Memory Leak Vulnerability in Linux Kernel's USB Gadget - CVE-2023-53407
Summary
CVE-2023-53407: In the Linux kernel, the following vulnerability has been resolved: USB: gadget: pxa27x_udc: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise t... Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux kernel is the core component of many operating systems, responsible for managing hardware resources and providing essential services to software applications. It supports a wide range of functionalities, including device management, process scheduling, and memory management. This vulnerability specifically affects the USB gadget subsystem, which allows devices to act as USB peripherals. The issue arises from improper handling of memory allocation, leading to potential memory leaks over time.
Vulnerability Detail
CVE-2023-53407 is a vulnerability in the Linux kernel related to the USB gadget subsystem. The problem originates from the improper use of the debugfs_lookup() function, which does not call dput() on the result, resulting in a memory leak. This leak can accumulate over time, potentially exhausting system memory and leading to degraded performance or system crashes. The vulnerability affects multiple Debian versions, including Debian 11, 12, 13, and 14, and has been fixed in version 6.1.20-1.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the patch by updating the package to the fixed version.
Conclusion
CVE-2023-53407 is a significant vulnerability in the Linux kernel affecting the USB gadget subsystem, leading to memory leaks. Users are advised to update their systems to the patched version to mitigate potential risks. Utilizing tools like Vulert can help in monitoring for such vulnerabilities in real-time.
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FAQ
CVE-2023-53407 is a vulnerability in the Linux kernel that causes a memory leak in the USB gadget subsystem due to improper handling of memory allocation.
Debian versions 11, 12, 13, and 14 are affected by this vulnerability.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
The memory leak can lead to system performance degradation, exhaustion of system memory, and potential system crashes over time.
You can update the Linux package by running the following commands in your terminal: sudo apt-get update sudo apt-get install linux=6.1.20-1
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