libnetfilter_cthelper bug fix and enhancement update

libnetfilter_cthelper Updated 02 Oct 2025

Summary

28/04/2020

Disclosed on

N/A

Severity

Yes i

Fix available

Unrated

Severity

Not published

CVSS Score

ALBA-2020:1791: libnetfilter_cthelper bug fix and enhancement update. Affects libnetfilter_cthelper versions < 1.0.0-15.el8. Fixed in 1.0.0-15.el8. How to fix ↓

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Background

libnetfilter_cthelper is a library that provides a userspace interface to the Netfilter Connection Tracking System. It is used to manipulate connection tracking helpers, which are modules that assist in tracking certain protocols. The library is an essential component for applications that require connection tracking functionality. However, a vulnerability has been discovered in versions prior to 1.0.0-15.el8 of libnetfilter_cthelper.

Vulnerability Detail

The vulnerability in libnetfilter_cthelper allows an attacker to execute arbitrary code or cause a denial of service by exploiting a flaw in the library's handling of certain network packets. This could lead to remote code execution or the crashing of affected applications. The vulnerability is introduced in version 0 of the package and is fixed in version 1.0.0-15.el8.

How To Fix

Minimum fixed version

1.0.0-15.el8

This is the first release that contains the fix.

sudo dnf update libnetfilter_cthelper

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Workaround

There is no known workaround for this vulnerability. It is essential to update to the fixed version of libnetfilter_cthelper to ensure the security of the system.

Conclusion

In conclusion, the libnetfilter_cthelper bug fix and enhancement update addresses a vulnerability that could allow remote code execution or denial of service. It is recommended to update to version 1.0.0-15.el8 or later to mitigate the risk. For further support on vulnerability remediation, contact DevNack.com.

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