Vulnerability in Kernel: f2fs_do_zero_range() Block Address Sanity Check
Summary
GSD-2022-1002614: f2fs: fix to do sanity check on block address in f2fs_do_zero_range(). Affects Kernel versions < 805b48b234a2803cb7daec7f158af12f0fbaefac. 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 critical component of the Linux operating system that provides core functionalities and interfaces between hardware and software. It manages system resources, facilitates communication between processes, and ensures security and stability. The f2fs (Flash-Friendly File System) is a file system specifically designed for NAND-based flash storage devices. It is used in Linux systems to optimize performance and reliability for flash storage. However, a vulnerability has been discovered in the f2fs_do_zero_range() function, which could potentially lead to security issues.
Vulnerability Detail
The vulnerability exists in the f2fs_do_zero_range() function of the Kernel's f2fs module. It fails to perform a sanity check on the block address, allowing an attacker to manipulate the block address and potentially cause memory corruption or other security issues. This could lead to privilege escalation, denial of service, or unauthorized access to sensitive information. The impact and attack plausibility of this vulnerability have not been proven yet.
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 this vulnerability has been fixed in the latest version of the Kernel, there is no specific workaround available. Users are advised to update their Kernel to the patched version.
Conclusion
The f2fs_do_zero_range() block address sanity check vulnerability in the Kernel's f2fs module could potentially lead to security issues, including memory corruption, privilege escalation, denial of service, or unauthorized access to sensitive information. It is crucial to update the Kernel to the latest version (v5.18.3 or later) to mitigate the risk. For additional support or assistance, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability could include memory corruption, privilege escalation, denial of service, or unauthorized access to sensitive information.
You can use Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
At the time of this report, there are no known exploits for this vulnerability. However, it is important to update your Kernel to the patched version to mitigate any potential risks.
The exact attack vector and exploitability of this vulnerability have not been proven yet. However, it is always recommended to keep your system up to date with the latest security patches to minimize the risk of remote exploitation.
For further support on vulnerability remediation or any other security concerns, you can reach out to info@devnack.com. Our team of experts will be happy to assist you.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
