CWE
190 416 362
Advisory Published

USN-5865-1: Linux kernel (Azure) vulnerabilities

First published: Fri Feb 10 2023(Updated: )

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 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 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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.15.0-1161-azure<4.15.0-1161.176
4.15.0-1161.176
=18.04
All of
ubuntu/linux-image-azure-lts-18.04<4.15.0.1161.129
4.15.0.1161.129
=18.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-5865-1?

    The severity of USN-5865-1 is high.

  • How does the out-of-bounds write vulnerability in Video for Linux 2 (V4L2) impact the Linux kernel?

    The vulnerability can be exploited by a local attacker to cause a denial of service (system crash) or potentially execute arbitrary code.

  • Which version of the Linux kernel is affected by the out-of-bounds write vulnerability in Video for Linux 2 (V4L2)?

    The vulnerability affects Linux kernel version 4.15.0-1161.176 (linux-image-4.15.0-1161-azure) and version 4.15.0.1161.129 (linux-image-azure-lts-18.04).

  • How can I fix the out-of-bounds write vulnerability in Video for Linux 2 (V4L2) in the Linux kernel?

    To fix the vulnerability, update your Linux kernel to version 4.15.0-1161.176 (linux-image-4.15.0-1161-azure) or version 4.15.0.1161.129 (linux-image-azure-lts-18.04).

  • Where can I find more information about USN-5865-1 and the associated vulnerabilities?

    You can find more information about USN-5865-1 and the associated vulnerabilities on the Ubuntu Security website.

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