CWE
416
Advisory Published

USN-7391-1: Linux kernel vulnerabilities

First published: Fri Mar 28 2025(Updated: )

Chenyuan Yang discovered that the CEC driver driver 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-2024-23848) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.4.0-211-generic<5.4.0-211.231
5.4.0-211.231
Ubuntu=20.04
All of
ubuntu/linux-image-5.4.0-211-generic-lpae<5.4.0-211.231
5.4.0-211.231
Ubuntu=20.04
All of
ubuntu/linux-image-5.4.0-211-lowlatency<5.4.0-211.231
5.4.0-211.231
Ubuntu=20.04
All of
ubuntu/linux-image-generic<5.4.0.211.206
5.4.0.211.206
Ubuntu=20.04
All of
ubuntu/linux-image-generic-lpae<5.4.0.211.206
5.4.0.211.206
Ubuntu=20.04
All of
ubuntu/linux-image-lowlatency<5.4.0.211.206
5.4.0.211.206
Ubuntu=20.04
All of
ubuntu/linux-image-oem<5.4.0.211.206
5.4.0.211.206
Ubuntu=20.04
All of
ubuntu/linux-image-oem-osp1<5.4.0.211.206
5.4.0.211.206
Ubuntu=20.04
All of
ubuntu/linux-image-virtual<5.4.0.211.206
5.4.0.211.206
Ubuntu=20.04
All of
ubuntu/linux-image-5.4.0-211-generic<5.4.0-211.231~18.04.1
5.4.0-211.231~18.04.1
Ubuntu=18.04
All of
ubuntu/linux-image-5.4.0-211-lowlatency<5.4.0-211.231~18.04.1
5.4.0-211.231~18.04.1
Ubuntu=18.04
All of
ubuntu/linux-image-generic-hwe-18.04<5.4.0.211.231~18.04.1
5.4.0.211.231~18.04.1
Ubuntu=18.04
All of
ubuntu/linux-image-lowlatency-hwe-18.04<5.4.0.211.231~18.04.1
5.4.0.211.231~18.04.1
Ubuntu=18.04
All of
ubuntu/linux-image-oem<5.4.0.211.231~18.04.1
5.4.0.211.231~18.04.1
Ubuntu=18.04
All of
ubuntu/linux-image-oem-osp1<5.4.0.211.231~18.04.1
5.4.0.211.231~18.04.1
Ubuntu=18.04
All of
ubuntu/linux-image-snapdragon-hwe-18.04<5.4.0.211.231~18.04.1
5.4.0.211.231~18.04.1
Ubuntu=18.04
All of
ubuntu/linux-image-virtual-hwe-18.04<5.4.0.211.231~18.04.1
5.4.0.211.231~18.04.1
Ubuntu=18.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-7391-1?

    The severity of USN-7391-1 is typically high due to the potential for denial of service and arbitrary code execution.

  • How do I fix USN-7391-1?

    To fix USN-7391-1, you should upgrade to the latest recommended Linux kernel version as specified in the Ubuntu advisory.

  • What is the cause of the USN-7391-1 vulnerability?

    USN-7391-1 is caused by a use-after-free vulnerability in the CEC driver of the Linux kernel.

  • Who can exploit the USN-7391-1 vulnerability?

    A local attacker can exploit the USN-7391-1 vulnerability to cause system crashes or to execute arbitrary code.

  • What versions of Ubuntu are affected by USN-7391-1?

    USN-7391-1 affects Ubuntu versions 20.04 and 18.04 with specific kernel versions listed in the advisory.

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