Buffer Overflow in strlen Function in ocfs2
Summary
GSD-2021-1001805: ocfs2: mount fails with buffer overflow in strlen. Affects Kernel versions < 7623b1035ca2d17bde0f6a086ad6844a34648df1. 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
ocfs2 is a file system implemented in the Linux Kernel. It is designed to provide shared access to a file system between multiple nodes in a cluster. The ocfs2 file system is commonly used in high-performance computing and storage environments. However, a vulnerability has been discovered in the ocfs2 mount process that can lead to a buffer overflow in the strlen function.
Vulnerability Detail
The vulnerability in ocfs2 occurs during the mount process when calculating the length of a string. Due to a lack of proper bounds checking, an attacker can provide a specially crafted string that exceeds the buffer size allocated for the string length calculation. This can result in a buffer overflow, potentially leading to arbitrary code execution or a denial of service condition. The impact and attack plausibility of this vulnerability have not yet been proven.
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 recommended to apply the fix by updating the Linux Kernel to the patched version.
Conclusion
The ocfs2 file system in the Linux Kernel is vulnerable to a buffer overflow in the strlen function during the mount process. This vulnerability has been fixed in the Linux Kernel version v4.19.214. Users are advised to update their Linux Kernel to the patched version to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
ocfs2 is a file system implemented in the Linux Kernel that provides shared access to a file system between multiple nodes in a cluster.
The impact of this vulnerability can range from arbitrary code execution to a denial of service condition, depending on the attacker's ability to exploit the buffer overflow.
No, the impact and attack plausibility of this vulnerability have not yet been proven.
To fix this vulnerability, update your Linux Kernel to version v4.19.214 or later.
No, there is no known workaround for this vulnerability. It is recommended to update the Linux Kernel to the patched version.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
