USN-5265-1: Linux kernel vulnerabilities

Published Feb 3, 2022
·
Updated

Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during device removal. A privileged or physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-27820) It was discovered that the Bluetooth subsystem in the Linux kernel contained 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-2021-3640) Likang Luo discovered that a race condition existed in the Bluetooth 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-2021-3752) It was discovered that the SCTP protocol implementation in the Linux kernel did not properly verify VTAGs in some situations. A remote attacker could possibly use this to cause a denial of service (connection disassociation). (CVE-2021-3772) It was discovered that the eBPF implementation in the Linux kernel contained a race condition around read-only maps. A privileged attacker could use this to modify read-only maps. (CVE-2021-4001) It was discovered that the NFS server implementation in the Linux kernel contained 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-2021-4090) Felix Wilhelm discovered that the KVM implementation in the Linux kernel did not properly handle exit events from AMD Secure Encrypted Virtualization-Encrypted State (SEV-ES) guest VMs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash) or possibly execute arbitrary code in the host kernel. (CVE-2021-4093) Lin Ma discovered that the NFC Controller Interface (NCI) implementation in the Linux kernel contained a race condition, 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-2021-4202) It was discovered that the AMD Radeon GPU driver in the Linux kernel did not properly validate writes in the debugfs file system. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-42327) Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel did not properly perform bounds checking in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-42739)

Affected Software

83 affected componentsFixes available
Canonical Linux kernel
All of the following
ubuntu/linux-image-virtual<5.13.0.28.38
5.13.0.28.38
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-generic<5.13.0.28.38
5.13.0.28.38
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1012-aws<5.13.0-1012.13
5.13.0-1012.13
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-aws<5.13.0.1012.13
5.13.0.1012.13
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-28-generic-lpae<5.13.0-28.31
5.13.0-28.31
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-28-generic<5.13.0-28.31
5.13.0-28.31
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-28-lowlatency<5.13.0-28.31
5.13.0-28.31
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1011-kvm<5.13.0-1011.12
5.13.0-1011.12
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-raspi-nolpae<5.13.0.1016.21
5.13.0.1016.21
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1013-gcp<5.13.0-1013.16
5.13.0-1013.16
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-28-generic-64k<5.13.0-28.31
5.13.0-28.31
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-oem-20.04<5.13.0.28.38
5.13.0.28.38
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1016-oracle<5.13.0-1016.20
5.13.0-1016.20
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-gke<5.13.0.1013.12
5.13.0.1013.12
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1016-raspi<5.13.0-1016.18
5.13.0-1016.18
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-gcp<5.13.0.1013.12
5.13.0.1013.12
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-oracle<5.13.0.1016.16
5.13.0.1016.16
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1016-raspi-nolpae<5.13.0-1016.18
5.13.0-1016.18
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-raspi<5.13.0.1016.21
5.13.0.1016.21
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-kvm<5.13.0.1011.11
5.13.0.1011.11
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-generic-lpae<5.13.0.28.38
5.13.0.28.38
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-generic-64k<5.13.0.28.38
5.13.0.28.38
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-lowlatency<5.13.0.28.38
5.13.0.28.38
Ubuntu Ubuntu=21.10
All of the following
ubuntu/linux-image-5.13.0-1029-oem<5.13.0-1029.36
5.13.0-1029.36
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-1029-gcp<5.11.0-1029.33~20.04.3
5.11.0-1029.33~20.04.3
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-virtual-hwe-20.04<5.13.0.28.31~20.04.15
5.13.0.28.31~20.04.15
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-aws<5.11.0.1028.31~20.04.26
5.11.0.1028.31~20.04.26
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.13.0-28-generic<5.13.0-28.31~20.04.1
5.13.0-28.31~20.04.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-lowlatency-hwe-20.04<5.13.0.28.31~20.04.15
5.13.0.28.31~20.04.15
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.13.0-28-lowlatency<5.13.0-28.31~20.04.1
5.13.0-28.31~20.04.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oem-20.04c<5.13.0.1029.31
5.13.0.1029.31
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-1028-oracle<5.11.0-1028.31~20.04.1
5.11.0-1028.31~20.04.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-azure<5.11.0.1028.31~20.04.26
5.11.0.1028.31~20.04.26
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.13.0-28-generic-64k<5.13.0-28.31~20.04.1
5.13.0-28.31~20.04.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-gcp<5.11.0.1029.33~20.04.27
5.11.0.1029.33~20.04.27
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.11.0-1028-azure<5.11.0-1028.31~20.04.2
5.11.0-1028.31~20.04.2
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-oracle<5.11.0.1028.31~20.04.20
5.11.0.1028.31~20.04.20
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-lpae-hwe-20.04<5.13.0.28.31~20.04.15
5.13.0.28.31~20.04.15
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-hwe-20.04<5.13.0.28.31~20.04.15
5.13.0.28.31~20.04.15
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-generic-64k-hwe-20.04<5.13.0.28.31~20.04.15
5.13.0.28.31~20.04.15
Ubuntu Ubuntu=20.04
All of the following
ubuntu/linux-image-5.13.0-28-generic-lpae<5.13.0-28.31~20.04.1
5.13.0-28.31~20.04.1
Ubuntu Ubuntu=20.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 5.13.0.28.38
  2. Upgrade

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

    Fixed in 5.13.0.28.38
  3. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1012-aws to a version that resolves this vulnerability.

