Buffer overflow in Dronecode Px4 Drone Autopilot
CVE-2023-46256
PX4-Autopilot provides PX4 flight control solution for drones. In versions 1.14.0-rc1 and prior, PX4-Autopilot has a heap buffer overflow vulnerability in the parser function due to the absence of `parserbuf_index` value checking. A malfunction of the sensor device can cause a heap buffer overflow with leading unexpected drone behavior. Malicious applications can exploit the vulnerability even if device sensor malfunction does not occur. Up to the maximum value of an `unsigned int`, bytes sized data can be written to the heap memory area. As of time of publication, no fixed version is available.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.006 (48.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Dronecode Px4 Drone Autopilot — versions 1.14.0
- Px4 Px4-Autopilot — versions <= 1.14.0-rc1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/PX4/PX4-Autopilot/security/advisories/GHSA-5hvv-q2r5-rppw (Exploit, Vendor Advisory)
- github.com/PX4/PX4-Autopilot/blob/main/src/drivers/distance_sensor/lightware_la… (Product)
Frequently asked questions
- What is CVE-2023-46256?
- CVE-2023-46256 is a medium-severity vulnerability in Dronecode Px4 Drone Autopilot, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.4/10. Published 2023-10-31.
- How severe is CVE-2023-46256?
- Medium severity. CVSS v3 base score is 4.4 out of 10.
- Is CVE-2023-46256 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.