CWE
416
Advisory Published

USN-5444-1: Linux kernel vulnerability

First published: Tue May 24 2022(Updated: )

Kyle Zeng discovered that the Network Queuing and Scheduling subsystem of 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 execute arbitrary code.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-oem-22.04<5.17.0.1006.6
5.17.0.1006.6
Ubuntu Ubuntu=22.04
All of
ubuntu/linux-image-oem-22.04a<5.17.0.1006.6
5.17.0.1006.6
Ubuntu Ubuntu=22.04
All of
ubuntu/linux-image-5.17.0-1006-oem<5.17.0-1006.6
5.17.0-1006.6
Ubuntu Ubuntu=22.04
All of
ubuntu/linux-image-oem-20.04c<5.14.0.1038.35
5.14.0.1038.35
Ubuntu Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04b<5.14.0.1038.35
5.14.0.1038.35
Ubuntu Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04<5.14.0.1038.35
5.14.0.1038.35
Ubuntu Ubuntu=20.04
All of
ubuntu/linux-image-5.14.0-1038-oem<5.14.0-1038.42
5.14.0-1038.42
Ubuntu Ubuntu=20.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this Linux kernel vulnerability?

    The vulnerability ID is USN-5444-1.

  • What is the impact of the USN-5444-1 vulnerability?

    The vulnerability can be used by a local attacker to cause a denial of service or execute arbitrary code.

  • Which Linux kernel versions are affected by USN-5444-1?

    The affected Linux kernel versions include linux-image-oem-22.04, linux-image-oem-20.04c, linux-image-oem-20.04b, linux-image-oem-20.04d, and linux-image-5.14.0-1038-oem.

  • How can I fix the USN-5444-1 vulnerability?

    To fix the vulnerability, update your Linux kernel to version 5.17.0.1006.6 for linux-image-oem-22.04, version 5.14.0.1038.35 for linux-image-oem-20.04c, linux-image-oem-20.04b, linux-image-oem-20.04d, and version 5.14.0-1038.42 for linux-image-5.14.0-1038-oem.

  • Where can I find more information about USN-5444-1 vulnerability?

    More information about the vulnerability can be found on the Ubuntu Security Notices website.

Contact

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