CVE-2023-28466: Null Pointer Dereference

Published Mar 15, 2023
·
Updated

dotlsgetsockopt in net/tls/tlsmain.c in the Linux kernel through 6.2.6 lacks a locksock call, leading to a race condition (with a resultant use-after-free or NULL pointer dereference).

Other sources

Linux Kernel is vulnerable to a denial of service, caused by the lack of a locksock call in dotlsgetsockopt in net/tls/tlsmain.c. By sending a specially crafted request, a local attacker could exploit this vulnerability to cause a race condition, and results in a denial of service condition.

— IBM

Affected Software

157 affected componentsFixes available
IBM Security Verify Governance, Identity Manager software component<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager virtual appliance component<=ISVG 10.0.2
Linux Linux kernel>=4.13<=5.4.240
Linux Linux kernel>=5.5<5.10.177
Linux Linux kernel>=5.11<5.15.105
Linux Linux kernel>=5.16<6.1.20
Linux Linux kernel>=6.2<6.2.7
NetApp Baseboard Management Controller H300s
NetApp Baseboard Management Controller H410c
NetApp Baseboard Management Controller H410s
NetApp Baseboard Management Controller H500s
NetApp Baseboard Management Controller H700s
Debian Debian Linux=10.0
NetApp H300s
NetApp H410c
NetApp H410s
NetApp H500s
NetApp H700s
redhat/kernel<6.3
6.3
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-17.2.13-1
ubuntu/linux-azure*
ubuntu/linux-aws-hwe*
ubuntu/linux-azure*
ubuntu/linux-gcp*
ubuntu/linux-hwe*
ubuntu/linux-hwe-edge*
ubuntu/linux-oracle*
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-aws-5.4<5.4.0-1107.115~18.04.1
5.4.0-1107.115~18.04.1
ubuntu/linux-azure*
ubuntu/linux-azure-4.15*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-5.4<5.4.0-1113.119~18.04.1
5.4.0-1113.119~18.04.1
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-4.15*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gcp-5.4<5.4.0-1110.119~18.04.1
5.4.0-1110.119~18.04.1
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-5.4<5.4.0-156.173~18.04.1
5.4.0-156.173~18.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux-ibm-5.4<5.4.0-1054.59~18.04.1
5.4.0-1054.59~18.04.1
ubuntu/linux-kvm*
ubuntu/linux-oem*
ubuntu/linux-oracle*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-oracle-5.4<5.4.0-1106.115~18.04.1
5.4.0-1106.115~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1091.102~18.04.1
5.4.0-1091.102~18.04.1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-156.173
5.4.0-156.173
ubuntu/linux-aws<5.4.0-1107.115
5.4.0-1107.115
ubuntu/linux-aws-5.15<5.15.0-1041.46~20.04.1
5.15.0-1041.46~20.04.1
ubuntu/linux-azure<5.4.0-1114.120
5.4.0-1114.120
ubuntu/linux-azure-5.15<5.15.0-1045.52~20.04.1
5.15.0-1045.52~20.04.1
ubuntu/linux-bluefield<5.4.0-1068.74
5.4.0-1068.74
ubuntu/linux-gcp<5.4.0-1110.119
5.4.0-1110.119
ubuntu/linux-gcp-5.15<5.15.0-1039.47~20.04.1
5.15.0-1039.47~20.04.1
ubuntu/linux-gke<5.4.0-1105.112
5.4.0-1105.112
ubuntu/linux-gke-5.15<5.15.0-1039.44~20.04.1
