CVE-2023-50927

Summary

CVE-2023-50927 is a vulnerability affecting the Contiki-NG operating system for IoT devices. This open-source, cross-platform OS has an issue with the RPL-Lite implementation of the RPL protocol, which can lead to out-of-bounds reads. The root cause is insufficient validation of message lengths, particularly when dealing with RPL sub-option headers. Attackers can exploit this vulnerability to trigger reads beyond intended memory boundaries. To mitigate the risk, users are advised to upgrade to Contiki-NG 4.9, or manually apply the code changes from PR #2484 if an upgrade isn't possible.

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