USN-5804-1: Linux kernel vulnerabilities

Published Jan 13, 2023
·
Updated

It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-43945) Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42896) It was discovered that the Xen netback driver in the Linux kernel did not properly handle packets structured in certain ways. An attacker in a guest VM could possibly use this to cause a denial of service (host NIC availability). (CVE-2022-3643) It was discovered that an integer overflow vulnerability existed in the Bluetooth subsystem in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2022-45934)

Affected Software

97 affected componentsFixes available
Ubuntu Linux kernel
All of the following
ubuntu/linux-image-5.4.0-1094-aws<5.4.0-1094.102
5.4.0-1094.102
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-virtual<5.4.0.137.135
5.4.0.137.135
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-137-generic<5.4.0-137.154
5.4.0-137.154
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic<5.4.0.137.135
5.4.0.137.135
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oem<5.4.0.137.135
5.4.0.137.135
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-137-lowlatency<5.4.0-137.154
5.4.0-137.154
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1098-gcp<5.4.0-1098.107
5.4.0-1098.107
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1042-ibm<5.4.0-1042.47
5.4.0-1042.47
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-ibm<5.4.0.1042.68
5.4.0.1042.68
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oem-osp1<5.4.0.137.135
5.4.0.137.135
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gcp-lts-20.04<5.4.0.1098.100
5.4.0.1098.100
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-ibm-lts-20.04<5.4.0.1042.68
5.4.0.1042.68
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-aws-lts-20.04<5.4.0.1094.91
5.4.0.1094.91
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-lpae<5.4.0.137.135
5.4.0.137.135
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oracle-lts-20.04<5.4.0.1092.85
5.4.0.1092.85
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-137-generic-lpae<5.4.0-137.154
5.4.0-137.154
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1092-oracle<5.4.0-1092.101
5.4.0-1092.101
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-kvm<5.4.0.1084.78
5.4.0.1084.78
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1084-kvm<5.4.0-1084.90
5.4.0-1084.90
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-lowlatency<5.4.0.137.135
5.4.0.137.135
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-virtual<4.15.0.202.185
4.15.0.202.185
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-generic<4.15.0.202.185
4.15.0.202.185
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-1098-gcp<5.4.0-1098.107~18.04.1
5.4.0-1098.107~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-4.15.0-1159-azure<4.15.0-1159.174
4.15.0-1159.174
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-4.15.0-202-generic<4.15.0-202.213
4.15.0-202.213
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-azure-lts-18.04<4.15.0.1159.127
4.15.0.1159.127
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gcp<5.4.0.1098.74
5.4.0.1098.74
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-4.15.0-202-generic-lpae<4.15.0-202.213
4.15.0-202.213
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oracle<5.4.0.1092.101~18.04.66
5.4.0.1092.101~18.04.66
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-1092-oracle<5.4.0-1092.101~18.04.1
5.4.0-1092.101~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-4.15.0-1134-kvm<4.15.0-1134.139
4.15.0-1134.139
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-kvm<4.15.0.1134.125
4.15.0.1134.125
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-generic-lpae<4.15.0.202.185
4.15.0.202.185
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-4.15.0-202-lowlatency<4.15.0-202.213
4.15.0-202.213
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-lowlatency<4.15.0.202.185
4.15.0.202.185
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-lowlatency-hwe-16.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-4.15.0-1143-gcp<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-oem<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-4.15.0-1148-aws-hwe<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-4.15.0-202-generic<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-gke<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-gcp<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-aws-hwe<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-generic-hwe-16.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-virtual-hwe-16.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-4.15.0-202-lowlatency<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=16.04
All of the following
ubuntu/linux-image-4.15.0-1159-azure<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-azure<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=14.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1094-aws to a version that resolves this vulnerability.

    Fixed in 5.4.0-1094.102
  2. Upgrade

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

    Fixed in 5.4.0.137.135
  3. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-137-generic to a version that resolves this vulnerability.

    Fixed in 5.4.0-137.154
  4. Upgrade

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

    Fixed in 5.4.0.137.135
  5. Upgrade

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

    Fixed in 5.4.0.137.135
  6. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-137-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.4.0-137.154
  7. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1098-gcp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1098.107
  8. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1042-ibm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1042.47
  9. Upgrade

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

    Fixed in 5.4.0.1042.68
  10. Upgrade

    Upgrade ubuntu/linux-image-oem-osp1 to a version that resolves this vulnerability.

