CVE-2023-50927

Insufficient boundary checks for DIO and DAO messages in RPL-Lite in Contiki-NG

Description

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can trigger out-of-bounds reads in the RPL-Lite implementation of the RPL protocol in the Contiki-NG operating system. This vulnerability is caused by insufficient control of the lengths for DIO and DAO messages, in particular when they contain RPL sub-option headers. The problem has been patched in Contiki-NG 4.9. Users are advised to upgrade. Users unable to upgrade should manually apply the code changes in PR #2484.

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.32%
Vendor Advisory github.com
Affected: contiki-ng contiki-ng
Published at:
Updated at:

References

Link Tags
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9423-rgj4-wjfw vendor advisory
https://github.com/contiki-ng/contiki-ng/pull/2484 issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-50927?
CVE-2023-50927 has been scored as a high severity vulnerability.
How to fix CVE-2023-50927?
To fix CVE-2023-50927, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-50927 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-50927 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-50927?
CVE-2023-50927 affects contiki-ng contiki-ng.
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