Out-of-bounds Read in Contiki-Ng
CVE-2023-50927
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.
Vulnerability class: Buffer Overflow
EPSS: 0.005 (40.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Contiki-ng — versions < 4.9
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2023-50927?
- CVE-2023-50927 is a high-severity vulnerability in Contiki-Ng, classified under Out-of-bounds Read. CVSS score: 8.6/10. Published 2024-02-14.
- How severe is CVE-2023-50927?
- High severity. CVSS v3 base score is 8.6 out of 10.