Apache NuttX RTOS: fs/vfs/fs_rename: use after free
Vulnerability Description
Use After Free vulnerability was discovered in fs/vfs/fs_rename code of the Apache NuttX RTOS, that due recursive implementation and single buffer use by two different pointer variables allowed arbitrary user provided size buffer reallocation and write to the previously freed heap chunk, that in specific cases could cause unintended virtual filesystem rename/move operation results. This issue affects Apache NuttX RTOS: from 7.20 before 12.11.0. Users of virtual filesystem based services with write access especially when exposed over the network (i.e. FTP) are affected and recommended to upgrade to version 12.11.0 that fixes the issue.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Liu, Richard Jiayang <rjliu3@illinois.edu>
- Liu, Richard Jiayang <rjliu3@illinois.edu>
- Tomek CEDRO <cederom@apache.org>
- Xiang Xiao <xiaoxiang@apache.org>
- Jiuzhu Dong <jiuzhudong@apache.org>
References
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