CVE-2023-52340: High severity IBM Security Verify Governance vulnerability

Published Jan 11, 2024
·
Updated

A flaw in the Linux Kernel found. When a router encounters an IPv6 packet too big to transmit to the next-hop, it returns an ICMP6 "Packet Too Big" (PTB) message to the sender. The sender caches this updated Maximum Transmission Unit (MTU) so it knows not to exceed this value when subsequently routing to the same host. In Linux kernels prior to 6.3, garbage collection is run on the IPv6 Destination Route Cache if the number of entries exceeds a threshold when adding the destination to the cache. This garbage collection examines every entry in the cache while holding a lock. In these affected kernel versions, a flood of the IPv6 ICMP6 PTB messages could cause high lock contention and increased CPU usage, leading to a Denial-of-Service.

The fix backports the garbage collection improvements from Linux kernel 6.3 by bringing the IPv6 code closer to the IPv4 code, which does not have this issue.

References: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=af6d10345ca76670c1b7c37799f0d5576ccef277 https://alas.aws.amazon.com/cve/html/CVE-2023-52340.html

Other sources

The IPv6 implementation in the Linux kernel before 6.3 has a net/ipv6/route.c maxsize threshold that can be consumed easily, e.g., leading to a denial of service (network is unreachable errors) when IPv6 packets are sent in a loop via a raw socket.

