| 标题 | PX4 Autopilot main branch Stack-based Buffer Overflow |
|---|
| 描述 | 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. |
|---|
| 来源 | ⚠️ https://github.com/PX4/PX4-Autopilot/issues/26118 |
|---|
| 用户 | Fuzz0X (UID 93056) |
|---|
| 提交 | 2025-12-17 03時37分 (4 月前) |
|---|
| 管理 | 2025-12-27 14時39分 (10 days later) |
|---|
| 状态 | 已接受 |
|---|
| VulDB条目 | 338527 [PX4 PX4-Autopilot 直到 1.16.0 mavlink_log_handler.cpp log_entry_from_id 内存损坏] |
|---|
| 积分 | 20 |
|---|