Vulnerability in Kernel: memcpy() overflow of qed_dcbx_params()
Summary
GSD-2021-1001112: net: qed: Fix memcpy() overflow of qed_dcbx_params(). Affects Kernel versions < 144ca5c30c7a97d0c37c404c157db1b1358e2fcf. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that provides core functionalities and acts as an interface between the hardware and software layers. It manages system resources, facilitates communication between processes, and handles device drivers. The vulnerability in question affects the qed module within the Kernel, specifically the memcpy() function used in qed_dcbx_params().
Vulnerability Detail
The vulnerability arises from an overflow in the memcpy() function within the qed_dcbx_params() code. This overflow can potentially be exploited by an attacker to execute arbitrary code or cause a denial-of-service condition. 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 v4.19.196 by commit 144ca5c30c7a97d0c37c404c157db1b1358e2fcf.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
In conclusion, the Kernel vulnerability involving the memcpy() overflow in qed_dcbx_params() has been identified and fixed in Linux Kernel version v4.19.196. It is crucial to update the Kernel to the fixed version to mitigate any potential risks. For more information and assistance, please contact DevNack.com.
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FAQ
The impact of this vulnerability is currently unknown, as its attack plausibility has not been proven. However, if successfully exploited, it could lead to arbitrary code execution or a denial-of-service condition.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will analyze and alert you in real-time if any open-source vulnerabilities, including this one, are detected.
You can find more information about this vulnerability in the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and the Cloud Security Alliance GSD Database (https://github.com/cloudsecurityalliance/gsd-database).
For further support on vulnerability remediation, you can reach out to info@devnack.com.
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