GSD-2021-1001422: Vulnerability in jfs package - GPF in diFree
Summary
GSD-2021-1001422: jfs: fix GPF in diFree. Affects Kernel versions < 49def1b0644892e3b113673c13d650c3060b43bc. 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 jfs package is a component of the Linux Kernel, which is responsible for providing support for the Journaled File System (JFS). JFS is a high-performance file system designed for use on modern, large-scale storage devices. It offers features such as journaling, efficient disk space utilization, and fast recovery after system crashes. However, a vulnerability has been discovered in the jfs package that can lead to a General Protection Fault (GPF) in the diFree function.
Vulnerability Detail
The vulnerability in the jfs package arises from a flaw in the diFree function. This flaw can be exploited by an attacker to trigger a GPF, potentially leading to a denial of service (DoS) condition or even remote code execution. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability has been fixed in the Linux Kernel version v4.14.240 by commit 49def1b0644892e3b113673c13d650c3060b43bc.
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 →
Conclusion
The jfs package in the Linux Kernel is vulnerable to a GPF in the diFree function. This vulnerability can potentially lead to a denial of service (DoS) condition or remote code execution. It is crucial to update the Linux Kernel to version v4.14.240 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The jfs package is a component of the Linux Kernel that provides support for the Journaled File System (JFS). JFS is a high-performance file system designed for use on modern, large-scale storage devices.
A General Protection Fault (GPF) is a type of error that occurs when a program attempts to perform an illegal operation or access memory that it is not allowed to access. It typically results in the termination of the program and may cause system instability.
The potential consequences of this vulnerability include denial of service (DoS) conditions and the possibility of remote code execution. However, the actual impact and attack plausibility have not been proven yet.
Yes, this vulnerability has been fixed in the Linux Kernel version v4.14.240 by commit 49def1b0644892e3b113673c13d650c3060b43bc.
To fix this vulnerability, you can update the Linux Kernel to version v4.14.240 or later by pulling the latest changes from the official Linux Kernel repository and rebuilding/reinstalling the kernel on the affected system.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
