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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (41.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Contiki-Ng — versions < 4.9
Weakness classification (CWE)
References
- github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9423-rgj4-wjfw (Vendor Advisory)
- github.com/contiki-ng/contiki-ng/pull/2484 (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.