What is the vulnerability ID for this advisory?

The vulnerability ID for this advisory is USN-5557-1.

What is the severity of the vulnerability?

The severity of the vulnerability is not mentioned in the advisory.

How can a local attacker exploit this vulnerability?

A local attacker can exploit this vulnerability to cause a denial of service (system crash) or execute arbitrary code.

Which Linux kernel versions are affected by this vulnerability?

The Linux kernel versions affected are 4.4.0.231.237, 4.4.0.1147.151, 4.4.0-1112.122, 4.4.0-231.265, 4.4.0-1147.162, 4.4.0-231.265~14.04.1, 4.4.0.231.201, 4.4.0-231.265~14.04.1, 4.4.0-1111.117, 4.4.0.231.201, 4.4.0.1111.108.

How do I fix this vulnerability?

To fix this vulnerability, update your Linux kernel to version 4.4.0.231.237, 4.4.0.1147.151, 4.4.0-1112.122, 4.4.0-231.265, 4.4.0-1147.162, 4.4.0-231.265~14.04.1, 4.4.0.231.201, 4.4.0-231.265~14.04.1, 4.4.0-1111.117, 4.4.0.231.201, or 4.4.0.1111.108 depending on the affected version.

Vulnerability/
USN-5557-1

CWE

416

9/8/2022

10/5/2025

USN-5557-1: Linux kernel vulnerabilities

First published: Tue Aug 09 2022(Updated: )

Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-2588) It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, 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. (CVE-2022-2586)

Affected Software	Affected Version	How to fix

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Frequently Asked Questions

What is the vulnerability ID for this advisory?
The vulnerability ID for this advisory is USN-5557-1.
What is the severity of the vulnerability?
The severity of the vulnerability is not mentioned in the advisory.
How can a local attacker exploit this vulnerability?
A local attacker can exploit this vulnerability to cause a denial of service (system crash) or execute arbitrary code.
Which Linux kernel versions are affected by this vulnerability?
The Linux kernel versions affected are 4.4.0.231.237, 4.4.0.1147.151, 4.4.0-1112.122, 4.4.0-231.265, 4.4.0-1147.162, 4.4.0-231.265~14.04.1, 4.4.0.231.201, 4.4.0-231.265~14.04.1, 4.4.0-1111.117, 4.4.0.231.201, 4.4.0.1111.108.
How do I fix this vulnerability?
To fix this vulnerability, update your Linux kernel to version 4.4.0.231.237, 4.4.0.1147.151, 4.4.0-1112.122, 4.4.0-231.265, 4.4.0-1147.162, 4.4.0-231.265~14.04.1, 4.4.0.231.201, 4.4.0-231.265~14.04.1, 4.4.0-1111.117, 4.4.0.231.201, or 4.4.0.1111.108 depending on the affected version.

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