    Fixed in 5.13.0-1012.13
  4. Upgrade

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

    Fixed in 5.13.0.1012.13
  5. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-28-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.13.0-28.31
  6. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-28-generic to a version that resolves this vulnerability.

    Fixed in 5.13.0-28.31
  7. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-28-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.13.0-28.31
  8. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1011-kvm to a version that resolves this vulnerability.

    Fixed in 5.13.0-1011.12
  9. Upgrade

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

    Fixed in 5.13.0.1016.21
  10. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1013-gcp to a version that resolves this vulnerability.

    Fixed in 5.13.0-1013.16
  11. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-28-generic-64k to a version that resolves this vulnerability.

    Fixed in 5.13.0-28.31
  12. Upgrade

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

    Fixed in 5.13.0.28.38
  13. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1016-oracle to a version that resolves this vulnerability.

    Fixed in 5.13.0-1016.20
  14. Upgrade

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

    Fixed in 5.13.0.1013.12
  15. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1016-raspi to a version that resolves this vulnerability.

    Fixed in 5.13.0-1016.18
  16. Upgrade

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

    Fixed in 5.13.0.1013.12
  17. Upgrade

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

    Fixed in 5.13.0.1016.16
  18. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1016-raspi-nolpae to a version that resolves this vulnerability.

    Fixed in 5.13.0-1016.18
  19. Upgrade

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

    Fixed in 5.13.0.1016.21
  20. Upgrade

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

    Fixed in 5.13.0.1011.11
  21. Upgrade

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

    Fixed in 5.13.0.28.38
  22. Upgrade

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

    Fixed in 5.13.0.28.38
  23. Upgrade

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

    Fixed in 5.13.0.28.38
  24. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-1029-oem to a version that resolves this vulnerability.

    Fixed in 5.13.0-1029.36
  25. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1029-gcp to a version that resolves this vulnerability.

    Fixed in 5.11.0-1029.33~20.04.3
  26. Upgrade

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

    Fixed in 5.13.0.28.31~20.04.15
  27. Upgrade

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

    Fixed in 5.11.0.1028.31~20.04.26
  28. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-28-generic to a version that resolves this vulnerability.

    Fixed in 5.13.0-28.31~20.04.1
  29. Upgrade

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

    Fixed in 5.13.0.28.31~20.04.15
  30. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-28-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.13.0-28.31~20.04.1
  31. Upgrade

    Upgrade ubuntu/linux-image-oem-20.04c to a version that resolves this vulnerability.

    Fixed in 5.13.0.1029.31
  32. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1028-oracle to a version that resolves this vulnerability.

    Fixed in 5.11.0-1028.31~20.04.1
  33. Upgrade

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

    Fixed in 5.11.0.1028.31~20.04.26
  34. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-28-generic-64k to a version that resolves this vulnerability.

    Fixed in 5.13.0-28.31~20.04.1
  35. Upgrade

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

    Fixed in 5.11.0.1029.33~20.04.27
  36. Upgrade

    Upgrade ubuntu/linux-image-5.11.0-1028-azure to a version that resolves this vulnerability.

    Fixed in 5.11.0-1028.31~20.04.2
  37. Upgrade

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

    Fixed in 5.11.0.1028.31~20.04.20
  38. Upgrade

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

    Fixed in 5.13.0.28.31~20.04.15
  39. Upgrade

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

    Fixed in 5.13.0.28.31~20.04.15
  40. Upgrade

    Upgrade ubuntu/linux-image-generic-64k-hwe-20.04 to a version that resolves this vulnerability.

    Fixed in 5.13.0.28.31~20.04.15
  41. Upgrade

    Upgrade ubuntu/linux-image-5.13.0-28-generic-lpae to a version that resolves this vulnerability.

    Fixed in 5.13.0-28.31~20.04.1
  42. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Patch USN-5265-1

Event History

Feb 3, 2022
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-5265-1?

The vulnerability identified in USN-5265-1 has a severity level that poses a risk of denial of service due to a use-after-free condition in the nouveau graphics driver.

2

How do I fix USN-5265-1?

To remediate USN-5265-1, users should upgrade to the fixed versions of the Linux kernel packages noted in the advisory.

3

What products are affected by USN-5265-1?

USN-5265-1 affects various Ubuntu 21.10 packages including linux-image-virtual, linux-image-generic, and others.

4

Who discovered the vulnerability in USN-5265-1?

The vulnerability in USN-5265-1 was discovered by researcher Jeremy Cline.

5

Is physical access required to exploit USN-5265-1?

Yes, a privileged or physically proximate attacker needs to exploit the vulnerability described in USN-5265-1.

Company

Resources

Contact

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