CWE
476 362
Advisory Published

USN-6465-2: Linux kernel (Raspberry Pi) vulnerabilities

First published: Wed Nov 01 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-5.15.0-1042-raspi<5.15.0-1042.45
5.15.0-1042.45
=22.04
All of
ubuntu/linux-image-raspi<5.15.0.1042.40
5.15.0.1042.40
=22.04
All of
ubuntu/linux-image-raspi-nolpae<5.15.0.1042.40
5.15.0.1042.40
=22.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2023-31083?

    The severity of CVE-2023-31083 is not specified.

  • How do I fix CVE-2023-31083?

    To fix CVE-2023-31083, update your Ubuntu system to linux-image-5.15.0-1042-raspi version 5.15.0-1042.45 or higher.

  • What is the severity of CVE-2023-3772?

    The severity of CVE-2023-3772 is not specified.

  • How do I fix CVE-2023-3772?

    There is no fix currently available for CVE-2023-3772.

  • Where can I find more information about USN-6439-1?

    You can find more information about USN-6439-1 at the following link: [USN-6439-1](https://ubuntu.com/security/notices/USN-6439-1)

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