CWE
416 476 362
Advisory Published

USN-5758-1: Linux kernel vulnerabilities

First published: Thu Dec 01 2022(Updated: )

Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA mappings in some situations, leading to potential data structure reuse. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42703) It was discovered that the video4linux driver for Empia based TV cards in the Linux kernel did not properly perform reference counting in some situations, 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-2022-3239) It was discovered that a memory leak existed in the IPv6 implementation of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3524) It was discovered that a race condition existed in the Bluetooth subsystem 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-2022-3564) It was discovered that the ISDN implementation of the Linux kernel contained a use-after-free vulnerability. A privileged user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3565) It was discovered that the TCP implementation in the Linux kernel contained a data race condition. An attacker could possibly use this to cause undesired behaviors. (CVE-2022-3566) 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 Realtek RTL8152 USB Ethernet adapter driver in the Linux kernel did not properly handle certain error conditions. A local attacker with physical access could plug in a specially crafted USB device to cause a denial of service (memory exhaustion). (CVE-2022-3594) It was discovered that a null pointer dereference existed in the NILFS2 file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3621) It was discovered that the IDT 77252 ATM PCI device driver in the Linux kernel did not properly remove any pending timers during device exit, resulting in 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-2022-3635) 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) Xingyuan Mo and Gengjia Chen discovered that the Promise SuperTrak EX storage controller driver in the Linux kernel did not properly handle certain structures. A local attacker could potentially use this to expose sensitive information (kernel memory). (CVE-2022-40768) 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-4.4.0-1115-kvm<4.4.0-1115.125
4.4.0-1115.125
=16.04
All of
ubuntu/linux-image-virtual<4.4.0.235.241
4.4.0.235.241
=16.04
All of
ubuntu/linux-image-aws<4.4.0.1152.156
4.4.0.1152.156
=16.04
All of
ubuntu/linux-image-4.4.0-1152-aws<4.4.0-1152.167
4.4.0-1152.167
=16.04
All of
ubuntu/linux-image-4.4.0-235-generic<4.4.0-235.269
4.4.0-235.269
=16.04
All of
ubuntu/linux-image-generic<4.4.0.235.241
4.4.0.235.241
=16.04
All of
ubuntu/linux-image-kvm<4.4.0.1115.112
4.4.0.1115.112
=16.04
All of
ubuntu/linux-image-4.4.0-235-lowlatency<4.4.0-235.269
4.4.0-235.269
=16.04
All of
ubuntu/linux-image-lowlatency<4.4.0.235.241
4.4.0.235.241
=16.04
All of
ubuntu/linux-image-4.4.0-235-generic<4.4.0-235.269~14.04.1
4.4.0-235.269~14.04.1
=14.04
All of
ubuntu/linux-image-4.4.0-1114-aws<4.4.0-1114.120
4.4.0-1114.120
=14.04
All of
ubuntu/linux-image-generic-lts-xenial<4.4.0.235.204
4.4.0.235.204
=14.04
All of
ubuntu/linux-image-4.4.0-235-lowlatency<4.4.0-235.269~14.04.1
4.4.0-235.269~14.04.1
=14.04
All of
ubuntu/linux-image-lowlatency-lts-xenial<4.4.0.235.204
4.4.0.235.204
=14.04
All of
ubuntu/linux-image-aws<4.4.0.1114.111
4.4.0.1114.111
=14.04
All of
ubuntu/linux-image-virtual-lts-xenial<4.4.0.235.204
4.4.0.235.204
=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2022-42?

    The severity of CVE-2022-42 is high.

  • How does CVE-2022-42 affect Ubuntu 16.04?

    CVE-2022-42 affects Ubuntu 16.04 and it requires the Linux kernel to be updated to version 4.4.0-1115.125 or higher to fix the vulnerability.

  • What should I do if I'm using the linux-image-4.4.0-1115-kvm package?

    If you're using the linux-image-4.4.0-1115-kvm package, you should update it to version 4.4.0-1115.125 or higher to fix CVE-2022-42.

  • Is there a fix for CVE-2022-42 on Ubuntu 14.04?

    Yes, there is a fix for CVE-2022-42 on Ubuntu 14.04. You should update the package linux-image-4.4.0-235-generic to version 4.4.0-235.269~14.04.1 or higher.

  • Where can I find more information about CVE-2022-42?

    You can find more information about CVE-2022-42 on the Ubuntu Security Advisory page: https://ubuntu.com/security/CVE-2022-42.

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