Out-of-bounds bug in ngene_command_config_free_buf() in Kernel
Summary
GSD-2021-1001400: media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf(). Affects Kernel versions >= dae52d009fc950b5c209260d50fcc000f5becd3c, < e818f2ff648581a6c553ae2bebc5dcef9a8bb90c. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages the system's resources and facilitates communication between hardware and software. It provides essential functionalities such as process management, memory management, and device drivers. The ngene module within the Kernel is responsible for handling media-related operations. However, a vulnerability has been identified in the ngene_command_config_free_buf() function, which can lead to an out-of-bounds bug.
Vulnerability Detail
The ngene_command_config_free_buf() function in the ngene module of the Kernel suffers from an out-of-bounds bug. This vulnerability was introduced in version v2.6.34 of the Kernel and has been present until version v4.14.241. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service (DoS) condition. The bug occurs when processing certain commands, leading to a buffer overflow or accessing memory beyond the allocated boundaries. This can result in data corruption, system crashes, or even remote code execution.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can disable or unload the ngene module if it is not required for their system's functionality. This can be achieved by executing the following command as root:
rmmod ngene
However, it is important to note that disabling the ngene module may impact media-related operations and functionalities.
Conclusion
The out-of-bounds bug in ngene_command_config_free_buf() within the Kernel poses a significant security risk, potentially allowing attackers to execute arbitrary code or cause a denial-of-service condition. It is crucial to update the Linux Kernel to version v4.14.241 or later to address this vulnerability. Disabling the ngene module can serve as a temporary workaround, but it may impact media-related operations. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can potentially allow an attacker to execute arbitrary code or cause a denial-of-service (DoS) condition. It may lead to data corruption, system crashes, or remote code execution.
You can use Vulert's playground at Vulert Scanner to check if your system is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
Yes, a patch for this vulnerability is available in version v4.14.241 of the Linux Kernel. It is recommended to update your Kernel to this version or later to mitigate the risk.
Yes, as a temporary workaround, you can disable or unload the ngene module if it is not required for your system's functionality. However, this may impact media-related operations and functionalities.
At the time of this report, there are no known public exploits specifically targeting this vulnerability. However, it is always recommended to apply security patches and updates to mitigate potential risks.
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