Description
Contiki-NG is an open-source, cross-platform operating system for IoT devices. In the RPL-Classic routing protocol implementation in the Contiki-NG operating system, an incoming DODAG Information Option (DIO) control message can contain a prefix information option with a length parameter. The value of the length parameter is not validated, however, and it is possible to cause a buffer overflow when copying the prefix in the set_ip_from_prefix function. This vulnerability affects anyone running a Contiki-NG version prior to 4.7 that can receive RPL DIO messages from external parties. To obtain a patched version, users should upgrade to Contiki-NG 4.7 or later. There are no workarounds for this issue.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_confirm
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9rm9-3phh-p4wm
Third Party Advisory x_refsource_misc
https://github.com/contiki-ng/contiki-ng/pull/1589
Patch, Third Party Advisory x_refsource_misc
https://github.com/contiki-ng/contiki-ng/pull/1589/commits/4fffab0e632c4d01910fa957d1fd9ef321eb87d2
Scores
CVSS v3
8.1
EPSS
0.0061
EPSS Percentile
69.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-120
Status
published
Products (1)
contiki-ng/contiki-ng
< 4.7
Published
Aug 04, 2022
Tracked Since
Feb 18, 2026