— MITRE

Affected Software

166 affected componentsFixes available
IBM Security Verify Governance<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Software Stack<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Virtual Appliance<=ISVG 10.0.2
IBM Security Verify Governance Identity Manager Container<=ISVG 10.0.2
debian/linux
5.10.223-15.10.234-16.1.129-16.1.135-16.12.22-16.12.25-1
Linux Linux kernel<6.3
redhat/kernel<6.3
6.3
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-azure*
ubuntu/linux-lts-xenial*
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-aws-hwe*
ubuntu/linux-azure*
ubuntu/linux-gcp*
ubuntu/linux-hwe*
ubuntu/linux-hwe-edge*
ubuntu/linux-kvm*
ubuntu/linux-oracle*
ubuntu/linux-fips*
ubuntu/linux-fips*
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-aws-5.4<5.4.0-1122.132~18.04.1
5.4.0-1122.132~18.04.1
ubuntu/linux-azure*
ubuntu/linux-azure-4.15*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-5.4<5.4.0-1127.134~18.04.1
5.4.0-1127.134~18.04.1
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-4.15*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gcp-5.4<5.4.0-1126.135~18.04.1
5.4.0-1126.135~18.04.1
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-5.4<5.4.0-175.195~18.04.1
5.4.0-175.195~18.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux-ibm-5.4<5.4.0-1069.74~18.04.1
5.4.0-1069.74~18.04.1
ubuntu/linux-kvm*
ubuntu/linux-oem*
ubuntu/linux-oracle*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-oracle-5.4<5.4.0-1121.130~18.04.1
5.4.0-1121.130~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1106.118~18.04.1
5.4.0-1106.118~18.04.1
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<5.4.0-176.196
5.4.0-176.196
ubuntu/linux-aws<5.4.0-1122.132
5.4.0-1122.132
ubuntu/linux-aws-5.15<5.15.0-1057.63~20.04.1
5.15.0-1057.63~20.04.1
ubuntu/linux-azure<5.4.0-1127.134
5.4.0-1127.134
ubuntu/linux-azure-5.15<5.15.0-1060.69~20.04.1
5.15.0-1060.69~20.04.1
ubuntu/linux-bluefield<5.4.0-1082.89
5.4.0-1082.89
ubuntu/linux-gcp<5.4.0-1126.135
5.4.0-1126.135
ubuntu/linux-gcp-5.15<5.15.0-1055.63~20.04.1
5.15.0-1055.63~20.04.1
ubuntu/linux-gkeop<5.4.0-1089.93
5.4.0-1089.93
ubuntu/linux-gkeop-5.15<5.15.0-1040.46~20.04.1
5.15.0-1040.46~20.04.1
ubuntu/linux-hwe-5.15<5.15.0-102.112~20.04.1
5.15.0-102.112~20.04.1
ubuntu/linux-ibm<5.4.0-1069.74
5.4.0-1069.74
ubuntu/linux-ibm-5.15<5.15.0-1050.53~20.04.1
5.15.0-1050.53~20.04.1
ubuntu/linux-intel-iotg-5.15<5.15.0-1052.58~20.04.1
5.15.0-1052.58~20.04.1
ubuntu/linux-iot<5.4.0-1034.35
5.4.0-1034.35
ubuntu/linux-kvm<5.4.0-1110.117
5.4.0-1110.117
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-102.112~20.04.1
5.15.0-102.112~20.04.1
ubuntu/linux-nvidia-tegra-5.15<5.15.0-1025.25~20.04.1
5.15.0-1025.25~20.04.1
ubuntu/linux-oracle<5.4.0-1121.130
5.4.0-1121.130
ubuntu/linux-oracle-5.15<5.15.0-1055.61~20.04.1
5.15.0-1055.61~20.04.1
ubuntu/linux-raspi<5.4.0-1106.118
5.4.0-1106.118
ubuntu/linux-riscv-5.15<5.15.0-1053.57~20.04.1
5.15.0-1053.57~20.04.1
ubuntu/linux-xilinx-zynqmp<5.4.0-1041.45
5.4.0-1041.45
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-gke*
ubuntu/linux-gke-5.15*
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<5.4.0-1122.132+fips1
5.4.0-1122.132+fips1
ubuntu/linux-azure-fips<5.4.0-1127.134+fips1
5.4.0-1127.134+fips1
ubuntu/linux-fips<5.4.0-1096.106
5.4.0-1096.106
ubuntu/linux-gcp-fips<5.4.0-1126.135+fips1
5.4.0-1126.135+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-102.112
5.15.0-102.112
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1057.63
5.15.0-1057.63
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-azure<5.15.0-1060.69
5.15.0-1060.69
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-fde<5.15.0-1060.69.1
5.15.0-1060.69.1
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1055.63
5.15.0-1055.63
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gke<5.15.0-1054.59
5.15.0-1054.59
ubuntu/linux-gkeop<5.15.0-1040.46
5.15.0-1040.46
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-ibm<5.15.0-1050.53
5.15.0-1050.53
ubuntu/linux-intel-iotg<5.15.0-1052.58
5.15.0-1052.58
ubuntu/linux-kvm<5.15.0-1054.59
5.15.0-1054.59
ubuntu/linux-lowlatency<5.15.0-102.112
5.15.0-102.112
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-nvidia<5.15.0-1048.48
5.15.0-1048.48
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-tegra<5.15.0-1025.25
5.15.0-1025.25
ubuntu/linux-nvidia-tegra-igx<5.15.0-1012.12
5.15.0-1012.12
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oracle<5.15.0-1055.61
5.15.0-1055.61
ubuntu/linux-raspi<5.15.0-1050.53
5.15.0-1050.53
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-xilinx-zynqmp<5.15.0-1030.34
5.15.0-1030.34
ubuntu/linux-bluefield<5.15.0-1040.42
5.15.0-1040.42
ubuntu/linux-intel-iot-realtime<5.15.0-1050.52
5.15.0-1050.52
ubuntu/linux-realtime<5.15.0-1058.66
5.15.0-1058.66
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips<5.15.0-1057.63+fips1
5.15.0-1057.63+fips1
ubuntu/linux-azure-fips<5.15.0-1060.69+fips1
5.15.0-1060.69+fips1
ubuntu/linux-fips<5.15.0-102.112+fips1
5.15.0-102.112+fips1
ubuntu/linux-gcp-fips<5.15.0-1055.63+fips2
5.15.0-1055.63+fips2
ubuntu/linux-raspi-realtime*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.22-1Fixed in 6.12.25-1
  2. Upgrade

