Buffer overrun vulnerability in wlcore package
Summary
GSD-2021-1000232: wlcore: Fix buffer overrun by snprintf due to incorrect buffer size. Affects Kernel versions >= f5f2fd30be85a5dd71856e09db9623385e61590f, < 7748383030f2dbffde9b4c24d0a899a7c0c621e8. No fix is published. How to fix ↓
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Background
The wlcore package is a component of the Linux Kernel ecosystem. It provides support for wireless LAN (WLAN) devices. The package includes drivers and firmware for various WLAN chipsets. The vulnerability in question arises from an incorrect buffer size used in the snprintf function, leading to a buffer overrun.
Vulnerability Detail
The vulnerability allows an attacker to overwrite adjacent memory locations by exploiting the buffer overrun in the wlcore package. This could potentially lead to arbitrary code execution, denial of service, or information disclosure. The issue was introduced in version v5.12.4 of the Linux Kernel and was fixed in version v5.12.4 by commit 7748383030f2dbffde9b4c24d0a899a7c0c621e8. The vulnerability was identified and reported by an automated security analysis tool, and its impact and attack plausibility have not been proven.
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 overrun vulnerability in the wlcore package can have serious security implications, including arbitrary code execution, denial of service, and information disclosure. It is crucial to update the Linux Kernel to version v5.12.4 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability could potentially allow an attacker to execute arbitrary code, cause denial of service, or disclose sensitive information.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the tool will provide real-time alerts for open-source vulnerabilities.
As of now, there is no known exploit for this vulnerability. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
No, only versions starting from v5.12.4 of the Linux Kernel are affected. Versions prior to this are not impacted by the vulnerability.
The vulnerability was identified and reported by an automated security analysis tool. The actual impact and attack plausibility have not yet been proven.
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