubuntu/linux-gkeop<5.4.0-1057.61
5.4.0-1057.61
ubuntu/linux-gkeop-5.15<5.15.0-1011.15~20.04.2
5.15.0-1011.15~20.04.2
ubuntu/linux-hwe-5.15<5.15.0-56.62~20.04.1
5.15.0-56.62~20.04.1
ubuntu/linux-ibm<5.4.0-1037.42
5.4.0-1037.42
ubuntu/linux-intel-iotg-5.15<5.15.0-1021.26~20.04.1
5.15.0-1021.26~20.04.1
ubuntu/linux-iot<5.4.0-1006.8
5.4.0-1006.8
ubuntu/linux-kvm<5.4.0-1079.85
5.4.0-1079.85
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-56.62~20.04.1
5.15.0-56.62~20.04.1
ubuntu/linux-oem-5.14<5.14.0-1055.62
5.14.0-1055.62
ubuntu/linux-oracle<5.4.0-1087.96
5.4.0-1087.96
ubuntu/linux-oracle-5.15<5.15.0-1025.31~20.04.2
5.15.0-1025.31~20.04.2
ubuntu/linux-raspi<5.4.0-1074.85
5.4.0-1074.85
ubuntu/linux-riscv-5.15<5.15.0-1026.30~20.04.2
5.15.0-1026.30~20.04.2
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<5.4.0-1089.97+fips1
5.4.0-1089.97+fips1
ubuntu/linux-azure-fips<5.4.0-1095.101+fips1
5.4.0-1095.101+fips1
ubuntu/linux-fips<5.4.0-1065.74
5.4.0-1065.74
ubuntu/linux-gcp-fips<5.4.0-1093.102+fips1
5.4.0-1093.102+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-56.62
5.15.0-56.62
ubuntu/linux-aws<5.15.0-1026.30
5.15.0-1026.30
ubuntu/linux-azure<5.15.0-1029.36
5.15.0-1029.36
ubuntu/linux-azure-fde<5.15.0-1029.36.1
5.15.0-1029.36.1
ubuntu/linux-gcp<5.15.0-1025.32
5.15.0-1025.32
ubuntu/linux-gke<5.15.0-1023.28
5.15.0-1023.28
ubuntu/linux-gkeop<5.15.0-1011.15
5.15.0-1011.15
ubuntu/linux-ibm<5.15.0-1021.24
5.15.0-1021.24
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1021.26
5.15.0-1021.26
ubuntu/linux-kvm<5.15.0-1024.29
5.15.0-1024.29
ubuntu/linux-lowlatency<5.15.0-56.62
5.15.0-56.62
ubuntu/linux-nvidia<5.15.0-1015.15
5.15.0-1015.15
ubuntu/linux-oem-5.17<5.17.0-1024.25
5.17.0-1024.25
ubuntu/linux-oracle<5.15.0-1025.31
5.15.0-1025.31
ubuntu/linux-raspi<5.15.0-1021.23
5.15.0-1021.23
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-realtime<5.15.0-1028.31
5.15.0-1028.31
ubuntu/linux-raspi-realtime*
ubuntu/linux-vmware*
android/:linux_kernel:>=:0<:2023-07-05
:2023-07-05

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/Linux kernel to a version that resolves this vulnerability.

    Fixed in 6.0
  2. 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 6.12.115-2Fixed in 7.2.12-1Fixed in 7.2.15-1
  3. Upgrade