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

    Fixed in 6.3
  3. Upgrade

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

    Fixed in 5.4.0-1122.132~18.04.1
  4. Upgrade

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

    Fixed in 5.4.0-1127.134~18.04.1
  5. Upgrade

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

    Fixed in 5.4.0-1126.135~18.04.1
  6. Upgrade

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

    Fixed in 5.4.0-175.195~18.04.1
  7. Upgrade

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

    Fixed in 5.4.0-1069.74~18.04.1
  8. Upgrade

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

    Fixed in 5.4.0-1121.130~18.04.1
  9. Upgrade

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

    Fixed in 5.4.0-1106.118~18.04.1
  10. Upgrade

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

    Fixed in 5.4.0-176.196
  11. Upgrade

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

    Fixed in 5.4.0-1122.132
  12. Upgrade

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

    Fixed in 5.15.0-1057.63~20.04.1
  13. Upgrade

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

    Fixed in 5.4.0-1127.134
  14. Upgrade

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

    Fixed in 5.15.0-1060.69~20.04.1
  15. Upgrade

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

    Fixed in 5.4.0-1082.89
  16. Upgrade

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

    Fixed in 5.4.0-1126.135
  17. Upgrade

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

    Fixed in 5.15.0-1055.63~20.04.1
  18. Upgrade

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

    Fixed in 5.4.0-1089.93
  19. Upgrade

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

    Fixed in 5.15.0-1040.46~20.04.1
  20. Upgrade

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

    Fixed in 5.15.0-102.112~20.04.1
  21. Upgrade

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

    Fixed in 5.4.0-1069.74
  22. Upgrade

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

    Fixed in 5.15.0-1050.53~20.04.1
  23. Upgrade

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

    Fixed in 5.15.0-1052.58~20.04.1
  24. Upgrade

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

    Fixed in 5.4.0-1034.35
  25. Upgrade

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

    Fixed in 5.4.0-1110.117
  26. Upgrade

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

    Fixed in 5.15.0-102.112~20.04.1
  27. Upgrade

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

    Fixed in 5.15.0-1025.25~20.04.1
  28. Upgrade

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

    Fixed in 5.4.0-1121.130
  29. Upgrade

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

    Fixed in 5.15.0-1055.61~20.04.1
  30. Upgrade

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

    Fixed in 5.4.0-1106.118
  31. Upgrade

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

    Fixed in 5.15.0-1053.57~20.04.1
  32. Upgrade

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

    Fixed in 5.4.0-1041.45
  33. Upgrade

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

    Fixed in 5.4.0-1122.132+fips1
  34. Upgrade

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

    Fixed in 5.4.0-1127.134+fips1
  35. Upgrade

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

    Fixed in 5.4.0-1096.106
  36. Upgrade

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

    Fixed in 5.4.0-1126.135+fips1
  37. Upgrade

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

    Fixed in 5.15.0-102.112
  38. Upgrade

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

    Fixed in 5.15.0-1057.63
  39. Upgrade

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

    Fixed in 5.15.0-1060.69
  40. Upgrade

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

    Fixed in 5.15.0-1060.69.1
  41. Upgrade

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

    Fixed in 5.15.0-1055.63
  42. Upgrade

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

    Fixed in 5.15.0-1054.59
  43. Upgrade

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

    Fixed in 5.15.0-1040.46
  44. Upgrade

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

    Fixed in 5.15.0-1050.53
  45. Upgrade

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

    Fixed in 5.15.0-1052.58
  46. Upgrade

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

    Fixed in 5.15.0-1054.59
  47. Upgrade

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

    Fixed in 5.15.0-102.112
  48. Upgrade

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

    Fixed in 5.15.0-1048.48
  49. Upgrade

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

    Fixed in 5.15.0-1025.25
  50. Upgrade

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

    Fixed in 5.15.0-1012.12
  51. Upgrade

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

    Fixed in 5.15.0-1055.61
  52. Upgrade

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

    Fixed in 5.15.0-1050.53
  53. Upgrade

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

    Fixed in 5.15.0-1030.34
  54. Upgrade

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

    Fixed in 5.15.0-1040.42
  55. Upgrade

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

    Fixed in 5.15.0-1050.52
  56. Upgrade

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

    Fixed in 5.15.0-1058.66
  57. Upgrade

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

    Fixed in 5.15.0-1057.63+fips1
  58. Upgrade

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

    Fixed in 5.15.0-1060.69+fips1
  59. Upgrade

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

    Fixed in 5.15.0-102.112+fips1
  60. Upgrade

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

    Fixed in 5.15.0-1055.63+fips2
  61. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Fixed in 6.3

Event History

Jan 11, 2024
Data Sourced
via Red Hat·10:16 PM
DescriptionSeverityAffected Software
Jan 29, 2024
CVE Published
via OSV·12:00 AM
Data Sourced
via OSV·12:00 AM
DescriptionSeverityAffected Software
Jul 5, 2024
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·02:15 AM
RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2023-52340?

CVE-2023-52340 is classified as a medium severity vulnerability in the Linux Kernel.

2

How do I fix CVE-2023-52340?

To fix CVE-2023-52340, update your Linux Kernel to version 6.3 or later.

3

Which versions of the Linux Kernel are affected by CVE-2023-52340?

CVE-2023-52340 affects all versions of the Linux Kernel up to 6.3.

4

Is CVE-2023-52340 specific to any Linux distributions?

CVE-2023-52340 impacts various Linux distributions including Red Hat and Debian.

5

Are there any known exploits for CVE-2023-52340?

As of now, there are no known public exploits for CVE-2023-52340.

Company

Resources

Contact

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