USN-6444-1: Linux kernel vulnerabilities

Published Oct 19, 2023
·
Updated

Ross Lagerwall discovered that the Xen netback backend driver in the Linux kernel did not properly handle certain unusual packets from a paravirtualized network frontend, leading to a buffer overflow. An attacker in a guest VM could use this to cause a denial of service (host system crash) or possibly execute arbitrary code. (CVE-2023-34319) Bien Pham discovered that the netfiler subsystem in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4244) Kyle Zeng discovered that the networking stack implementation in the Linux kernel did not properly validate skb object size in certain conditions. An attacker could use this cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-42752) Kyle Zeng discovered that the netfiler subsystem in the Linux kernel did not properly calculate array offsets, leading to a out-of-bounds write vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-42753) Kyle Zeng discovered that the IPv4 Resource Reservation Protocol (RSVP) classifier implementation in the Linux kernel contained an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service (system crash). Please note that kernel packet classifier support for RSVP has been removed to resolve this vulnerability. (CVE-2023-42755) Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-42756) Bing-Jhong Billy Jheng discovered that the Unix domain socket implementation in the Linux kernel contained a race condition in certain situations, 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-2023-4622) Budimir Markovic discovered that the qdisc implementation in the Linux kernel did not properly validate inner classes, leading to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4623) Alex Birnberg discovered that the netfilter subsystem in the Linux kernel did not properly validate register length, leading to an out-of- bounds write vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-4881) It was discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel did not properly handle network packets in certain conditions, 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-2023-4921) Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly handle removal of rules from chain bindings in certain circumstances, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2023-5197)

Affected Software

91 affected componentsFixes available
Canonical Linux kernel
All of the following
ubuntu/linux-image-6.2.0-1007-starfive<6.2.0-1007.8
6.2.0-1007.8
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-1014-aws<6.2.0-1014.14
6.2.0-1014.14
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-1014-oracle<6.2.0-1014.14
6.2.0-1014.14
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-1015-azure<6.2.0-1015.15
6.2.0-1015.15
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-1015-kvm<6.2.0-1015.15
6.2.0-1015.15
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-1015-lowlatency<6.2.0-1015.15
6.2.0-1015.15
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-1015-lowlatency-64k<6.2.0-1015.15
6.2.0-1015.15
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-1015-raspi<6.2.0-1015.17
6.2.0-1015.17
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-1017-gcp<6.2.0-1017.19
6.2.0-1017.19
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-35-generic<6.2.0-35.35
6.2.0-35.35
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-35-generic-64k<6.2.0-35.35
6.2.0-35.35
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-35-generic-lpae<6.2.0-35.35
6.2.0-35.35
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-aws<6.2.0.1014.15
6.2.0.1014.15
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-azure<6.2.0.1015.15
6.2.0.1015.15
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-gcp<6.2.0.1017.17
6.2.0.1017.17
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-generic<6.2.0.35.35
6.2.0.35.35
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-generic-64k<6.2.0.35.35
6.2.0.35.35
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-generic-lpae<6.2.0.35.35
6.2.0.35.35
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-kvm<6.2.0.1015.15
6.2.0.1015.15
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-lowlatency<6.2.0.1015.15
6.2.0.1015.15
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-lowlatency-64k<6.2.0.1015.15
6.2.0.1015.15
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-oracle<6.2.0.1014.14
6.2.0.1014.14
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-raspi<6.2.0.1015.18
6.2.0.1015.18
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-raspi-nolpae<6.2.0.1015.18
6.2.0.1015.18
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-starfive<6.2.0.1007.10
6.2.0.1007.10
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-virtual<6.2.0.35.35
6.2.0.35.35
Ubuntu Ubuntu=23.04
All of the following
ubuntu/linux-image-6.2.0-1014-aws<6.2.0-1014.14~22.04.1
6.2.0-1014.14~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-6.2.0-1015-azure<6.2.0-1015.15~22.04.1
6.2.0-1015.15~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-6.2.0-1015-azure-fde<6.2.0-1015.15~22.04.1.1
6.2.0-1015.15~22.04.1.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-6.2.0-1015-lowlatency<6.2.0-1015.15~22.04.1
6.2.0-1015.15~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-6.2.0-1015-lowlatency-64k<6.2.0-1015.15~22.04.1
6.2.0-1015.15~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-6.2.0-1017-gcp<6.2.0-1017.19~22.04.1
6.2.0-1017.19~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-6.2.0-35-generic<6.2.0-35.35~22.04.1
6.2.0-35.35~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-6.2.0-35-generic-64k<6.2.0-35.35~22.04.1
6.2.0-35.35~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-6.2.0-35-generic-lpae<6.2.0-35.35~22.04.1
6.2.0-35.35~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-aws<6.2.0.1014.14~22.04.1
6.2.0.1014.14~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-azure<6.2.0.1015.15~22.04.1
6.2.0.1015.15~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-azure-fde<6.2.0.1015.15~22.04.1.12
6.2.0.1015.15~22.04.1.12
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-gcp<6.2.0.1017.19~22.04.1
6.2.0.1017.19~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-generic-64k-hwe-22.04<6.2.0.35.35~22.04.13
6.2.0.35.35~22.04.13
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-generic-hwe-22.04<6.2.0.35.35~22.04.13
6.2.0.35.35~22.04.13
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-generic-lpae-hwe-22.04<6.2.0.35.35~22.04.13
6.2.0.35.35~22.04.13
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-lowlatency-64k-hwe-22.04<6.2.0.1015.15~22.04.12
6.2.0.1015.15~22.04.12
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-lowlatency-hwe-22.04<6.2.0.1015.15~22.04.12
6.2.0.1015.15~22.04.12
Ubuntu Ubuntu=22.04
All of the following
ubuntu/linux-image-virtual-hwe-22.04<6.2.0.35.35~22.04.13
6.2.0.35.35~22.04.13
Ubuntu Ubuntu=22.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1007-starfive to a version that resolves this vulnerability.

