USN-4678-1: Linux kernel vulnerabilities

Published Jan 6, 2021
·
Updated

It was discovered that the AMD Running Average Power Limit (RAPL) driver in the Linux kernel did not properly restrict access to power data. A local attacker could possibly use this to expose sensitive information. (CVE-2020-12912) Jann Horn discovered that the iouring subsystem in the Linux kernel did not properly perform reference counting in some situations. A local attacker could use this to expose sensitive information or possibly escalate privileges. (CVE-2020-29534)

Affected Software

62 affected componentsFixes available
All of the following
ubuntu/linux-image-5.8.0-1011-raspi<5.8.0-1011.14
5.8.0-1011.14
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-1011-raspi-nolpae<5.8.0-1011.14
5.8.0-1011.14
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-1014-kvm<5.8.0-1014.15
5.8.0-1014.15
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-1014-oracle<5.8.0-1014.14
5.8.0-1014.14
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-1015-gcp<5.8.0-1015.15
5.8.0-1015.15
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-1016-azure<5.8.0-1016.17
5.8.0-1016.17
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-1017-aws<5.8.0-1017.18
5.8.0-1017.18
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-34-generic<5.8.0-34.37
5.8.0-34.37
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-34-generic-64k<5.8.0-34.37
5.8.0-34.37
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-34-generic-lpae<5.8.0-34.37
5.8.0-34.37
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-34-lowlatency<5.8.0-34.37
5.8.0-34.37
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-aws<5.8.0.1017.19
5.8.0.1017.19
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-azure<5.8.0.1016.16
5.8.0.1016.16
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-gcp<5.8.0.1015.15
5.8.0.1015.15
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-generic<5.8.0.34.39
5.8.0.34.39
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-generic-64k<5.8.0.34.39
5.8.0.34.39
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-generic-lpae<5.8.0.34.39
5.8.0.34.39
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-gke<5.8.0.1015.15
5.8.0.1015.15
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-kvm<5.8.0.1014.16
5.8.0.1014.16
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-lowlatency<5.8.0.34.39
5.8.0.34.39
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-oracle<5.8.0.1014.14
5.8.0.1014.14
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-raspi<5.8.0.1011.14
5.8.0.1011.14
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-raspi-nolpae<5.8.0.1011.14
5.8.0.1011.14
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-virtual<5.8.0.34.39
5.8.0.34.39
Ubuntu Ubuntu=20.10
All of the following
ubuntu/linux-image-5.8.0-34-generic<5.8.0-34.37~20.04.2
5.8.0-34.37~20.04.2
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.8.0-34-generic-lpae<5.8.0-34.37~20.04.2
5.8.0-34.37~20.04.2
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.8.0-34-lowlatency<5.8.0-34.37~20.04.2
5.8.0-34.37~20.04.2
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-hwe-20.04<5.8.0.34.37~20.04.20
5.8.0.34.37~20.04.20
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-lpae-hwe-20.04<5.8.0.34.37~20.04.20
5.8.0.34.37~20.04.20
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-lowlatency-hwe-20.04<5.8.0.34.37~20.04.20
5.8.0.34.37~20.04.20
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-virtual-hwe-20.04<5.8.0.34.37~20.04.20
5.8.0.34.37~20.04.20
Ubuntu Ubuntu=20.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-1011-raspi to a version that resolves this vulnerability.

    Fixed in 5.8.0-1011.14
  2. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-1011-raspi-nolpae to a version that resolves this vulnerability.

    Fixed in 5.8.0-1011.14
  3. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-1014-kvm to a version that resolves this vulnerability.

    Fixed in 5.8.0-1014.15
  4. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-1014-oracle to a version that resolves this vulnerability.

    Fixed in 5.8.0-1014.14
  5. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-1015-gcp to a version that resolves this vulnerability.

    Fixed in 5.8.0-1015.15
  6. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-1016-azure to a version that resolves this vulnerability.

    Fixed in 5.8.0-1016.17
  7. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-1017-aws to a version that resolves this vulnerability.

    Fixed in 5.8.0-1017.18
  8. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-34-generic to a version that resolves this vulnerability.

    Fixed in 5.8.0-34.37
  9. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-34-generic-64k to a version that resolves this vulnerability.

    Fixed in 5.8.0-34.37
  10. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-34-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.8.0-34.37
  11. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-34-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.8.0-34.37
  12. Upgrade

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

    Fixed in 5.8.0.1017.19
  13. Upgrade

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

    Fixed in 5.8.0.1016.16
  14. Upgrade

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

    Fixed in 5.8.0.1015.15
  15. Upgrade

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

    Fixed in 5.8.0.34.39
  16. Upgrade

    Upgrade ubuntu/linux-image-generic-64k to a version that resolves this vulnerability.

    Fixed in 5.8.0.34.39
  17. Upgrade

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

    Fixed in 5.8.0.34.39
  18. Upgrade

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

    Fixed in 5.8.0.1015.15
  19. Upgrade

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

    Fixed in 5.8.0.1014.16
  20. Upgrade

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

    Fixed in 5.8.0.34.39
  21. Upgrade

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

    Fixed in 5.8.0.1014.14
  22. Upgrade

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

    Fixed in 5.8.0.1011.14
  23. Upgrade

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

    Fixed in 5.8.0.1011.14
  24. Upgrade

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

    Fixed in 5.8.0.34.39
  25. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-34-generic to a version that resolves this vulnerability.

    Fixed in 5.8.0-34.37~20.04.2
  26. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-34-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.8.0-34.37~20.04.2
  27. Upgrade

    Upgrade ubuntu/linux-image-5.8.0-34-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.8.0-34.37~20.04.2
  28. Upgrade

    Upgrade ubuntu/linux-image-generic-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.8.0.34.37~20.04.20
  29. Upgrade

    Upgrade ubuntu/linux-image-generic-lpae-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.8.0.34.37~20.04.20
  30. Upgrade

    Upgrade ubuntu/linux-image-lowlatency-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.8.0.34.37~20.04.20
  31. Upgrade

    Upgrade ubuntu/linux-image-virtual-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.8.0.34.37~20.04.20

Event History

Jan 6, 2021
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Company

Resources

Contact

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