Buffer Overflow in strlen Function in ocfs2 Mount

Kernel Updated 02 Oct 2025

Summary

14/11/2021

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2021-1001959: ocfs2: mount fails with buffer overflow in strlen. Affects Kernel versions < 232ed9752510de4436468b653d145565669c8498. No fix is published. How to fix ↓

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Background

The ocfs2 package is a file system implementation for the Linux kernel. It provides a distributed file system that allows multiple nodes to access shared storage. The ocfs2 file system is commonly used in clustered environments to enable high availability and scalability. 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 occurs during the mount process of ocfs2. When processing certain input, the strlen function is called without proper bounds checking, leading to a buffer overflow. An attacker could exploit this vulnerability by crafting a malicious input that exceeds the buffer size, potentially allowing them to execute arbitrary code or crash the system. The impact and attack plausibility of this vulnerability have not been proven yet.

How To Fix

No fixed version is published for this vulnerability.

The vulnerability has been fixed in Linux Kernel version v4.14.253 by commit 232ed9752510de4436468b653d145565669c8498. To fix the vulnerability, users should update their Linux Kernel to version v4.14.253 or later. It is recommended to regularly update the kernel to ensure the latest security patches are applied.

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Workaround

There is no specific workaround mentioned for this vulnerability. The recommended solution is to update the Linux Kernel to the fixed version.

Conclusion

The ocfs2 mount process vulnerability, which can lead to a buffer overflow in the strlen function, has been identified. It is recommended to update the Linux Kernel to version v4.14.253 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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