Vulnerabilities > CVE-2021-21281 - Unspecified vulnerability in Contiki-Ng

CVSS 9.8 - CRITICAL

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

HIGH

Integrity impact

HIGH

Availability impact

HIGH

network

low complexity

contiki-ng

critical

NVD

Published: 2021-06-18

Updated: 2024-11-21

Summary

Contiki-NG is an open-source, cross-platform operating system for internet of things devices. A buffer overflow vulnerability exists in Contiki-NG versions prior to 4.6. After establishing a TCP socket using the tcp-socket library, it is possible for the remote end to send a packet with a data offset that is unvalidated. The problem has been patched in Contiki-NG 4.6. Users can apply the patch for this vulnerability out-of-band as a workaround.

Vulnerable Configurations

Part	Description	Count
OS	Contiki-Ng Contiki NG Contiki NG - Contiki NG Contiki NG 2.0 Contiki NG Contiki NG 2.1 Contiki NG Contiki NG 2.2 Contiki NG Contiki NG 2.2.1 Contiki NG Contiki NG 2.2.2 Contiki NG Contiki NG 2.2.3 Contiki NG Contiki NG 2.3 Contiki NG Contiki NG 2.4 Contiki NG Contiki NG 2.5 Contiki NG Contiki NG 2.6 Contiki NG Contiki NG 2.7 Contiki NG Contiki NG 3.0 Contiki NG Contiki NG 4.0 Contiki NG Contiki NG 4.1 Contiki NG Contiki NG 4.2 Contiki NG Contiki NG 4.3 Contiki NG Contiki NG 4.4 Contiki NG Contiki NG 4.5 Contiki NG Contiki NG 4.6	21

Summary

Vulnerable Configurations

References