CVE-2023-28116: Buffer Overflow
First published: Fri Mar 17 2023(Updated: )
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.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Contiki-ng Contiki-ng | <=4.8 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-28116?
CVE-2023-28116 is a vulnerability in the Contiki-NG operating system that can lead to an out-of-bounds write in the BLE L2CAP module.
How severe is CVE-2023-28116?
CVE-2023-28116 has a severity rating of 9.8, which is considered critical.
How does CVE-2023-28116 affect Contiki-NG?
CVE-2023-28116 affects Contiki-NG versions up to and including 4.8.
How can I fix CVE-2023-28116?
To fix CVE-2023-28116, consider updating to a version of Contiki-NG that is higher than 4.8.
Where can I find more information about CVE-2023-28116?
You can find more information about CVE-2023-28116 in the Contiki-NG GitHub repository and the associated security advisories.
- collector/nvd-index
- vendor/contiki-ng
- canonical/contiki-ng contiki-ng
- version/contiki-ng contiki-ng/4.8