| タイトル | PX4 Autopilot main branch Stack-based Buffer Overflow |
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| 説明 | A stack-buffer-overflow vulnerability exists in PX4’s mavlink_log_handler.cpp/.h when handling logs: LogEntry.filepath is a fixed-size buffer (~60 bytes), but logdata.txt parsing uses sscanf(..., "%s", entry->filepath) without a width limit, so an overly long filename/path token can overflow the stack and crash. In practice this is remotely triggerable via the FTP microservice: an attacker creates a log file in the log directory with an excessively long filename, then sends LOG_REQUEST_LIST (receiving LOG_ENTRY) followed by LOG_REQUEST_DATA; when the handler processes the long filename during log access/parsing, the unbounded %s write overflows LogEntry.filepath, leading to a remote denial-of-service and potentially more severe memory-corruption impact. |
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| ソース | ⚠️ https://github.com/PX4/PX4-Autopilot/issues/26118 |
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| ユーザー | Fuzz0X (UID 93056) |
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| 送信 | 2025年12月17日 03:37 (4 月 ago) |
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| モデレーション | 2025年12月27日 14:39 (10 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 338527 [PX4 PX4-Autopilot 迄 1.16.0 mavlink_log_handler.cpp log_entry_from_id メモリ破損] |
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| ポイント | 20 |
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