USN-4209-1: Linux kernel vulnerabilities

Published Dec 2, 2019
·
Updated

Jann Horn discovered that the OverlayFS and ShiftFS Drivers in the Linux kernel did not properly handle reference counting during memory mapping operations when used in conjunction with AUFS. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-15794) It was discovered that a buffer overflow existed in the 802.11 Wi-Fi configuration interface for the Linux kernel when handling beacon settings. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-16746) It was discovered that there was a memory leak in the Advanced Buffer Management functionality of the Netronome NFP4000/NFP6000 NIC Driver in the Linux kernel during certain error scenarios. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19076)

Affected Software

73 affected componentsFixes available
Canonical Linux kernel
All of the following
ubuntu/linux-image-5.0.0-1008-oracle<5.0.0-1008.13
5.0.0-1008.13
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-5.0.0-1022-aws<5.0.0-1022.25
5.0.0-1022.25
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-5.0.0-1023-kvm<5.0.0-1023.25
5.0.0-1023.25
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-5.0.0-1023-raspi2<5.0.0-1023.24
5.0.0-1023.24
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-5.0.0-1026-gcp<5.0.0-1026.27
5.0.0-1026.27
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-5.0.0-37-generic<5.0.0-37.40
5.0.0-37.40
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-5.0.0-37-generic-lpae<5.0.0-37.40
5.0.0-37.40
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-5.0.0-37-lowlatency<5.0.0-37.40
5.0.0-37.40
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-aws<5.0.0.1022.24
5.0.0.1022.24
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-gcp<5.0.0.1026.51
5.0.0.1026.51
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-generic<5.0.0.37.39
5.0.0.37.39
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-generic-lpae<5.0.0.37.39
5.0.0.37.39
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-gke<5.0.0.1026.51
5.0.0.1026.51
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-kvm<5.0.0.1023.24
5.0.0.1023.24
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-lowlatency<5.0.0.37.39
5.0.0.37.39
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-oracle<5.0.0.1008.34
5.0.0.1008.34
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-raspi2<5.0.0.1023.21
5.0.0.1023.21
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-virtual<5.0.0.37.39
5.0.0.37.39
Ubuntu Ubuntu=19.04
All of the following
ubuntu/linux-image-5.0.0-1008-oracle<5.0.0-1008.13~18.04.1
5.0.0-1008.13~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.0.0-1022-aws<5.0.0-1022.25~18.04.1
5.0.0-1022.25~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.0.0-1026-gcp<5.0.0-1026.27~18.04.1
5.0.0-1026.27~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.0.0-1026-gke<5.0.0-1026.27~18.04.2
5.0.0-1026.27~18.04.2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.0.0-1030-oem-osp1<5.0.0-1030.34
5.0.0-1030.34
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.0.0-37-generic<5.0.0-37.40~18.04.1
5.0.0-37.40~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.0.0-37-generic-lpae<5.0.0-37.40~18.04.1
5.0.0-37.40~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-5.0.0-37-lowlatency<5.0.0-37.40~18.04.1
5.0.0-37.40~18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-aws-edge<5.0.0.1022.36
5.0.0.1022.36
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gcp<5.0.0.1026.30
5.0.0.1026.30
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-generic-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-generic-lpae-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-gke-5.0<5.0.0.1026.15
5.0.0.1026.15
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-lowlatency-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oem-osp1<5.0.0.1030.34
5.0.0.1030.34
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-oracle-edge<5.0.0.1008.7
5.0.0.1008.7
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-snapdragon-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Ubuntu=18.04
All of the following
ubuntu/linux-image-virtual-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Ubuntu=18.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1008-oracle to a version that resolves this vulnerability.

    Fixed in 5.0.0-1008.13
  2. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1022-aws to a version that resolves this vulnerability.

    Fixed in 5.0.0-1022.25
  3. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1023-kvm to a version that resolves this vulnerability.

    Fixed in 5.0.0-1023.25
  4. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1023-raspi2 to a version that resolves this vulnerability.

    Fixed in 5.0.0-1023.24
  5. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1026-gcp to a version that resolves this vulnerability.

    Fixed in 5.0.0-1026.27
  6. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-37-generic to a version that resolves this vulnerability.

    Fixed in 5.0.0-37.40
  7. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-37-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.0.0-37.40
  8. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-37-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.0.0-37.40
  9. Upgrade

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

    Fixed in 5.0.0.1022.24
  10. Upgrade

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

    Fixed in 5.0.0.1026.51
  11. Upgrade

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

    Fixed in 5.0.0.37.39
  12. Upgrade

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

    Fixed in 5.0.0.37.39
  13. Upgrade

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

    Fixed in 5.0.0.1026.51
  14. Upgrade

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

    Fixed in 5.0.0.1023.24
  15. Upgrade

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

    Fixed in 5.0.0.37.39
  16. Upgrade

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

    Fixed in 5.0.0.1008.34
  17. Upgrade

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

    Fixed in 5.0.0.1023.21
  18. Upgrade

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

    Fixed in 5.0.0.37.39
  19. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1008-oracle to a version that resolves this vulnerability.

    Fixed in 5.0.0-1008.13~18.04.1
  20. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1022-aws to a version that resolves this vulnerability.

    Fixed in 5.0.0-1022.25~18.04.1
  21. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1026-gcp to a version that resolves this vulnerability.

    Fixed in 5.0.0-1026.27~18.04.1
  22. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1026-gke to a version that resolves this vulnerability.

    Fixed in 5.0.0-1026.27~18.04.2
  23. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-1030-oem-osp1 to a version that resolves this vulnerability.

    Fixed in 5.0.0-1030.34
  24. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-37-generic to a version that resolves this vulnerability.

    Fixed in 5.0.0-37.40~18.04.1
  25. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-37-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.0.0-37.40~18.04.1
  26. Upgrade

    Upgrade ubuntu/linux-image-5.0.0-37-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.0.0-37.40~18.04.1
  27. Upgrade

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

    Fixed in 5.0.0.1022.36
  28. Upgrade

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

    Fixed in 5.0.0.1026.30
  29. Upgrade

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

    Fixed in 5.0.0.37.95
  30. Upgrade

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

    Fixed in 5.0.0.37.95
  31. Upgrade

    Upgrade ubuntu/linux-image-gke-5.0 to a version that resolves this vulnerability.

    Fixed in 5.0.0.1026.15
  32. Upgrade

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

    Fixed in 5.0.0.37.95
  33. Upgrade

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

    Fixed in 5.0.0.1030.34
  34. Upgrade

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

    Fixed in 5.0.0.1008.7
  35. Upgrade

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

    Fixed in 5.0.0.37.95
  36. Upgrade

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

    Fixed in 5.0.0.37.95
  37. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch USN-4209-1

Event History

Dec 2, 2019
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-4209-1?

USN-4209-1 is classified as a medium severity vulnerability that could lead to denial of service.

2

How do I fix USN-4209-1?

To fix USN-4209-1, ensure you upgrade to the patched versions of the affected Linux packages listed in the advisory.

3

Which systems are affected by USN-4209-1?

USN-4209-1 affects Ubuntu version 19.04 running specific Linux kernel images.

4

What vulnerabilities are addressed in USN-4209-1?

USN-4209-1 addresses vulnerabilities related to improper reference counting in the OverlayFS and ShiftFS drivers in the Linux kernel.

5

Who discovered the vulnerabilities in USN-4209-1?

The vulnerabilities addressed in USN-4209-1 were discovered by Jann Horn.

Company

Resources

Contact

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