CWE
416 362
Advisory Published

USN-5878-1: Linux kernel (Azure) vulnerabilities

First published: Thu Feb 16 2023(Updated: )

It was discovered that the Bluetooth HCI implementation in the Linux kernel did not properly deallocate memory in some situations. An attacker could possibly use this cause a denial of service (memory exhaustion). (CVE-2022-3619) It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3628) It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3640) Tamás Koczka discovered that the Bluetooth L2CAP implementation in the Linux kernel did not properly initialize memory in some situations. A physically proximate attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2022-42895) It was discovered that a race condition existed in the qdisc implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-0590)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.19.0-1020-azure<5.19.0-1020.21
5.19.0-1020.21
=22.10
All of
ubuntu/linux-image-azure<5.19.0.1020.16
5.19.0.1020.16
=22.10

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2022-3619?

    The severity of CVE-2022-3619 is moderate.

  • How does CVE-2022-3619 affect the Linux kernel (Azure)?

    CVE-2022-3619 can cause a denial of service (memory exhaustion) in the Linux kernel (Azure).

  • What is the remedy for CVE-2022-3619 in Ubuntu 22.10 with kernel version 5.19.0-1020.21?

    To fix CVE-2022-3619 in Ubuntu 22.10 with kernel version 5.19.0-1020.21, update the package 'linux-image-5.19.0-1020-azure' to version 5.19.0-1020.21.

  • What is the remedy for CVE-2022-3619 in Ubuntu 22.10 with kernel version 5.19.0.1020.16?

    To fix CVE-2022-3619 in Ubuntu 22.10 with kernel version 5.19.0.1020.16, update the package 'linux-image-azure' to version 5.19.0.1020.16.

  • Where can I find more information about CVE-2022-3619?

    You can find more information about CVE-2022-3619 at the following link: [https://ubuntu.com/security/CVE-2022-3619](https://ubuntu.com/security/CVE-2022-3619)

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