USN-4412-1: Linux kernel vulnerabilities

Published Jul 6, 2020
·
Updated

Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service (system crash). (CVE-2020-10711) It was discovered that the SCSI generic (sg) driver in the Linux kernel did not properly handle certain error conditions correctly. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2020-12770) It was discovered that the USB Gadget device driver in the Linux kernel did not validate arguments passed from configfs in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2020-13143) Dmitry Vyukov discovered that the SELinux netlink security hook in the Linux kernel did not validate messages in some situations. A privileged attacker could use this to bypass SELinux netlink restrictions. (CVE-2020-10751) It was discovered that the KVM implementation in the Linux kernel did not properly deallocate memory on initialization for some processors. A local attacker could possibly use this to cause a denial of service. (CVE-2020-12768)

Affected Software

83 affected componentsFixes available
Canonical Linux kernel
All of the following
ubuntu/linux-image-5.3.0-1024-kvm<5.3.0-1024.26
5.3.0-1024.26
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-5.3.0-1028-oracle<5.3.0-1028.30
5.3.0-1028.30
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-5.3.0-1030-aws<5.3.0-1030.32
5.3.0-1030.32
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-5.3.0-1030-gcp<5.3.0-1030.32
5.3.0-1030.32
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-5.3.0-1032-azure<5.3.0-1032.33
5.3.0-1032.33
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-5.3.0-62-generic<5.3.0-62.56
5.3.0-62.56
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-5.3.0-62-generic-lpae<5.3.0-62.56
5.3.0-62.56
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-5.3.0-62-lowlatency<5.3.0-62.56
5.3.0-62.56
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-5.3.0-62-snapdragon<5.3.0-62.56
5.3.0-62.56
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-aws<5.3.0.1030.40
5.3.0.1030.40
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-azure<5.3.0.1032.50
5.3.0.1032.50
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-gcp<5.3.0.1030.40
5.3.0.1030.40
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-generic<5.3.0.62.52
5.3.0.62.52
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-generic-lpae<5.3.0.62.52
5.3.0.62.52
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-gke<5.3.0.1030.40
5.3.0.1030.40
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-kvm<5.3.0.1024.22
5.3.0.1024.22
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-lowlatency<5.3.0.62.52
5.3.0.62.52
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-oracle<5.3.0.1028.43
5.3.0.1028.43
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-snapdragon<5.3.0.62.52
5.3.0.62.52
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-virtual<5.3.0.62.52
5.3.0.62.52
Ubuntu Ubuntu=19.10
All of the following
ubuntu/linux-image-5.3.0-1028-oracle<5.3.0-1028.30~18.04.1
5.3.0-1028.30~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.3.0-1028-raspi2<5.3.0-1028.30~18.04.2
5.3.0-1028.30~18.04.2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.3.0-1030-aws<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.3.0-1030-gcp<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.3.0-1030-gke<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.3.0-1032-azure<5.3.0-1032.33~18.04.1
5.3.0-1032.33~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.3.0-62-generic<5.3.0-62.56~18.04.1
5.3.0-62.56~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.3.0-62-generic-lpae<5.3.0-62.56~18.04.1
5.3.0-62.56~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.3.0-62-lowlatency<5.3.0-62.56~18.04.1
5.3.0-62.56~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-aws<5.3.0.1030.28
5.3.0.1030.28
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-azure<5.3.0.1032.28
5.3.0.1032.28
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gcp<5.3.0.1030.24
5.3.0.1030.24
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-generic-hwe-18.04<5.3.0.62.115
5.3.0.62.115
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-generic-lpae-hwe-18.04<5.3.0.62.115
5.3.0.62.115
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gke-5.3<5.3.0.1030.15
5.3.0.1030.15
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gkeop-5.3<5.3.0.62.115
5.3.0.62.115
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-lowlatency-hwe-18.04<5.3.0.62.115
5.3.0.62.115
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oracle<5.3.0.1028.25
5.3.0.1028.25
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-raspi2-hwe-18.04<5.3.0.1028.17
5.3.0.1028.17
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-snapdragon-hwe-18.04<5.3.0.62.115
5.3.0.62.115
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-virtual-hwe-18.04<5.3.0.62.115
5.3.0.62.115
Ubuntu Ubuntu=18.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1024-kvm to a version that resolves this vulnerability.

