Vulnerability in isdn: mISDN: netjet: Fix crash in nj_probe

Kernel Updated 02 Oct 2025

Summary

30/06/2021
N/A
No i
Unrated
Not published

GSD-2021-1000851: isdn: mISDN: netjet: Fix crash in nj_probe:. Affects Kernel versions < a0a37e4454ca1c0b424edc2c9c2487c2c46a1be6. No fix is published. How to fix ↓

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Background

The isdn package is a component of the Linux Kernel, which is responsible for managing ISDN (Integrated Services Digital Network) connections. It provides the necessary drivers and protocols for ISDN devices to communicate with the operating system. The mISDN subsystem within the isdn package handles the low-level functionality of ISDN cards. One of the drivers included in mISDN is netjet, which is used for NetJet ISDN cards. These cards allow users to connect their computers to ISDN networks for data and voice communication.

Vulnerability Detail

A vulnerability has been discovered in the netjet driver of the mISDN subsystem. The vulnerability, identified as GSD-2021-1000851, can lead to a crash in the nj_probe function. The exact cause and impact of the crash have not been determined yet. However, it is important to note that this vulnerability could potentially be exploited by an attacker to disrupt ISDN communication or execute arbitrary code on a vulnerable system. The vulnerability has been fixed in the Linux Kernel version v4.14.237 through commit a0a37e4454ca1c0b424edc2c9c2487c2c46a1be6.

How To Fix

No fixed version is published for this vulnerability.

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Conclusion

In conclusion, a vulnerability has been identified in the netjet driver of the mISDN subsystem in the isdn package. This vulnerability can potentially lead to a crash and may have adverse effects on ISDN communication. It is crucial to update the Linux Kernel to the fixed version to mitigate the risk. For further support and assistance in vulnerability remediation, please contact DevNack.com.

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FAQ

The isdn package is a component of the Linux Kernel that handles ISDN connections and provides drivers for ISDN devices.

The mISDN subsystem is a part of the isdn package that handles the low-level functionality of ISDN cards.

The netjet driver is a driver included in the mISDN subsystem that is used for NetJet ISDN cards.

The exact impact of this vulnerability is not yet known. However, it could potentially lead to a crash in the nj_probe function, which may disrupt ISDN communication or allow for arbitrary code execution.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.14.237 or later.

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How To Fix

No fixed version is published for this vulnerability.

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