CWE
119 190 416
Advisory Published

USN-5832-1: Linux kernel (Raspberry Pi) vulnerabilities

First published: Mon Jan 30 2023(Updated: )

Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-4378) Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42896) It was discovered that the Xen netback driver in the Linux kernel did not properly handle packets structured in certain ways. An attacker in a guest VM could possibly use this to cause a denial of service (host NIC availability). (CVE-2022-3643) It was discovered that an integer overflow vulnerability existed in the Bluetooth subsystem in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2022-45934)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.19.0-1012-raspi-nolpae<5.19.0-1012.19
5.19.0-1012.19
=22.10
All of
ubuntu/linux-image-raspi-nolpae<5.19.0.1012.11
5.19.0.1012.11
=22.10
All of
ubuntu/linux-image-raspi<5.19.0.1012.11
5.19.0.1012.11
=22.10
All of
ubuntu/linux-image-5.19.0-1012-raspi<5.19.0-1012.19
5.19.0-1012.19
=22.10

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this Linux kernel vulnerability?

    The vulnerability ID for this Linux kernel vulnerability is CVE-2022-4378.

  • What is the impact of this vulnerability?

    This vulnerability could allow a local attacker to cause a denial of service (system crash) or execute arbitrary code.

  • How can this vulnerability be exploited?

    This vulnerability can be exploited by a local attacker using a stack-based buffer overflow or by exploiting the Bluetooth L2CAP handshake implementation.

  • How can I fix this vulnerability?

    To fix this vulnerability, update your Ubuntu system to the specific kernel versions mentioned in the Ubuntu security advisories (USN-5832-1).

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability in the Ubuntu security advisories linked in the references section.

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