ARM: davinci: da850-evm: Avoid NULL pointer dereference in Kernel
Summary
GSD-2022-1002388: ARM: davinci: da850-evm: Avoid NULL pointer dereference. Affects Kernel versions >= bae105879f2f2404155da6f50b3636193d228a62, < a12b356d45cbb6e8a1b718d1436b3d6239a862f3. No fix is published. How to fix ↓
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Background
The Kernel is a fundamental component of the Linux operating system. It provides essential services and functions to enable the proper functioning of hardware and software. The ARM davinci da850-evm platform is supported by the Kernel and is commonly used in embedded systems. This vulnerability specifically affects the da850-evm platform and involves a NULL pointer dereference.
Vulnerability Detail
The vulnerability in the ARM davinci da850-evm platform allows for a NULL pointer dereference. This occurs when a program attempts to access a memory location that is set to NULL, resulting in a crash or potential code execution. An attacker could potentially exploit this vulnerability to cause a denial-of-service (DoS) condition or execute arbitrary code with kernel privileges. The vulnerability was introduced in version v2.6.33 of the Linux Kernel and has been fixed in version v4.14.276.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If updating the Kernel is not immediately feasible, a possible workaround is to disable or remove any software or modules that rely on the da850-evm platform. This can help mitigate the risk of exploitation by limiting the attack surface. However, it is strongly recommended to update to the latest Kernel version as soon as possible.
Conclusion
The ARM davinci da850-evm platform is vulnerable to a NULL pointer dereference in the Linux Kernel. This vulnerability can potentially lead to a denial-of-service condition or arbitrary code execution. It is crucial to update the Kernel to version v4.14.276 or later to mitigate the risk. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
A NULL pointer dereference occurs when a program attempts to access a memory location that is set to NULL. This can lead to a crash or potential code execution.
The vulnerability can potentially be exploited by an attacker to cause a denial-of-service (DoS) condition or execute arbitrary code with kernel privileges.
The vulnerability was introduced in version v2.6.33 of the Linux Kernel. Versions prior to v4.14.276 are affected.
To update the Linux Kernel, obtain the latest version of the source code from the official repository and compile it for the da850-evm platform. Detailed instructions can be found in the Kernel documentation.
If updating the Kernel is not immediately feasible, a workaround is to disable or remove software or modules that rely on the da850-evm platform. However, updating to the latest Kernel version is strongly recommended.
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