Null Pointer Dereference in net/x25 Package
Summary
GSD-2022-1002228: net/x25: Fix null-ptr-deref caused by x25_disconnect. Affects Kernel versions >= 69cd304cfa5cfb0f130488af579c143382432766, < 9acf05b4e7b55fdb712ef7b331dbce5bcd391d0f. No fix is published. How to fix ↓
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Background
The net/x25 package is a part of the Linux Kernel ecosystem and is responsible for handling X.25 network protocol connections. X.25 is a widely used protocol suite for packet-switched networks. The net/x25 package provides the necessary functionality for establishing and managing X.25 connections within the Linux Kernel. However, a vulnerability has been discovered in the package that can lead to a null pointer dereference.
Vulnerability Detail
The vulnerability in the net/x25 package is caused by a null pointer dereference when executing the x25_disconnect function. This vulnerability can be exploited by an attacker to crash the system or potentially execute arbitrary code. The null pointer dereference occurs due to improper handling of certain network events during the disconnection process. It is important to note that the impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been mentioned for this vulnerability.
Conclusion
The net/x25 package in the Linux Kernel is vulnerable to a null pointer dereference, which can lead to system crashes or potential code execution. It is crucial to update the Linux Kernel to the latest version, v5.4.189, to fix this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The net/x25 package is a component of the Linux Kernel that handles X.25 network protocol connections.
X.25 is a widely used protocol suite for packet-switched networks.
A null pointer dereference occurs when a program attempts to access or manipulate memory using a null pointer, resulting in a crash or potential code execution.
The potential consequences of this vulnerability include system crashes and potential execution of arbitrary code by an attacker.
No, the impact and attack plausibility of this vulnerability have not been proven yet.
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