    Fixed in 6.2.0-1007.8
  2. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1014-aws to a version that resolves this vulnerability.

    Fixed in 6.2.0-1014.14
  3. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1014-oracle to a version that resolves this vulnerability.

    Fixed in 6.2.0-1014.14
  4. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1015-azure to a version that resolves this vulnerability.

    Fixed in 6.2.0-1015.15
  5. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1015-kvm to a version that resolves this vulnerability.

    Fixed in 6.2.0-1015.15
  6. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1015-lowlatency to a version that resolves this vulnerability.

    Fixed in 6.2.0-1015.15
  7. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1015-lowlatency-64k to a version that resolves this vulnerability.

    Fixed in 6.2.0-1015.15
  8. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1015-raspi to a version that resolves this vulnerability.

    Fixed in 6.2.0-1015.17
  9. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1017-gcp to a version that resolves this vulnerability.

    Fixed in 6.2.0-1017.19
  10. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-35-generic to a version that resolves this vulnerability.

    Fixed in 6.2.0-35.35
  11. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-35-generic-64k to a version that resolves this vulnerability.

    Fixed in 6.2.0-35.35
  12. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-35-generic-lpae to a version that resolves this vulnerability.

    Fixed in 6.2.0-35.35
  13. Upgrade

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

    Fixed in 6.2.0.1014.15
  14. Upgrade

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

    Fixed in 6.2.0.1015.15
  15. Upgrade

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

    Fixed in 6.2.0.1017.17
  16. Upgrade

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

    Fixed in 6.2.0.35.35
  17. Upgrade

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

    Fixed in 6.2.0.35.35
  18. Upgrade

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

    Fixed in 6.2.0.35.35
  19. Upgrade

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

    Fixed in 6.2.0.1015.15
  20. Upgrade

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

    Fixed in 6.2.0.1015.15
  21. Upgrade

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

    Fixed in 6.2.0.1015.15
  22. Upgrade

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

    Fixed in 6.2.0.1014.14
  23. Upgrade

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

    Fixed in 6.2.0.1015.18
  24. Upgrade

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

    Fixed in 6.2.0.1015.18
  25. Upgrade

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

    Fixed in 6.2.0.1007.10
  26. Upgrade

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

    Fixed in 6.2.0.35.35
  27. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1014-aws to a version that resolves this vulnerability.

