What is the severity of USN-7455-5?

The severity of USN-7455-5 is considered high due to the potential for denial of service and privilege escalation.

How do I fix USN-7455-5?

To resolve USN-7455-5, update your Linux kernel to version 5.15.0-1082.89~20.04.1 or later.

What systems are affected by USN-7455-5?

USN-7455-5 affects Ubuntu 20.04 users running specific versions of the Linux kernel.

Can USN-7455-5 be exploited remotely?

USN-7455-5 requires local access to exploit, meaning an attacker must have local user privileges.

What type of vulnerability is USN-7455-5?

USN-7455-5 is an out-of-bounds write vulnerability affecting the watch_queue event notification subsystem.

Vulnerability/
USN-7455-5

29/4/2025

11/5/2025

USN-7455-5: Linux kernel (AWS) vulnerabilities

First published: Tue Apr 29 2025(Updated: )

Jann Horn discovered that the watch_queue event notification subsystem in the Linux kernel contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or escalate their privileges. (CVE-2022-0995) 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 Software	Affected Version	How to fix

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

What is the severity of USN-7455-5?
The severity of USN-7455-5 is considered high due to the potential for denial of service and privilege escalation.
How do I fix USN-7455-5?
To resolve USN-7455-5, update your Linux kernel to version 5.15.0-1082.89~20.04.1 or later.
What systems are affected by USN-7455-5?
USN-7455-5 affects Ubuntu 20.04 users running specific versions of the Linux kernel.
Can USN-7455-5 be exploited remotely?
USN-7455-5 requires local access to exploit, meaning an attacker must have local user privileges.
What type of vulnerability is USN-7455-5?
USN-7455-5 is an out-of-bounds write vulnerability affecting the watch_queue event notification subsystem.

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