    Fixed in 5.4.0.137.135
  11. Upgrade

    Upgrade ubuntu/linux-image-gcp-lts-20.04 to a version that resolves this vulnerability.

    Fixed in 5.4.0.1098.100
  12. Upgrade

    Upgrade ubuntu/linux-image-ibm-lts-20.04 to a version that resolves this vulnerability.

    Fixed in 5.4.0.1042.68
  13. Upgrade

    Upgrade ubuntu/linux-image-aws-lts-20.04 to a version that resolves this vulnerability.

    Fixed in 5.4.0.1094.91
  14. Upgrade

    Upgrade ubuntu/linux-image-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.4.0.137.135
  15. Upgrade

    Upgrade ubuntu/linux-image-oracle-lts-20.04 to a version that resolves this vulnerability.

    Fixed in 5.4.0.1092.85
  16. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-137-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.4.0-137.154
  17. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1092-oracle to a version that resolves this vulnerability.

    Fixed in 5.4.0-1092.101
  18. Upgrade

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

    Fixed in 5.4.0.1084.78
  19. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1084-kvm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1084.90
  20. Upgrade

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

    Fixed in 5.4.0.137.135
  21. Upgrade

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

    Fixed in 4.15.0.202.185
  22. Upgrade

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

    Fixed in 4.15.0.202.185
  23. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1098-gcp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1098.107~18.04.1
  24. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-1159-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1159.174
  25. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-202-generic to a version that resolves this vulnerability.

    Fixed in 4.15.0-202.213
  26. Upgrade

    Upgrade ubuntu/linux-image-azure-lts-18.04 to a version that resolves this vulnerability.

    Fixed in 4.15.0.1159.127
  27. Upgrade

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

    Fixed in 5.4.0.1098.74
  28. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-202-generic-lpae to a version that resolves this vulnerability.

    Fixed in 4.15.0-202.213
  29. Upgrade

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

    Fixed in 5.4.0.1092.101~18.04.66
  30. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1092-oracle to a version that resolves this vulnerability.

    Fixed in 5.4.0-1092.101~18.04.1
  31. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-1134-kvm to a version that resolves this vulnerability.

    Fixed in 4.15.0-1134.139
  32. Upgrade

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

    Fixed in 4.15.0.1134.125
  33. Upgrade

    Upgrade ubuntu/linux-image-generic-lpae to a version that resolves this vulnerability.

    Fixed in 4.15.0.202.185
  34. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-202-lowlatency to a version that resolves this vulnerability.

    Fixed in 4.15.0-202.213
  35. Upgrade

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

    Fixed in 4.15.0.202.185
  36. Upgrade

    Upgrade ubuntu/linux-image-lowlatency-hwe-16.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  37. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-1143-gcp to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  38. Upgrade

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

    Fixed in Ubuntu Pro
  39. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-1148-aws-hwe to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  40. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-202-generic to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  41. Upgrade

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

    Fixed in Ubuntu Pro
  42. Upgrade

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

    Fixed in Ubuntu Pro
  43. Upgrade

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

    Fixed in Ubuntu Pro
  44. Upgrade

    Upgrade ubuntu/linux-image-generic-hwe-16.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  45. Upgrade

    Upgrade ubuntu/linux-image-virtual-hwe-16.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  46. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-202-lowlatency to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  47. Upgrade

    Upgrade ubuntu/linux-image-4.15.0-1159-azure to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  48. Upgrade

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

    Fixed in Ubuntu Pro

Event History

Jan 13, 2023
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-5804-1?

USN-5804-1 is considered to be a critical vulnerability due to the potential for denial of service and arbitrary code execution.

2

How do I fix USN-5804-1?

To fix USN-5804-1, upgrade to the latest kernel version specified in the advisory for your Ubuntu distribution.

3

Which versions of Ubuntu are affected by USN-5804-1?

USN-5804-1 affects Ubuntu 20.04 and various kernel packages within that version.

4

What is CVE-2022-43945 related to USN-5804-1?

CVE-2022-43945 is the identifier for the specific vulnerability within USN-5804-1 that allows for buffer overflow in the NFSD implementation.

5

What are the potential impacts of USN-5804-1?

The impacts of USN-5804-1 include system crashes and the possibility of attackers executing arbitrary code remotely.

Company

Resources

Contact

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