CWE
119 190 416
Advisory Published

USN-5814-1: Linux kernel vulnerabilities

First published: Thu Jan 19 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-lowlatency-64k<5.19.0.1015.12
5.19.0.1015.12
=22.10
All of
ubuntu/linux-image-5.19.0-1017-azure<5.19.0-1017.18
5.19.0-1017.18
=22.10
All of
ubuntu/linux-image-azure<5.19.0.1017.13
5.19.0.1017.13
=22.10
All of
ubuntu/linux-image-5.19.0-1015-lowlatency<5.19.0-1015.16
5.19.0-1015.16
=22.10
All of
ubuntu/linux-image-5.19.0-1015-lowlatency-64k<5.19.0-1015.16
5.19.0-1015.16
=22.10
All of
ubuntu/linux-image-lowlatency<5.19.0.1015.12
5.19.0.1015.12
=22.10
All of
ubuntu/linux-image-5.15.0-1023-intel-iotg<5.15.0-1023.28
5.15.0-1023.28
=22.04
All of
ubuntu/linux-image-gkeop<5.15.0.1013.12
5.15.0.1013.12
=22.04
All of
ubuntu/linux-image-lowlatency-hwe-22.04<5.15.0.58.51
5.15.0.58.51
=22.04
All of
ubuntu/linux-image-5.15.0-1013-gkeop<5.15.0-1013.17
5.15.0-1013.17
=22.04
All of
ubuntu/linux-image-lowlatency-64k<5.15.0.58.51
5.15.0.58.51
=22.04
All of
ubuntu/linux-image-intel-iotg<5.15.0.1023.22
5.15.0.1023.22
=22.04
All of
ubuntu/linux-image-5.15.0-58-lowlatency-64k<5.15.0-58.64
5.15.0-58.64
=22.04
All of
ubuntu/linux-image-lowlatency-64k-hwe-22.04<5.15.0.58.51
5.15.0.58.51
=22.04
All of
ubuntu/linux-image-5.15.0-58-lowlatency<5.15.0-58.64
5.15.0-58.64
=22.04
All of
ubuntu/linux-image-gkeop-5.15<5.15.0.1013.12
5.15.0.1013.12
=22.04
All of
ubuntu/linux-image-lowlatency<5.15.0.58.51
5.15.0.58.51
=22.04
All of
ubuntu/linux-image-oracle<5.15.0.1027.33~20.04.1
5.15.0.1027.33~20.04.1
=20.04
All of
ubuntu/linux-image-5.15.0-58-lowlatency<5.15.0-58.64~20.04.1
5.15.0-58.64~20.04.1
=20.04
All of
ubuntu/linux-image-5.15.0-58-lowlatency-64k<5.15.0-58.64~20.04.1
5.15.0-58.64~20.04.1
=20.04
All of
ubuntu/linux-image-lowlatency-64k-hwe-20.04<5.15.0.58.64~20.04.21
5.15.0.58.64~20.04.21
=20.04
All of
ubuntu/linux-image-lowlatency-hwe-20.04<5.15.0.58.64~20.04.21
5.15.0.58.64~20.04.21
=20.04
All of
ubuntu/linux-image-5.15.0-1027-oracle<5.15.0-1027.33~20.04.1
5.15.0-1027.33~20.04.1
=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of this advisory?

    The vulnerability ID of this advisory is USN-5814-1.

  • What is the severity of USN-5814-1?

    The severity of this vulnerability (USN-5814-1) is not specified in the information provided.

  • How can a local attacker exploit CVE-2022-4378?

    A local attacker can exploit CVE-2022-4378 by using a stack-based buffer overflow to cause a denial of service (system crash) or execute arbitrary code.

  • Which versions of Ubuntu are affected by this vulnerability?

    The versions of Ubuntu affected by this vulnerability are Ubuntu 22.10 and Ubuntu 22.04.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability on the Ubuntu security website: [link](https://ubuntu.com/security/CVE-2022-4378)

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