CWE
416 476 362
Advisory Published

USN-5757-2: 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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.15.0-1111-oracle<4.15.0-1111.122~16.04.2
4.15.0-1111.122~16.04.2
=16.04
All of
ubuntu/linux-image-oem<4.15.0.200.185
4.15.0.200.185
=16.04
All of
ubuntu/linux-image-4.15.0-1141-gcp<4.15.0-1141.157~16.04.2
4.15.0-1141.157~16.04.2
=16.04
All of
ubuntu/linux-image-4.15.0-200-generic<4.15.0-200.211~16.04.2
4.15.0-200.211~16.04.2
=16.04
All of
ubuntu/linux-image-aws-hwe<4.15.0.1146.131
4.15.0.1146.131
=16.04
All of
ubuntu/linux-image-lowlatency-hwe-16.04<4.15.0.200.185
4.15.0.200.185
=16.04
All of
ubuntu/linux-image-gcp<4.15.0.1141.133
4.15.0.1141.133
=16.04
All of
ubuntu/linux-image-generic-hwe-16.04<4.15.0.200.185
4.15.0.200.185
=16.04
All of
ubuntu/linux-image-4.15.0-200-lowlatency<4.15.0-200.211~16.04.2
4.15.0-200.211~16.04.2
=16.04
All of
ubuntu/linux-image-oracle<4.15.0.1111.93
4.15.0.1111.93
=16.04
All of
ubuntu/linux-image-4.15.0-1146-aws-hwe<4.15.0-1146.158~16.04.2
4.15.0-1146.158~16.04.2
=16.04
All of
ubuntu/linux-image-virtual-hwe-16.04<4.15.0.200.185
4.15.0.200.185
=16.04
All of
ubuntu/linux-image-gke<4.15.0.1141.133
4.15.0.1141.133
=16.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-5757-2?

    The severity of USN-5757-2 is high.

  • How can a local attacker exploit the vulnerability (CVE-2022-42703) mentioned in USN-5757-2?

    A local attacker could exploit the vulnerability (CVE-2022-42703) to cause a denial of service (system crash) or possibly execute arbitrary code.

  • Which versions of the Linux kernel are affected by USN-5757-2?

    The Linux kernel versions 4.15.0-1111.122~16.04.2, 4.15.0.200.185, 4.15.0-1141.157~16.04.2, 4.15.0-200.211~16.04.2, 4.15.0.1146.131, 4.15.0.200.185, 4.15.0.1141.133, 4.15.0.200.185, 4.15.0-200.211~16.04.2, 4.15.0.1111.93, 4.15.0-1146.158~16.04.2, 4.15.0.200.185, and 4.15.0.1141.133 are affected by USN-5757-2.

  • How can I fix the vulnerability in the Linux kernel (CVE-2022-42703) mentioned in USN-5757-2?

    To fix the vulnerability (CVE-2022-42703), upgrade to version 4.15.0-1111.122~16.04.2, 4.15.0.200.185, 4.15.0-1141.157~16.04.2, 4.15.0-200.211~16.04.2, 4.15.0.1146.131, 4.15.0.200.185, 4.15.0.1141.133, 4.15.0.200.185, 4.15.0-200.211~16.04.2, 4.15.0.1111.93, 4.15.0-1146.158~16.04.2, 4.15.0.200.185, or 4.15.0.1141.133 of the Linux kernel.

  • Where can I find more information about the vulnerabilities mentioned in USN-5757-2?

    You can find more information about the vulnerabilities mentioned in USN-5757-2 at the following references: [CVE-2022-3239](https://ubuntu.com/security/CVE-2022-3239), [CVE-2022-42703](https://ubuntu.com/security/CVE-2022-42703), [CVE-2022-3524](https://ubuntu.com/security/CVE-2022-3524).

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