Vulnerability in Kernel: ntfs - Sanity Check on Allocation Size
Summary
GSD-2022-1001788: ntfs: add sanity check on allocation size. Affects Kernel versions < 24ab2d4ef52c2dbb62a60844b87fc8872383407a. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Kernel is a crucial component of the Linux operating system that acts as a bridge between the hardware and software layers. It provides essential functionalities, such as device drivers, memory management, and process scheduling. The ntfs module within the Kernel enables the support for the NTFS file system commonly used in Windows. This vulnerability specifically affects the ntfs module's handling of allocation size. The allocation size is a parameter that determines the size of disk space allocated for a file or directory. Without proper validation, an attacker could exploit this vulnerability to manipulate the allocation size and potentially cause a denial-of-service or other security issues.
Vulnerability Detail
The vulnerability arises from a lack of sanity check on the allocation size parameter within the ntfs module of the Kernel. By providing a malicious allocation size value, an attacker could trigger unexpected behavior or memory corruption. This could lead to various consequences, including system crashes, data corruption, or even remote code execution. The impact and attack plausibility of this vulnerability have not been fully proven yet, but it is crucial to address it to ensure the security and stability of the system.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a temporary workaround, users can disable the ntfs module if it is not essential for their system. This can be achieved by removing or blacklisting the module. However, this workaround should only be considered if the ntfs functionality is not required, as it may impact the system's ability to read or write NTFS file systems.
Conclusion
The vulnerability in the ntfs module of the Kernel, which lacks a sanity check on the allocation size parameter, poses potential risks to the system's stability and security. It is crucial to update the Kernel to version v5.15.33 or later to address this vulnerability. In the meantime, if the ntfs functionality is not required, users can consider disabling the module as a temporary workaround. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability can range from system crashes and data corruption to potential remote code execution. However, the exact consequences depend on the attacker's capabilities and the specific system configuration.
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 Vulert will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, there is no known exploit for this vulnerability. However, it is essential to address it promptly by updating the Kernel to prevent any potential exploitation.
While updating the Kernel is the recommended approach, you can temporarily mitigate the vulnerability by disabling the ntfs module if it is not necessary for your system. However, this should only be considered as a temporary workaround until the Kernel can be updated.
Any system that utilizes the ntfs module within the Kernel is potentially vulnerable. However, the impact may vary depending on the specific system configuration and the attacker's capabilities.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
