Memory corruption via map subscriber shutdown race
Published Feb 20, 2024 · Updated Aug 29, 2024
Use-after-free in Nav2 AMCL in ROS 2 Humble allows remote attackers to corrupt memory by racing map delivery with shutdown. During cleanup, AmclNode frees map_ before resetting map_sub_, so a late OccupancyGrid callback reaches createFreeSpaceVector() and reads freed map memory. An attacker on the same ROS 2 DDS network must keep publishing map messages as the AMCL node shuts down; the demonstrated consequence is an AMCL process crash.
Summary
What happened
Use-after-free in Nav2 AMCL in ROS 2 Humble allows remote attackers to corrupt memory by racing map delivery with shutdown. During cleanup, AmclNode frees map_ before resetting map_sub_, so a late OccupancyGrid callback reaches createFreeSpaceVector() and reads freed map memory. An attacker on the same ROS 2 DDS network must keep publishing map messages as the AMCL node shuts down; the demonstrated consequence is an AMCL process crash.
The record
- CVE
- CVE-2024-25199
- Published
- Feb 20, 2024
- Updated
- Aug 29, 2024
- Vendor
- Open Source Robotics Foundation
- Product
- Robot Operating System (ROS)
- Classifications
- CWE-416, T1499
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 20, 2024CVE publishedPublication date reported by the CVE source.
- Aug 29, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=2
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Nav2 AMCL map-delivery shutdown-race reproductionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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