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

    Fixed in 5.19.11-1
  4. Upgrade

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

    Fixed in 3.13.0-192.243
  5. Upgrade

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

    Fixed in 4.4.0-1114.120
  6. Upgrade

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

    Fixed in 4.15.0-1157.172~14.04.2
  7. Upgrade

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

    Fixed in 4.4.0-235.269~14.04.1
  8. Upgrade

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

    Fixed in 4.4.0-235.269
  9. Upgrade

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

    Fixed in 4.4.0-1152.167
  10. Upgrade

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

    Fixed in 4.15.0-1146.158~16.04.2
  11. Upgrade

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

    Fixed in 4.15.0-1159.174~16.04.1
  12. Upgrade

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

    Fixed in 4.15.0-1141.157~16.04.2
  13. Upgrade

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

    Fixed in 4.15.0-200.211~16.04.2
  14. Upgrade

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

    Fixed in 4.4.0-1115.125
  15. Upgrade

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

    Fixed in 4.15.0-1111.122~16.04.2
  16. Upgrade

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

    Fixed in 4.4.0-1084.91
  17. Upgrade

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

    Fixed in 4.15.0-200.211
  18. Upgrade

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

    Fixed in 4.15.0-1146.158
  19. Upgrade

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

    Fixed in 5.4.0-1089.97~18.04.1
  20. Upgrade

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

    Fixed in 4.15.0-1157.172
  21. Upgrade

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

    Fixed in 5.4.0-1095.101~18.04.1
  22. Upgrade

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

    Fixed in 4.15.0-1057.62
  23. Upgrade

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

    Fixed in 4.15.0-1141.157
  24. Upgrade

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

    Fixed in 5.4.0-1093.102~18.04.1
  25. Upgrade

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

    Fixed in 5.4.0-132.148~18.04.1
  26. Upgrade

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

    Fixed in 5.4.0-1037.42~18.04.1
  27. Upgrade

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

    Fixed in 4.15.0-1132.137
  28. Upgrade

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

    Fixed in 4.15.0-1111.122
  29. Upgrade

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

    Fixed in 5.4.0-1087.96~18.04.1
  30. Upgrade

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

    Fixed in 5.4.0-1074.85~18.04.1
  31. Upgrade

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

    Fixed in 4.15.0-1124.132
  32. Upgrade

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

    Fixed in 4.15.0-1142.152
  33. Upgrade

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

    Fixed in 4.15.0-2085.91
  34. Upgrade

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

    Fixed in 4.15.0-2066.72
  35. Upgrade

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

    Fixed in 4.15.0-1103.114
  36. Upgrade

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

    Fixed in 4.15.0-2050.55
  37. Upgrade

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

    Fixed in 5.4.0-132.148
  38. Upgrade

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

    Fixed in 5.4.0-1089.97
  39. Upgrade

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

    Fixed in 5.15.0-1026.30~20.04.2
  40. Upgrade

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

    Fixed in 5.4.0-1095.101
  41. Upgrade

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

    Fixed in 5.15.0-1029.36~20.04.1
  42. Upgrade

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

    Fixed in 5.4.0-1050.56
  43. Upgrade

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

    Fixed in 5.4.0-1093.102
  44. Upgrade

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

    Fixed in 5.15.0-1025.32~20.04.2
  45. Upgrade

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

    Fixed in 5.4.0-1087.94
  46. Upgrade

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

    Fixed in 5.15.0-1023.28~20.04.2
  47. Upgrade

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

    Fixed in 5.4.0-1057.61
  48. Upgrade

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

    Fixed in 5.15.0-1011.15~20.04.2
  49. Upgrade

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

    Fixed in 5.15.0-56.62~20.04.1
  50. Upgrade

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

    Fixed in 5.4.0-1037.42
  51. Upgrade

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

    Fixed in 5.15.0-1021.26~20.04.1
  52. Upgrade

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

    Fixed in 5.4.0-1006.8
  53. Upgrade

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

    Fixed in 5.4.0-1079.85
  54. Upgrade

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

    Fixed in 5.15.0-56.62~20.04.1
  55. Upgrade

    Upgrade ubuntu/linux-oem-5.14 to a version that resolves this vulnerability.

    Fixed in 5.14.0-1055.62
  56. Upgrade

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

    Fixed in 5.4.0-1087.96
  57. Upgrade

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

    Fixed in 5.15.0-1025.31~20.04.2
  58. Upgrade

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

    Fixed in 5.4.0-1074.85
  59. Upgrade

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

    Fixed in 5.15.0-1026.30~20.04.2
  60. Upgrade

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

    Fixed in 5.4.0-1089.97+fips1
  61. Upgrade

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

    Fixed in 5.4.0-1095.101+fips1
  62. Upgrade

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

    Fixed in 5.4.0-1065.74
  63. Upgrade

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

    Fixed in 5.4.0-1093.102+fips1
  64. Upgrade

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

    Fixed in 5.15.0-56.62
  65. Upgrade

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

    Fixed in 5.15.0-1026.30
  66. Upgrade

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

    Fixed in 5.15.0-1029.36
  67. Upgrade

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

    Fixed in 5.15.0-1029.36.1
  68. Upgrade

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

    Fixed in 5.15.0-1025.32
  69. Upgrade

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

    Fixed in 5.15.0-1023.28
  70. Upgrade

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

    Fixed in 5.15.0-1011.15
  71. Upgrade

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

    Fixed in 5.15.0-1021.24
  72. Upgrade

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

    Fixed in 5.15.0-1021.26
  73. Upgrade

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

    Fixed in 5.15.0-1024.29
  74. Upgrade

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

    Fixed in 5.15.0-56.62
  75. Upgrade

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

    Fixed in 5.15.0-1015.15
  76. Upgrade

    Upgrade ubuntu/linux-oem-5.17 to a version that resolves this vulnerability.

    Fixed in 5.17.0-1024.25
  77. Upgrade

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

    Fixed in 5.15.0-1025.31
  78. Upgrade

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

    Fixed in 5.15.0-1021.23
  79. Upgrade

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

    Fixed in 5.15.0-1028.31
  80. Upgrade

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

    Fixed in :2023-07-05

Event History

Oct 9, 2022
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
Data Sourced
via OSV·11:15 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·11:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jul 1, 2023
Advisory Published
via OSV·12:00 AM
Jul 2, 2023
Exploit Published
via GitHub·10:58 AM
Jul 5, 2023
Data Sourced
via Android·12:00 AM
SeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2022-42703?

CVE-2022-42703 is classified as a high-severity vulnerability due to the potential for exploitation via use-after-free conditions.

2

How do I fix CVE-2022-42703?

To fix CVE-2022-42703, update your Linux kernel to version 5.19.7 or later.

3

Which versions of the Linux kernel are affected by CVE-2022-42703?

CVE-2022-42703 affects Linux kernel versions prior to 5.19.7.

4

Is CVE-2022-42703 related to any specific operating systems?

This vulnerability impacts the Linux kernel and products based on it, including some versions of Android.

5

What type of vulnerability is CVE-2022-42703?

CVE-2022-42703 is a use-after-free vulnerability, which can lead to memory corruption and potential system compromise.

Company

Resources

Contact

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