CWE
416 362
Advisory Published

USN-5727-2: Linux kernel (GCP) vulnerabilities

First published: Fri Nov 18 2022(Updated: )

It was discovered that a race condition existed in the instruction emulator of the Linux kernel on Arm 64-bit systems. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-20422) It was discovered that the KVM implementation in the Linux kernel did not properly handle virtual CPUs without APICs in certain situations. A local attacker could possibly use this to cause a denial of service (host system crash). (CVE-2022-2153) Hao Sun and Jiacheng Xu discovered that the NILFS file system implementation 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-2022-2978) Abhishek Shah discovered a race condition in the PF_KEYv2 implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2022-3028) 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) It was discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-36879) 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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.15.0-1138-gcp<4.15.0-1138.154
4.15.0-1138.154
=18.04
All of
ubuntu/linux-image-gcp-lts-18.04<4.15.0.1138.154
4.15.0.1138.154
=18.04
All of
ubuntu/linux-image-gke<4.15.0.1138.132
4.15.0.1138.132
=16.04
All of
ubuntu/linux-image-gcp<4.15.0.1138.132
4.15.0.1138.132
=16.04
All of
ubuntu/linux-image-4.15.0-1138-gcp<4.15.0-1138.154~16.04.1
4.15.0-1138.154~16.04.1
=16.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of this advisory?

    The vulnerability ID of this advisory is USN-5727-2.

  • What is the severity of the vulnerability?

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

  • What is the affected software?

    The affected software is the Linux kernel on Arm 64-bit systems with specified versions.

  • How can a local attacker exploit this vulnerability?

    A local attacker can exploit this vulnerability to cause a denial of service (system crash).

  • How can I fix this vulnerability?

    To fix this vulnerability, update to the specified versions of the Linux kernel.

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