Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-08-04T20:25:16

Updated: 2024-08-03T23:33:55.883Z

Reserved: 2021-05-12T00:00:00

Link: CVE-2021-32771

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-08-04T21:15:07.907

Modified: 2024-11-21T06:07:42.533

Link: CVE-2021-32771

cve-icon Redhat

No data.