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CVE-2023-28116

8.1 · HIGH

Contiki-NG is an open-source, cross-platform operating system for internet of things (IoT) devices.

Published Mar 17, 2023CWE-120EPSS 0.69%

Overview

CVE-2023-28116 is a high-severity vulnerability. It was published on March 17, 2023 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/contiki-ng/contiki-ng/pull/2398GitHubgithub.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqpGitHubgithub.com/contiki-ng/contiki-ng/pull/2398GitHubgithub.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp

How CyberStrike helps

Frequently asked questions

What is CVE-2023-28116?

CVE-2023-28116 is a high-severity vulnerability. It was published on March 17, 2023 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2023-28116?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-28116?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-28116?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-28116 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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