Vulnerability in cfg80211: Fix Management Registrations Locking
Summary
UVI-2021-1002191: cfg80211: fix management registrations locking. Affects Kernel versions >= 6cd536fe62ef58d7c4eac2da07ab0ed7fd19010d, < 09b1d5dc6ce1c9151777f6c4e128a59457704c97. No fix is published. How to fix ↓
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Background
The cfg80211 package is a component of the Linux Kernel that provides the framework for wireless LAN (WLAN) drivers. It handles the management of WLAN devices, including scanning, connecting, and configuring wireless networks. The package is crucial for the proper functioning of wireless networking on Linux systems.
Vulnerability Detail
The vulnerability identified as UVI-2021-1002191 in cfg80211 involves a locking issue related to management registrations. The specific flaw was introduced in version v5.8 of the Linux Kernel and fixed in version v5.15. An attacker could potentially exploit this vulnerability to cause a denial-of-service (DoS) condition or execute arbitrary code with kernel privileges. 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 workaround has been provided for this vulnerability.
Conclusion
In conclusion, the cfg80211 package in the Linux Kernel is vulnerable to a locking issue in management registrations. This vulnerability can potentially lead to a denial-of-service (DoS) condition or arbitrary code execution with kernel privileges. It is crucial to update the Linux Kernel to version v5.15 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
cfg80211 is a component of the Linux Kernel that handles the management of wireless LAN devices and provides the framework for WLAN drivers.
The impact of this vulnerability could range from a denial-of-service (DoS) condition to the execution of arbitrary code with kernel privileges.
To fix this vulnerability, update your Linux Kernel to version v5.15 or later, which includes the necessary fix for the locking issue in management registrations.
No workaround has been provided for this vulnerability.
For more details about this vulnerability, you can refer to the Open Source Vulnerability database entry UVI-2021-1002191.
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