    Fixed in 5.3.0-1024.26
  2. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1028-oracle to a version that resolves this vulnerability.

    Fixed in 5.3.0-1028.30
  3. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1030-aws to a version that resolves this vulnerability.

    Fixed in 5.3.0-1030.32
  4. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1030-gcp to a version that resolves this vulnerability.

    Fixed in 5.3.0-1030.32
  5. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1032-azure to a version that resolves this vulnerability.

    Fixed in 5.3.0-1032.33
  6. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-62-generic to a version that resolves this vulnerability.

    Fixed in 5.3.0-62.56
  7. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-62-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.3.0-62.56
  8. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-62-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.3.0-62.56
  9. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-62-snapdragon to a version that resolves this vulnerability.

    Fixed in 5.3.0-62.56
  10. Upgrade

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

    Fixed in 5.3.0.1030.40
  11. Upgrade

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

    Fixed in 5.3.0.1032.50
  12. Upgrade

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

    Fixed in 5.3.0.1030.40
  13. Upgrade

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

    Fixed in 5.3.0.62.52
  14. Upgrade

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

    Fixed in 5.3.0.62.52
  15. Upgrade

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

    Fixed in 5.3.0.1030.40
  16. Upgrade

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

    Fixed in 5.3.0.1024.22
  17. Upgrade

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

    Fixed in 5.3.0.62.52
  18. Upgrade

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

    Fixed in 5.3.0.1028.43
  19. Upgrade

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

    Fixed in 5.3.0.62.52
  20. Upgrade

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

    Fixed in 5.3.0.62.52
  21. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1028-oracle to a version that resolves this vulnerability.

    Fixed in 5.3.0-1028.30~18.04.1
  22. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1028-raspi2 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1028.30~18.04.2
  23. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1030-aws to a version that resolves this vulnerability.

    Fixed in 5.3.0-1030.32~18.04.1
  24. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1030-gcp to a version that resolves this vulnerability.

    Fixed in 5.3.0-1030.32~18.04.1
  25. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1030-gke to a version that resolves this vulnerability.

    Fixed in 5.3.0-1030.32~18.04.1
  26. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-1032-azure to a version that resolves this vulnerability.

    Fixed in 5.3.0-1032.33~18.04.1
  27. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-62-generic to a version that resolves this vulnerability.

    Fixed in 5.3.0-62.56~18.04.1
  28. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-62-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.3.0-62.56~18.04.1
  29. Upgrade

    Upgrade ubuntu/linux-image-5.3.0-62-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.3.0-62.56~18.04.1
  30. Upgrade

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

    Fixed in 5.3.0.1030.28
  31. Upgrade

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

    Fixed in 5.3.0.1032.28
  32. Upgrade

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

    Fixed in 5.3.0.1030.24
  33. Upgrade

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

    Fixed in 5.3.0.62.115
  34. Upgrade

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

    Fixed in 5.3.0.62.115
  35. Upgrade

    Upgrade ubuntu/linux-image-gke-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0.1030.15
  36. Upgrade

    Upgrade ubuntu/linux-image-gkeop-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0.62.115
  37. Upgrade

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

    Fixed in 5.3.0.62.115
  38. Upgrade

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

    Fixed in 5.3.0.1028.25
  39. Upgrade

    Upgrade ubuntu/linux-image-raspi2-hwe-18.04 to a version that resolves this vulnerability.

    Fixed in 5.3.0.1028.17
  40. Upgrade

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

    Fixed in 5.3.0.62.115
  41. Upgrade

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

    Fixed in 5.3.0.62.115
  42. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Patch USN-4412-1

Event History

Jul 6, 2020
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-4412-1?

USN-4412-1 is classified as a high severity vulnerability due to its potential to cause a denial of service.

2

How do I fix USN-4412-1?

To fix USN-4412-1, update your Linux kernel to the latest version available in the Ubuntu repositories.

3

What systems are affected by USN-4412-1?

USN-4412-1 affects Ubuntu 19.10 and various packages of the Linux kernel.

4

What kind of attacks can exploit USN-4412-1?

A remote attacker can exploit USN-4412-1 to cause a denial of service by coercing the SELinux network label handling implementation.

5

Is there a workaround for USN-4412-1?

There is no known workaround for USN-4412-1; the recommended action is to apply the security updates.

Company

Resources

Contact

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