5.15.0-1039.44~20.04.1
ubuntu/linux-gkeop<5.4.0-1074.78
5.4.0-1074.78
ubuntu/linux-gkeop-5.15<5.15.0-1025.30~20.04.1
5.15.0-1025.30~20.04.1
ubuntu/linux-hwe-5.15<5.15.0-79.86~20.04.2
5.15.0-79.86~20.04.2
ubuntu/linux-ibm<5.4.0-1054.59
5.4.0-1054.59
ubuntu/linux-ibm-5.15<5.15.0-1036.39~20.04.1
5.15.0-1036.39~20.04.1
ubuntu/linux-intel-iotg-5.15<5.15.0-1037.42~20.04.1
5.15.0-1037.42~20.04.1
ubuntu/linux-iot<5.4.0-1019.20
5.4.0-1019.20
ubuntu/linux-kvm<5.4.0-1096.102
5.4.0-1096.102
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-79.88~20.04.1
5.15.0-79.88~20.04.1
ubuntu/linux-nvidia-tegra-5.15<5.15.0-1016.16~20.04.1
5.15.0-1016.16~20.04.1
ubuntu/linux-oracle<5.4.0-1106.115
5.4.0-1106.115
ubuntu/linux-oracle-5.15<5.15.0-1040.46~20.04.1
5.15.0-1040.46~20.04.1
ubuntu/linux-raspi<5.4.0-1091.102
5.4.0-1091.102
ubuntu/linux-riscv-5.15<5.15.0-1038.42~20.04.2
5.15.0-1038.42~20.04.2
ubuntu/linux-xilinx-zynqmp<5.4.0-1027.31
5.4.0-1027.31
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-azure-fde*
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<5.4.0-1107.115+fips1
5.4.0-1107.115+fips1
ubuntu/linux-azure-fips<5.4.0-1113.119+fips1
5.4.0-1113.119+fips1
ubuntu/linux-fips<5.4.0-1082.91
5.4.0-1082.91
ubuntu/linux-gcp-fips<5.4.0-1110.119+fips1
5.4.0-1110.119+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-79.86
5.15.0-79.86
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1042.47
5.15.0-1042.47
ubuntu/linux-aws-5.19*
ubuntu/linux-azure<5.15.0-1045.52
5.15.0-1045.52
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-fde<5.15.0-1044.51.1
5.15.0-1044.51.1
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-gcp<5.15.0-1039.47
5.15.0-1039.47
ubuntu/linux-gcp-5.19*
ubuntu/linux-gke<5.15.0-1039.44
5.15.0-1039.44
ubuntu/linux-gkeop<5.15.0-1025.30
5.15.0-1025.30
ubuntu/linux-hwe-5.19*
ubuntu/linux-ibm<5.15.0-1035.38
5.15.0-1035.38
ubuntu/linux-intel-iotg<5.15.0-1037.42
5.15.0-1037.42
ubuntu/linux-kvm<5.15.0-1039.44
5.15.0-1039.44
ubuntu/linux-lowlatency<5.15.0-79.88
5.15.0-79.88
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-nvidia<5.15.0-1030.30
5.15.0-1030.30
ubuntu/linux-nvidia-tegra<5.15.0-1016.16
5.15.0-1016.16
ubuntu/linux-nvidia-tegra-igx<5.15.0-1002.2
5.15.0-1002.2
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0<6.0.0-1021.21
6.0.0-1021.21
ubuntu/linux-oem-6.1<6.1.0-1009.9
6.1.0-1009.9
ubuntu/linux-oracle<5.15.0-1040.46
5.15.0-1040.46
ubuntu/linux-raspi<5.15.0-1035.38
5.15.0-1035.38
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-starfive-5.19*
ubuntu/linux-xilinx-zynqmp<5.15.0-1025.29
5.15.0-1025.29
ubuntu/linux-bluefield<5.15.0-1022.24
5.15.0-1022.24
ubuntu/linux-intel-iot-realtime<5.15.0-1036.38
5.15.0-1036.38
ubuntu/linux-realtime<5.15.0-1043.48
5.15.0-1043.48
ubuntu/linux-fips*
ubuntu/linux-raspi-realtime*
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 6.3
  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 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1
  3. Upgrade

