USN-6893-2: Linux kernel vulnerabilities

Published Jul 16, 2024
·
Updated

It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel when modifying certain settings values through debugfs. A privileged local attacker could use this to cause a denial of service. (CVE-2024-24857, CVE-2024-24858, CVE-2024-24859) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

Affected Software

13 affected componentsFixes available
Linux Linux kernel
All of the following
ubuntu/linux-image-6.8.0-1006-gke<6.8.0-1006.9
6.8.0-1006.9
Ubuntu Ubuntu=24.04
All of the following
ubuntu/linux-image-6.8.0-1009-nvidia<6.8.0-1009.9
6.8.0-1009.9
Ubuntu Ubuntu=24.04
All of the following
ubuntu/linux-image-6.8.0-1009-nvidia-64k<6.8.0-1009.9
6.8.0-1009.9
Ubuntu Ubuntu=24.04
All of the following
ubuntu/linux-image-gke<6.8.0-1006.9
6.8.0-1006.9
Ubuntu Ubuntu=24.04
All of the following
ubuntu/linux-image-nvidia<6.8.0-1009.9
6.8.0-1009.9
Ubuntu Ubuntu=24.04
All of the following
ubuntu/linux-image-nvidia-64k<6.8.0-1009.9
6.8.0-1009.9
Ubuntu Ubuntu=24.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-6.8.0-1006-gke to a version that resolves this vulnerability.

    Fixed in 6.8.0-1006.9
  2. Upgrade

    Upgrade ubuntu/linux-image-6.8.0-1009-nvidia to a version that resolves this vulnerability.

    Fixed in 6.8.0-1009.9
  3. Upgrade

    Upgrade ubuntu/linux-image-6.8.0-1009-nvidia-64k to a version that resolves this vulnerability.

    Fixed in 6.8.0-1009.9
  4. Upgrade

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

    Fixed in 6.8.0-1006.9
  5. Upgrade

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

    Fixed in 6.8.0-1009.9
  6. Upgrade

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

    Fixed in 6.8.0-1009.9
  7. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Patch USN-6893-2

Event History

Jul 16, 2024
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Frequently Asked Questions

1

What is the severity of USN-6893-2?

The severity of USN-6893-2 is considered to be high due to the potential for a local attacker to cause a denial of service.

2

How do I fix USN-6893-2?

To fix USN-6893-2, you should upgrade to the latest patched version of the Linux kernel specified in the advisory.

3

Which systems are affected by USN-6893-2?

USN-6893-2 affects Ubuntu 24.04 systems running specific versions of the Linux kernel.

4

What is the cause of the vulnerability in USN-6893-2?

The vulnerability in USN-6893-2 is caused by a race condition in the Bluetooth subsystem of the Linux kernel.

5

Can USN-6893-2 be exploited remotely?

No, USN-6893-2 requires local access for exploitation, as it involves a privilege escalation through the debugfs interface.

Company

Resources

Contact

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