USN-6648-1: Linux kernel vulnerabilities

Published Feb 22, 2024
·
Updated

It was discovered that a race condition existed in the AppleTalk networking subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-51781) Zhenghan Wang discovered that the generic ID allocator implementation in the Linux kernel did not properly check for null bitmap when releasing IDs. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-6915) Robert Morris discovered that the CIFS network file system implementation in the Linux kernel did not properly validate certain server commands fields, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2024-0565) Jann Horn discovered that the TLS subsystem in the Linux kernel did not properly handle spliced messages, leading to an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-0646)

Affected Software

96 affected componentsFixes available
All of the following
ubuntu/linux-image-5.4.0-1031-iot<5.4.0-1031.32
5.4.0-1031.32
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1038-xilinx-zynqmp<5.4.0-1038.42
5.4.0-1038.42
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1066-ibm<5.4.0-1066.71
5.4.0-1066.71
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1079-bluefield<5.4.0-1079.85
5.4.0-1079.85
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1086-gkeop<5.4.0-1086.90
5.4.0-1086.90
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1103-raspi<5.4.0-1103.115
5.4.0-1103.115
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1107-kvm<5.4.0-1107.114
5.4.0-1107.114
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1118-oracle<5.4.0-1118.127
5.4.0-1118.127
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1119-aws<5.4.0-1119.129
5.4.0-1119.129
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1123-gcp<5.4.0-1123.132
5.4.0-1123.132
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-172-generic<5.4.0-172.190
5.4.0-172.190
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-172-generic-lpae<5.4.0-172.190
5.4.0-172.190
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-172-lowlatency<5.4.0-172.190
5.4.0-172.190
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-aws-lts-20.04<5.4.0.1119.116
5.4.0.1119.116
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-bluefield<5.4.0.1079.74
5.4.0.1079.74
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gcp-lts-20.04<5.4.0.1123.125
5.4.0.1123.125
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic<5.4.0.172.170
5.4.0.172.170
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-lpae<5.4.0.172.170
5.4.0.172.170
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gkeop<5.4.0.1086.84
5.4.0.1086.84
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gkeop-5.4<5.4.0.1086.84
5.4.0.1086.84
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-ibm-lts-20.04<5.4.0.1066.95
5.4.0.1066.95
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-kvm<5.4.0.1107.103
5.4.0.1107.103
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-lowlatency<5.4.0.172.170
5.4.0.172.170
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oem<5.4.0.172.170
5.4.0.172.170
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oem-osp1<5.4.0.172.170
5.4.0.172.170
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oracle-lts-20.04<5.4.0.1118.111
5.4.0.1118.111
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-raspi<5.4.0.1103.133
5.4.0.1103.133
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-raspi2<5.4.0.1103.133
5.4.0.1103.133
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-virtual<5.4.0.172.170
5.4.0.172.170
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-xilinx-zynqmp<5.4.0.1038.38
5.4.0.1038.38
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.4.0-1066-ibm<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-1103-raspi<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-1118-oracle<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-1119-aws<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-1123-gcp<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-172-generic<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.4.0-172-lowlatency<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-aws<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gcp<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-generic-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-ibm<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-lowlatency-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oem<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oem-osp1<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oracle<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-raspi-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-snapdragon-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-virtual-hwe-18.04<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=18.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1031-iot to a version that resolves this vulnerability.

    Fixed in 5.4.0-1031.32
  2. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1038-xilinx-zynqmp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1038.42
  3. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1066-ibm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1066.71
  4. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1079-bluefield to a version that resolves this vulnerability.

    Fixed in 5.4.0-1079.85
  5. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1086-gkeop to a version that resolves this vulnerability.

    Fixed in 5.4.0-1086.90
  6. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1103-raspi to a version that resolves this vulnerability.

    Fixed in 5.4.0-1103.115
  7. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1107-kvm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1107.114
  8. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1118-oracle to a version that resolves this vulnerability.

    Fixed in 5.4.0-1118.127
  9. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1119-aws to a version that resolves this vulnerability.

    Fixed in 5.4.0-1119.129
  10. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1123-gcp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1123.132
  11. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-172-generic to a version that resolves this vulnerability.

    Fixed in 5.4.0-172.190
  12. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-172-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.4.0-172.190
  13. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-172-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.4.0-172.190
  14. Upgrade

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

    Fixed in 5.4.0.1119.116
  15. Upgrade

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

    Fixed in 5.4.0.1079.74
  16. Upgrade

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

    Fixed in 5.4.0.1123.125
  17. Upgrade

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

    Fixed in 5.4.0.172.170
  18. Upgrade

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

    Fixed in 5.4.0.172.170
  19. Upgrade

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

    Fixed in 5.4.0.1086.84
  20. Upgrade

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

    Fixed in 5.4.0.1086.84
  21. Upgrade

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

    Fixed in 5.4.0.1066.95
  22. Upgrade

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

    Fixed in 5.4.0.1107.103
  23. Upgrade

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

    Fixed in 5.4.0.172.170
  24. Upgrade

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

    Fixed in 5.4.0.172.170
  25. Upgrade

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

    Fixed in 5.4.0.172.170
  26. Upgrade

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

    Fixed in 5.4.0.1118.111
  27. Upgrade

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

    Fixed in 5.4.0.1103.133
  28. Upgrade

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

    Fixed in 5.4.0.1103.133
  29. Upgrade

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

    Fixed in 5.4.0.172.170
  30. Upgrade

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

    Fixed in 5.4.0.1038.38
  31. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1066-ibm to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  32. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1103-raspi to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  33. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1118-oracle to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  34. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1119-aws to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  35. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-1123-gcp to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  36. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-172-generic to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  37. Upgrade

    Upgrade ubuntu/linux-image-5.4.0-172-lowlatency to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  38. Upgrade

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

    Fixed in Ubuntu Pro
  39. Upgrade

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

    Fixed in Ubuntu Pro
  40. Upgrade

    Upgrade ubuntu/linux-image-generic-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  41. Upgrade

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

    Fixed in Ubuntu Pro
  42. Upgrade

    Upgrade ubuntu/linux-image-lowlatency-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  43. Upgrade

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

    Fixed in Ubuntu Pro
  44. Upgrade

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

    Fixed in Ubuntu Pro
  45. Upgrade

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

    Fixed in Ubuntu Pro
  46. Upgrade

    Upgrade ubuntu/linux-image-raspi-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  47. Upgrade

    Upgrade ubuntu/linux-image-snapdragon-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  48. Upgrade

    Upgrade ubuntu/linux-image-virtual-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro
  49. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Patch USN-6648-1

Event History

Feb 22, 2024
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-6648-1?

The severity of USN-6648-1 is significant due to a use-after-free vulnerability that could lead to system crashes or execution of arbitrary code.

2

How do I fix USN-6648-1?

To fix USN-6648-1, you should update your system to the latest kernel version specified in the advisory.

3

Who is affected by USN-6648-1?

USN-6648-1 affects local users of Ubuntu 20.04 who are utilizing specific kernel packages.

4

What is the nature of the vulnerability in USN-6648-1?

The vulnerability in USN-6648-1 is a race condition in the AppleTalk networking subsystem of the Linux kernel.

5

Can USN-6648-1 lead to remote exploitation?

No, USN-6648-1 is a local vulnerability, meaning it cannot be exploited remotely and requires local access to the system.

Company

Resources

Contact

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