CWE
476 362
Advisory Published

USN-6465-3: Linux kernel (GKE) vulnerabilities

First published: Fri Nov 10 2023(Updated: )

Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-31083) Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a null pointer dereference vulnerability in some situations. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-3772)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.15.0-1046-gke<5.15.0-1046.51
5.15.0-1046.51
=22.04
All of
ubuntu/linux-image-gke<5.15.0.1046.45
5.15.0.1046.45
=22.04
All of
ubuntu/linux-image-gke-5.15<5.15.0.1046.45
5.15.0.1046.45
=22.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6465-3?

    The severity of USN-6465-3 is medium.

  • How can an attacker exploit CVE-2023-31083?

    A local attacker can exploit CVE-2023-31083 to cause a denial of service (system crash) by exploiting a race condition in the Bluetooth HCI UART driver.

  • What is the remedy for Linux kernel vulnerabilities on Ubuntu 22.04?

    To fix the Linux kernel vulnerabilities on Ubuntu 22.04, update the 'linux-image-5.15.0-1046-gke' package to version 5.15.0-1046.51.

  • What are the references for USN-6465-3?

    The references for USN-6465-3 are: https://ubuntu.com/security/CVE-2023-3772, https://ubuntu.com/security/CVE-2023-31083, and https://ubuntu.com/security/notices/USN-6415-1.

  • Which CWE IDs are associated with USN-6465-3?

    The CWE IDs associated with USN-6465-3 are CWE-476 and CWE-362.

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