Inappropriate pointer order of laser_scan_filter_.reset() and tf_listener_.reset() (amcl_node.cpp) in Open Robotics Robotic Operating Sytstem 2 (ROS2) and Nav2 humble versions leads to a use-after-free.
Weakness
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Nav2 | Opennav | 1.1.0 (including) | 1.1.17 (including) |
Potential Mitigations
References
- https://github.com/ros-planning/navigation2/blob/main/nav2_amcl/src/amcl_node.cpp#L331-L344
- https://github.com/ros-planning/navigation2/pull/4068
- https://github.com/ros-planning/navigation2/pull/4070
- https://github.com/ros-planning/navigation2/blob/main/nav2_amcl/src/amcl_node.cpp#L331-L344
- https://github.com/ros-planning/navigation2/pull/4068
- https://github.com/ros-planning/navigation2/pull/4070