CWE
119 190 416 362
Advisory Published

USN-5883-1: Linux kernel (HWE) vulnerabilities

First published: Wed Feb 22 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) It was discovered that an out-of-bounds write vulnerability existed in the Video for Linux 2 (V4L2) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-20369) Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation (eIBRS) did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information. (CVE-2022-26373) David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel incorrectly handled certain message payloads in some situations. A remote attacker could possibly use this to cause a denial of service or bypass firewall filtering. (CVE-2022-2663) Johannes Wikner and Kaveh Razavi discovered that for some AMD x86-64 processors, the branch predictor could by mis-trained for return instructions in certain circumstances. A local attacker could possibly use this to expose sensitive information. (CVE-2022-29900) Johannes Wikner and Kaveh Razavi discovered that for some Intel x86-64 processors, the Linux kernel's protections against speculative branch target injection attacks were insufficient in some circumstances. A local attacker could possibly use this to expose sensitive information. (CVE-2022-29901) It was discovered that a race condition existed in the Kernel Connection Multiplexor (KCM) socket implementation in the Linux kernel when releasing sockets in certain situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3521) It was discovered that the Netronome Ethernet driver in the Linux kernel contained 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-2022-3545) 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) It was discovered that the NILFS2 file system implementation in the Linux kernel did not properly deallocate memory in certain error conditions. An attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3646) Khalid Masum discovered that the NILFS2 file system implementation in the Linux kernel did not properly handle certain error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-3649) Hyunwoo Kim discovered that an integer overflow vulnerability existed in the PXA3xx graphics driver in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-39842) It was discovered that a race condition existed in the SMSC UFX USB driver implementation in the Linux kernel, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-41849) It was discovered that a race condition existed in the Roccat HID driver 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-2022-41850) It was discovered that a race condition existed in the Xen network backend driver in the Linux kernel when handling dropped packets in certain circumstances. An attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-42328) 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 the USB monitoring (usbmon) component in the Linux kernel did not properly set permissions on memory mapped in to user space processes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-43750) 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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-lowlatency-hwe-16.04<4.15.0.206.191
4.15.0.206.191
=16.04
All of
ubuntu/linux-image-4.15.0-206-lowlatency<4.15.0-206.217~16.04.1+1
4.15.0-206.217~16.04.1+1
=16.04
All of
ubuntu/linux-image-virtual-hwe-16.04<4.15.0.206.191
4.15.0.206.191
=16.04
All of
ubuntu/linux-image-oem<4.15.0.206.191
4.15.0.206.191
=16.04
All of
ubuntu/linux-image-4.15.0-206-generic<4.15.0-206.217~16.04.1+1
4.15.0-206.217~16.04.1+1
=16.04
All of
ubuntu/linux-image-generic-hwe-16.04<4.15.0.206.191
4.15.0.206.191
=16.04

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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-2022-4378.

  • What is the impact of the Linux kernel vulnerability?

    The Linux kernel vulnerability allows a local attacker to cause a denial of service (system crash) or execute arbitrary code.

  • How can I fix the Linux kernel vulnerability with the affected software version 4.15.0.206.191?

    To fix the Linux kernel vulnerability with the affected software version 4.15.0.206.191, update the linux-image-lowlatency-hwe-16.04 package to version 4.15.0.206.191 or higher.

  • Is there a fix available for the Linux kernel vulnerability on Ubuntu 16.04?

    Yes, there are fixes available for the Linux kernel vulnerability on Ubuntu 16.04. Please refer to the Ubuntu security advisories for more information.

  • Can the Linux kernel vulnerability be exploited remotely?

    No, the Linux kernel vulnerability can only be exploited by a local attacker.

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