Vulnerability · Published Nov 13, 2023 · Assigned by GitHub_M

CVE-2023-47625Global Buffer Overflow leading to denial of service in PX4-Autopilot

Low 2.9

In plain English

A low-severity buffer overflow in PX4-Autopilot from PX4. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)2.9Low

Exploit odds (30 days)0.5%top 55.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

PX4 autopilot is a flight control solution for drones. In affected versions a global buffer overflow vulnerability exists in the CrsfParser_TryParseCrsfPacket function in /src/drivers/rc/crsf_rc/CrsfParser.cpp:298 due to the invalid size check. A malicious user may create an RC packet remotely and that packet goes into the device where the _rcs_buf reads. The global buffer overflow vulnerability will be triggered and the drone can behave unexpectedly. This issue has been addressed in version 1.14.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
PX4	PX4-Autopilot	< 1.14.0

Weakness: CWE-120 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References

https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-qpw7-65ww-wj82 x_refsource_CONFIRM
https://github.com/PX4/PX4-Autopilot/commit/d1fcd39a44e6312582c6ab02b0d5ee2599fb55aa x_refsource_MISC