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Vulnerability DatabaseCVE-2023-53334
CVE-2023-53334:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2023-53334 is a memory leak vulnerability discovered in the Linux kernel's USB chipidea driver. The issue was identified when using debugfs_lookup() without properly calling dput() on the result, causing memory to leak over time (NVD).
Technical details
The vulnerability occurs in the USB chipidea driver of the Linux kernel. When calling debugfslookup(), the function result must have dput() called on it to prevent memory leaks. The fix involves replacing the problematic code with debugfslookupandremove() which handles all the cleanup logic in a single call (Ubuntu).
Impact
The vulnerability results in a memory leak that gradually consumes system memory over time when using the affected USB chipidea driver functionality (NVD).
Mitigation and workarounds
The issue has been fixed in various Linux distributions. Ubuntu has released patches for multiple versions including Ubuntu 22.04 LTS (version 5.15.0-79.86) and Ubuntu 20.04 LTS (version 5.15.0-79.86~20.04.2). The fix involves using debugfslookupandremove() instead of the original debugfslookup() implementation (Ubuntu).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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