USN-6819-2: Linux kernel vulnerabilities

Published Jun 11, 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) 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

13 affected componentsFixes available
Canonical Linux kernel
All of the following
ubuntu/linux-image-6.5.0-1021-aws<6.5.0-1021.21
6.5.0-1021.21
Ubuntu Ubuntu=23.10
All of the following
ubuntu/linux-image-6.5.0-1024-oracle<6.5.0-1024.24
6.5.0-1024.24
Ubuntu Ubuntu=23.10
All of the following
ubuntu/linux-image-6.5.0-1024-oracle-64k<6.5.0-1024.24
6.5.0-1024.24
Ubuntu Ubuntu=23.10
All of the following
ubuntu/linux-image-aws<6.5.0.1021.21
6.5.0.1021.21
Ubuntu Ubuntu=23.10
All of the following
ubuntu/linux-image-oracle<6.5.0.1024.26
6.5.0.1024.26
Ubuntu Ubuntu=23.10
All of the following
ubuntu/linux-image-oracle-64k<6.5.0.1024.26
6.5.0.1024.26
Ubuntu Ubuntu=23.10

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-6.5.0-1021-aws to a version that resolves this vulnerability.

    Fixed in 6.5.0-1021.21
  2. Upgrade

    Upgrade ubuntu/linux-image-6.5.0-1024-oracle to a version that resolves this vulnerability.

    Fixed in 6.5.0-1024.24
  3. Upgrade

    Upgrade ubuntu/linux-image-6.5.0-1024-oracle-64k to a version that resolves this vulnerability.

    Fixed in 6.5.0-1024.24
  4. Upgrade

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

    Fixed in 6.5.0.1021.21
  5. Upgrade

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

    Fixed in 6.5.0.1024.26
  6. Upgrade

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

    Fixed in 6.5.0.1024.26
  7. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Patch USN-6819-2

Event History

Jun 11, 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-6819-2?

The severity of USN-6819-2 is critical due to the potential for a remote attacker to cause a denial of service.

2

How do I fix USN-6819-2?

You can fix USN-6819-2 by upgrading to the recommended version of the affected packages, as specified in the advisory.

3

Which versions of Ubuntu are affected by USN-6819-2?

Ubuntu 23.10 is affected by USN-6819-2 regarding the NVMe-oF/TCP subsystem vulnerability.

4

What types of vulnerabilities are included in USN-6819-2?

USN-6819-2 includes vulnerabilities that can lead to a null pointer dereference and potential system crashes.

5

Who discovered the vulnerability in USN-6819-2?

The vulnerability described in USN-6819-2 was discovered by Alon Zahavi.

Contact

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