USN-6818-2: Linux kernel (ARM laptop) vulnerabilities

Published Jun 10, 2024
·
Updated

Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly validate H2C PDU data, leading to a null pointer dereference vulnerability. A remote attacker could use this to cause a denial of service (system crash). (CVE-2023-6356, CVE-2023-6535, CVE-2023-6536) It was discovered that the Intel Data Streaming and Intel Analytics Accelerator drivers in the Linux kernel allowed direct access to the devices for unprivileged users and virtual machines. A local attacker could use this to cause a denial of service. (CVE-2024-21823) Chenyuan Yang discovered that the RDS Protocol implementation in the Linux kernel contained an out-of-bounds read vulnerability. An attacker could use this to possibly cause a denial of service (system crash). (CVE-2024-23849) It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to a null pointer dereference vulnerability. A privileged local attacker could use this to possibly cause a denial of service (system crash). (CVE-2024-24860) 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

5 affected componentsFixes available
Linux Kernel
All of the following
ubuntu/linux-image-6.5.0-1017-laptop<6.5.0-1017.20
6.5.0-1017.20
Ubuntu Ubuntu=23.10
All of the following
ubuntu/linux-image-laptop-23.10<6.5.0.1017.20
6.5.0.1017.20
Ubuntu Ubuntu=23.10

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-6.5.0-1017-laptop to a version that resolves this vulnerability.

    Fixed in 6.5.0-1017.20
  2. Upgrade

    Upgrade ubuntu/linux-image-laptop-23.10 to a version that resolves this vulnerability.

    Fixed in 6.5.0.1017.20
  3. Upgrade

    Upgrade Linux kernel (ARM laptop) to a version that resolves this vulnerability.

    Patch USN-6818-2

Event History

Jun 10, 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-6818-2?

The vulnerability USN-6818-2 is considered to have a high severity, as it can lead to a denial of service through a system crash.

2

How do I fix USN-6818-2?

To fix USN-6818-2, update the Linux kernel to version 6.5.0-1017.20 or higher.

3

What systems are affected by USN-6818-2?

USN-6818-2 primarily affects Ubuntu systems running versions of the Linux kernel prior to 6.5.0-1017.20.

4

What does the USN-6818-2 vulnerability affect?

USN-6818-2 affects the NVMe-oF/TCP subsystem in the Linux kernel due to improper validation of H2C PDU data.

5

Can USN-6818-2 be exploited remotely?

Yes, a remote attacker can exploit USN-6818-2 to trigger a null pointer dereference, causing a denial of service.

Contact

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