CWE
119 190 416 362
Advisory Published

USN-5914-1: Linux kernel (OEM) vulnerabilities

First published: Fri Mar 03 2023(Updated: )

It was discovered that the Upper Level Protocol (ULP) subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, 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-2023-0461) It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-43945) 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 IPv6 implementation in the Linux kernel contained a data race condition. An attacker could possibly use this to cause undesired behaviors. (CVE-2022-3567) It was discovered that the NFSD implementation in the Linux kernel contained a use-after-free vulnerability. A remote attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-4379) 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) It was discovered that the Atmel WILC1000 driver in the Linux kernel did not properly validate offsets, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash). (CVE-2022-47520) José Oliveira and Rodrigo Branco discovered that the prctl syscall implementation in the Linux kernel did not properly protect against indirect branch prediction attacks in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2023-0045) It was discovered that the io_uring subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2023-0469)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-6.0.0-1012-oem<6.0.0-1012.12
6.0.0-1012.12
=22.04
All of
ubuntu/linux-image-oem-22.04b<6.0.0.1012.12
6.0.0.1012.12
=22.04

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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-2022-42896, CVE-2022-47520, and CVE-2022-4379.

  • What is the severity of this vulnerability?

    The severity of this vulnerability is not mentioned in the provided information.

  • Which versions of Ubuntu are affected by this vulnerability?

    This vulnerability affects Ubuntu version 22.04.

  • What is the recommended remedy for this vulnerability?

    The recommended remedy for this vulnerability is to update the Linux kernel to version 6.0.0-1012.12 or 6.0.0.1012.12, depending on the package.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability on the Ubuntu security website. The references provided are: CVE-2022-42896, CVE-2022-47520, and CVE-2022-4379.

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