CWE
119
Advisory Published

USN-5302-1: Linux kernel (OEM) vulnerabilities

First published: Tue Feb 22 2022(Updated: )

Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. (CVE-2022-0492) Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2021-43976) Wenqing Liu discovered that the f2fs file system implementation in the Linux kernel did not properly validate inode types while performing garbage collection. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2021-44879) Samuel Page discovered that the Transparent Inter-Process Communication (TIPC) protocol implementation in the Linux kernel contained a stack-based buffer overflow. A remote attacker could use this to cause a denial of service (system crash) for systems that have a TIPC bearer configured. (CVE-2022-0435) Lyu Tao discovered that the NFS implementation in the Linux kernel did not properly handle requests to open a directory on a regular file. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-24448) It was discovered that the YAM AX.25 device driver in the Linux kernel did not properly deallocate memory in some error conditions. A local privileged attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2022-24959)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-oem-20.04c<5.14.0.1024.22
5.14.0.1024.22
Ubuntu Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04b<5.14.0.1024.22
5.14.0.1024.22
Ubuntu Ubuntu=20.04
All of
ubuntu/linux-image-oem-20.04<5.14.0.1024.22
5.14.0.1024.22
Ubuntu Ubuntu=20.04
All of
ubuntu/linux-image-5.14.0-1024-oem<5.14.0-1024.26
5.14.0-1024.26
Ubuntu Ubuntu=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2022-0492?

    The severity of CVE-2022-0492 is high.

  • How does CVE-2022-0492 impact the Linux kernel?

    CVE-2022-0492 allows a local attacker to gain administrative privileges by exploiting a vulnerability in the cgroups implementation.

  • Which versions of Ubuntu Linux are affected by CVE-2022-0492?

    Ubuntu Linux version 20.04 is affected by CVE-2022-0492.

  • How can I fix the CVE-2022-0492 vulnerability?

    Update your Ubuntu Linux kernel to version 5.14.0.1024.22 or higher to fix the CVE-2022-0492 vulnerability.

  • Where can I find more information about CVE-2022-0492?

    You can find more information about CVE-2022-0492 on the Ubuntu Security website at https://ubuntu.com/security/CVE-2022-0492.

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