Vulnerability Description
Contiki-NG is an open-source, cross-platform operating system for internet of things (IoT) devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system. The network stack of Contiki-NG uses a global buffer (packetbuf) for processing of packets, with the size of PACKETBUF_SIZE. In particular, when using the BLE L2CAP module with the default configuration, the PACKETBUF_SIZE value becomes larger then the actual size of the packetbuf. When large packets are processed by the L2CAP module, a buffer overflow can therefore occur when copying the packet data to the packetbuf. The vulnerability has been patched in the "develop" branch of Contiki-NG, and will be included in release 4.9. The problem can be worked around by applying the patch manually.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Contiki-Ng | Contiki-Ng | <= 4.8 |
Related Weaknesses (CWE)
References
- https://github.com/contiki-ng/contiki-ng/pull/2398Issue TrackingPatch
- https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqpPatchVendor Advisory
- https://github.com/contiki-ng/contiki-ng/pull/2398Issue TrackingPatch
- https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqpPatchVendor Advisory
FAQ
What is CVE-2023-28116?
CVE-2023-28116 is a vulnerability with a CVSS score of 8.1 (HIGH). Contiki-NG is an open-source, cross-platform operating system for internet of things (IoT) devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-N...
How severe is CVE-2023-28116?
CVE-2023-28116 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-28116?
Check the references section above for vendor advisories and patch information. Affected products include: Contiki-Ng Contiki-Ng.