NFSD: Integer Overflow Vulnerability in Kernel
Summary
GSD-2022-1002140: NFSD: prevent integer overflow on 32 bit systems. Affects Kernel versions < 7af164fa2f1abc577d357d22d83a2f3490875d7e. 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 manages system resources and facilitates communication between hardware and software. It provides essential services such as process management, memory management, and device drivers. The Network File System Daemon (NFSD) is a component of the Kernel that enables file sharing over a network. It allows remote clients to access files on a server as if they were local. NFSD is vulnerable to an integer overflow issue on 32-bit systems.
Vulnerability Detail
The integer overflow vulnerability in NFSD on 32-bit systems can lead to a security breach. An attacker could exploit this vulnerability to execute arbitrary code or escalate privileges on the affected system. The vulnerability occurs due to a lack of proper input validation, allowing an attacker to provide a malicious input that triggers the integer overflow. This can result in unexpected behavior, including buffer overflows or memory corruption.
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
There is no known workaround for this vulnerability. It is essential to update the Kernel to the fixed version to ensure the system is secure.
Conclusion
The integer overflow vulnerability in NFSD on 32-bit systems can have severe security implications. It is crucial to update the Linux Kernel to version v5.10.110 or later to address this vulnerability. Failure to do so may result in unauthorized code execution or privilege escalation. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The vulnerability can allow an attacker to execute arbitrary code or escalate privileges on the affected system.
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 to the playground, and it will analyze and alert you if the vulnerability is present.
Yes, this vulnerability is specific to 32-bit systems. 64-bit systems are not affected.
At the time of this report, there are no known public exploits for this vulnerability. However, it is crucial to update the Kernel to the fixed version to prevent any potential exploitation.
No, updating the Kernel to the fixed version is the recommended and most effective way to mitigate this vulnerability.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
