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CVE-2023-28116

8.1
HIGHCVSS v3.1 Base Score
0.55%
LOW RiskEPSS (68th percentile)

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.

Published: 3/17/2023
Modified: 11/21/2024
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Vulnerability Summary

CVSS v3 Score

8.1HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score (Exploitation Probability)

0.55%LOW Exploitation Risk
68th percentile

This vulnerability has a 0.55% probability of being exploited in the next 30 days, ranking higher than 68% of all scored CVEs.

CWE Classification

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Same Weakness Type(CWE-120)

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Similar SeverityHIGH