CVE-2023-46256
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.63% probability · 48th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120, CWE-122, CWE-787
- Affected
- dronecode/px4 drone autopilot
- Source
- security-advisories@github.com
References
- https://github.com/PX4/PX4-Autopilot/blob/main/src/drivers/distance_sensor/lightware_laser_serial/parser.cpp#L87Product
- https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-5hvv-q2r5-rppwExploit, Vendor Advisory
- https://github.com/PX4/PX4-Autopilot/blob/main/src/drivers/distance_sensor/lightware_laser_serial/parser.cpp#L87Product
- https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-5hvv-q2r5-rppwExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.