Vulnerability · Published Jun 18, 2021 · Assigned by GitHub_M

CVE-2021-21282Buffer overflow in RPL source routing header processing

High 8.6

In plain English

A high-severity buffer overflow in contiki-ng from contiki-ng. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).

Severity (CVSS 3.1)8.6High

Exploit odds (30 days)1.0%top 37.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Contiki-NG is an open-source, cross-platform operating system for internet of things devices. In versions prior to 4.5, buffer overflow can be triggered by an input packet when using either of Contiki-NG's two RPL implementations in source-routing mode. The problem has been patched in Contiki-NG 4.5. Users can apply the patch for this vulnerability out-of-band as a workaround.

Affected products (as reported)

Vendor	Product	Versions
contiki-ng	contiki-ng	< 4.5

Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

References

https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-6xf2-77gf-fgjx x_refsource_CONFIRM
https://github.com/contiki-ng/contiki-ng/pull/1183 x_refsource_MISC