ipw2x00: Potential NULL dereference in libipw_xmit()
Summary
GSD-2022-1003903: ipw2x00: Fix potential NULL dereference in libipw_xmit(). Affects Kernel versions < 167affc11781d7d35c4c3a7630a549ac74dd0b21. No fix is published. How to fix ↓
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Background
The ipw2x00 package is a Linux kernel module that provides support for Intel PRO/Wireless 2100, 2200, and 2915 network adapters. It allows these wireless adapters to communicate with the operating system and connect to wireless networks. The libipw_xmit() function is responsible for transmitting data packets from the wireless adapter to the network. However, a potential vulnerability exists in this function that could lead to a NULL dereference.
Vulnerability Detail
The vulnerability in ipw2x00 arises from a potential NULL dereference in the libipw_xmit() function. If a specific condition is met, the function may attempt to dereference a NULL pointer, leading to a crash or potential privilege escalation. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in Linux Kernel version v4.19.247 by commit 167affc11781d7d35c4c3a7630a549ac74dd0b21.
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 ipw2x00 package in the Linux Kernel is vulnerable to a potential NULL dereference in the libipw_xmit() function. This vulnerability has been fixed in Linux Kernel version v4.19.247. It is recommended to update the Linux Kernel to the latest version to ensure the fix is applied. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
ipw2x00 is a Linux kernel module that provides support for Intel PRO/Wireless 2100, 2200, and 2915 network adapters.
The libipw_xmit() function is responsible for transmitting data packets from the wireless adapter to the network.
A NULL dereference occurs when a program attempts to access or dereference a memory location that has a NULL value, resulting in a crash or potential security vulnerability.
The impact of this vulnerability could range from a crash of the affected system to potential privilege escalation, depending on the specific conditions and attacker capabilities.
Yes, this vulnerability has been fixed in Linux Kernel version v4.19.247 by commit 167affc11781d7d35c4c3a7630a549ac74dd0b21.
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