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

    Fixed in 5.4.0-1107.115~18.04.1
  4. Upgrade

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

    Fixed in 5.4.0-1113.119~18.04.1
  5. Upgrade

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

    Fixed in 5.4.0-1110.119~18.04.1
  6. Upgrade

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

    Fixed in 5.4.0-156.173~18.04.1
  7. Upgrade

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

    Fixed in 5.4.0-1054.59~18.04.1
  8. Upgrade

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

    Fixed in 5.4.0-1106.115~18.04.1
  9. Upgrade

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

    Fixed in 5.4.0-1091.102~18.04.1
  10. Upgrade

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

    Fixed in 5.4.0-156.173
  11. Upgrade

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

    Fixed in 5.4.0-1107.115
  12. Upgrade

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

    Fixed in 5.15.0-1041.46~20.04.1
  13. Upgrade

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

    Fixed in 5.4.0-1114.120
  14. Upgrade

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

    Fixed in 5.15.0-1045.52~20.04.1
  15. Upgrade

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

    Fixed in 5.4.0-1068.74
  16. Upgrade

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

    Fixed in 5.4.0-1110.119
  17. Upgrade

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

    Fixed in 5.15.0-1039.47~20.04.1
  18. Upgrade

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

    Fixed in 5.4.0-1105.112
  19. Upgrade

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

    Fixed in 5.15.0-1039.44~20.04.1
  20. Upgrade

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

    Fixed in 5.4.0-1074.78
  21. Upgrade

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

    Fixed in 5.15.0-1025.30~20.04.1
  22. Upgrade

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

    Fixed in 5.15.0-79.86~20.04.2
  23. Upgrade

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

    Fixed in 5.4.0-1054.59
  24. Upgrade

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

    Fixed in 5.15.0-1036.39~20.04.1
  25. Upgrade

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

    Fixed in 5.15.0-1037.42~20.04.1
  26. Upgrade

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

    Fixed in 5.4.0-1019.20
  27. Upgrade

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

    Fixed in 5.4.0-1096.102
  28. Upgrade

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

    Fixed in 5.15.0-79.88~20.04.1
  29. Upgrade

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

    Fixed in 5.15.0-1016.16~20.04.1
  30. Upgrade

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

    Fixed in 5.4.0-1106.115
  31. Upgrade

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

    Fixed in 5.15.0-1040.46~20.04.1
  32. Upgrade

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

    Fixed in 5.4.0-1091.102
  33. Upgrade

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

    Fixed in 5.15.0-1038.42~20.04.2
  34. Upgrade

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

    Fixed in 5.4.0-1027.31
  35. Upgrade

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

    Fixed in 5.4.0-1107.115+fips1
  36. Upgrade

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

    Fixed in 5.4.0-1113.119+fips1
  37. Upgrade

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

    Fixed in 5.4.0-1082.91
  38. Upgrade

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

    Fixed in 5.4.0-1110.119+fips1
  39. Upgrade

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

    Fixed in 5.15.0-79.86
  40. Upgrade

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

    Fixed in 5.15.0-1042.47
  41. Upgrade

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

    Fixed in 5.15.0-1045.52
  42. Upgrade

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

    Fixed in 5.15.0-1044.51.1
  43. Upgrade

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

    Fixed in 5.15.0-1039.47
  44. Upgrade

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

    Fixed in 5.15.0-1039.44
  45. Upgrade

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

    Fixed in 5.15.0-1025.30
  46. Upgrade

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

    Fixed in 5.15.0-1035.38
  47. Upgrade

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

    Fixed in 5.15.0-1037.42
  48. Upgrade

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

    Fixed in 5.15.0-1039.44
  49. Upgrade

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

    Fixed in 5.15.0-79.88
  50. Upgrade

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

    Fixed in 5.15.0-1030.30
  51. Upgrade

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

    Fixed in 5.15.0-1016.16
  52. Upgrade

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

    Fixed in 5.15.0-1002.2
  53. Upgrade

    Upgrade ubuntu/linux-oem-6.0 to a version that resolves this vulnerability.

    Fixed in 6.0.0-1021.21
  54. Upgrade

    Upgrade ubuntu/linux-oem-6.1 to a version that resolves this vulnerability.

    Fixed in 6.1.0-1009.9
  55. Upgrade

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

    Fixed in 5.15.0-1040.46
  56. Upgrade

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

    Fixed in 5.15.0-1035.38
  57. Upgrade

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

    Fixed in 5.15.0-1025.29
  58. Upgrade

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

    Fixed in 5.15.0-1022.24
  59. Upgrade

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

    Fixed in 5.15.0-1036.38
  60. Upgrade

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

    Fixed in 5.15.0-1043.48

Event History

Mar 15, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Mar 16, 2023
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
Data Sourced
via OSV·12:15 AM
DescriptionSeverityAffected Software
Event
via OSV·12:15 AM
Data Sourced
via NVD·12:15 AM
RemedyDescriptionSeverityWeaknessAffected Software
Data Sourced
via Red Hat·12:15 PM
DescriptionSeverityAffected 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-2023-28466?

CVE-2023-28466 is classified as a high severity vulnerability due to the risk of race conditions that can lead to use-after-free or NULL pointer dereference issues.

2

How do I fix CVE-2023-28466?

To mitigate CVE-2023-28466, upgrade to Linux kernel version 6.3 or higher.

3

Which software versions are affected by CVE-2023-28466?

CVE-2023-28466 affects various versions of the Linux kernel up to 6.2.6 and specific versions of IBM Security Verify Governance components.

4

Is CVE-2023-28466 present in Debian Linux?

Yes, Debian Linux versions that are part of the vulnerability scope may be affected by CVE-2023-28466.

5

What type of vulnerability is CVE-2023-28466?

CVE-2023-28466 is a race condition vulnerability that occurs in the do_tls_getsockopt function of the Linux kernel.

Company

Resources

Contact

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