    Fixed in 6.2.0-1014.14~22.04.1
  28. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1015-azure to a version that resolves this vulnerability.

    Fixed in 6.2.0-1015.15~22.04.1
  29. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1015-azure-fde to a version that resolves this vulnerability.

    Fixed in 6.2.0-1015.15~22.04.1.1
  30. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1015-lowlatency to a version that resolves this vulnerability.

    Fixed in 6.2.0-1015.15~22.04.1
  31. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1015-lowlatency-64k to a version that resolves this vulnerability.

    Fixed in 6.2.0-1015.15~22.04.1
  32. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-1017-gcp to a version that resolves this vulnerability.

    Fixed in 6.2.0-1017.19~22.04.1
  33. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-35-generic to a version that resolves this vulnerability.

    Fixed in 6.2.0-35.35~22.04.1
  34. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-35-generic-64k to a version that resolves this vulnerability.

    Fixed in 6.2.0-35.35~22.04.1
  35. Upgrade

    Upgrade ubuntu/linux-image-6.2.0-35-generic-lpae to a version that resolves this vulnerability.

    Fixed in 6.2.0-35.35~22.04.1
  36. Upgrade

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

    Fixed in 6.2.0.1014.14~22.04.1
  37. Upgrade

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

    Fixed in 6.2.0.1015.15~22.04.1
  38. Upgrade

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

    Fixed in 6.2.0.1015.15~22.04.1.12
  39. Upgrade

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

    Fixed in 6.2.0.1017.19~22.04.1
  40. Upgrade

    Upgrade ubuntu/linux-image-generic-64k-hwe-22.04 to a version that resolves this vulnerability.

    Fixed in 6.2.0.35.35~22.04.13
  41. Upgrade

    Upgrade ubuntu/linux-image-generic-hwe-22.04 to a version that resolves this vulnerability.

    Fixed in 6.2.0.35.35~22.04.13
  42. Upgrade

    Upgrade ubuntu/linux-image-generic-lpae-hwe-22.04 to a version that resolves this vulnerability.

    Fixed in 6.2.0.35.35~22.04.13
  43. Upgrade

    Upgrade ubuntu/linux-image-lowlatency-64k-hwe-22.04 to a version that resolves this vulnerability.

    Fixed in 6.2.0.1015.15~22.04.12
  44. Upgrade

    Upgrade ubuntu/linux-image-lowlatency-hwe-22.04 to a version that resolves this vulnerability.

    Fixed in 6.2.0.1015.15~22.04.12
  45. Upgrade

    Upgrade ubuntu/linux-image-virtual-hwe-22.04 to a version that resolves this vulnerability.

    Fixed in 6.2.0.35.35~22.04.13

Event History

Oct 19, 2023
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-6444-1?

USN-6444-1 has been classified with a critical severity due to the potential for denial of service through buffer overflow.

2

How do I fix USN-6444-1?

To remediate USN-6444-1, update the Linux kernel packages to version 6.2.0-1007.8 or later.

3

Which Ubuntu versions are affected by USN-6444-1?

The vulnerability in USN-6444-1 affects Ubuntu 23.04 across several specific kernel packages.

4

What types of attacks does USN-6444-1 protect against?

USN-6444-1 protects against denial of service attacks that exploit the buffer overflow vulnerability.

5

Is there a workaround for USN-6444-1?

Currently, the recommended action for USN-6444-1 is to apply the appropriate kernel updates rather than relying on workarounds.

Company

Resources

Contact

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