Advisory Published

USN-5416-1: Linux kernel (OEM) vulnerabilities

First published: Thu May 12 2022(Updated: )

Qiuhao Li, Gaoning Pan and Yongkang Jia discovered that the KVM implementation in the Linux kernel did not properly perform guest page table updates in some situations. An attacker in a guest vm could possibly use this to crash the host OS. (CVE-2022-1158) It was discovered that the implementation of X.25 network protocols in the Linux kernel did not terminate link layer sessions properly. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1516) It was discovered that the 8 Devices USB2CAN interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-28388) It was discovered that the Microchip CAN BUS Analyzer interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-28389) It was discovered that the EMS CAN/USB interface implementation in the Linux kernel contained a double-free vulnerability when handling certain error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-28390)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.14.0-1036-oem<5.14.0-1036.40
5.14.0-1036.40
Ubuntu Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04c<5.14.0.1036.33
5.14.0.1036.33
Ubuntu Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04b<5.14.0.1036.33
5.14.0.1036.33
Ubuntu Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04<5.14.0.1036.33
5.14.0.1036.33
Ubuntu Ubuntu=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-5416-1?

    The severity of USN-5416-1 is not mentioned in the provided information. Please refer to the official Ubuntu security advisory for more details.

  • How can an attacker exploit CVE-2022-1158?

    An attacker in a guest vm could possibly use the KVM vulnerability (CVE-2022-1158) to crash the host OS.

  • What is the recommended version of linux-image-5.14.0-1036-oem?

    The recommended version of linux-image-5.14.0-1036-oem is 5.14.0-1036.40. Please update to this version to fix the vulnerability.

  • What is the recommended version of linux-image-oem-20.04c?

    The recommended version of linux-image-oem-20.04c is 5.14.0.1036.33. Please update to this version to fix the vulnerability.

  • Where can I find more information about the vulnerabilities?

    You can find more information about the vulnerabilities in the official Ubuntu security advisories: CVE-2022-1158, CVE-2022-28388, and CVE-2022-28389.

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