Buffer Overflow Vulnerability in wl1251_cmd_scan
Summary
GSD-2021-1001488: wl1251: Fix possible buffer overflow in wl1251_cmd_scan. Affects Kernel versions < 57ad99ae3c6738ba87bad259bb57c641ca68ebf6. No fix is published. How to fix ↓
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Background
The wl1251 package is a wireless LAN driver for Texas Instruments wl1251 chipsets. It is used in the Linux Kernel and provides functionality for wireless communication. The vulnerability in the wl1251_cmd_scan function can lead to a buffer overflow, potentially allowing an attacker to execute arbitrary code or crash the system.
Vulnerability Detail
The vulnerability in wl1251_cmd_scan arises from a possible buffer overflow. If an attacker can control the input to the function, they can exceed the bounds of the buffer and overwrite adjacent memory. This can lead to various consequences, such as executing malicious code, crashing the system, or escalating privileges. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability has been fixed in Linux Kernel version v4.4.276 by commit 57ad99ae3c6738ba87bad259bb57c641ca68ebf6.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The buffer overflow vulnerability in wl1251_cmd_scan can pose a significant security risk, potentially allowing an attacker to execute arbitrary code or crash the system. It is crucial to update the Linux Kernel to version v4.4.276 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability can vary depending on the attacker's capabilities. It could potentially allow an attacker to execute arbitrary code, crash the system, or escalate privileges.
You can check the version of the Linux Kernel installed on your system. If it is earlier than v4.4.276, your system may be vulnerable. You can also use tools like Vulert Playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability.
As of now, there is no known exploit for this vulnerability. However, it is always recommended to apply security patches and updates to mitigate the risk.
To exploit this vulnerability, an attacker would need the ability to control the input to the wl1251_cmd_scan function. This could be achieved through various means, such as sending specially crafted network packets.
Yes, this vulnerability can be exploited remotely if the attacker can send malicious input to the vulnerable function over the network.
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