Description: Contiki-NG is an open-source, cross-platform operating system for internet of things devices. It is possible to cause an out-of-bounds write in versions of Contiki-NG prior to 4.6 when transmitting a 6LoWPAN packet with a chain of extension headers. Unfortunately, the written header is not checked to be within the available space, thereby making it possible to write outside the buffer. The problem has been patched in Contiki-NG 4.6. Users can apply the patch for this vulnerability out-of-band as a workaround.
CVE-2021-21280
Published Date: 2021-06-18T21:15Z
Last Modified: 2021-06-22T19:25Z
CVSS Score: 9.8 (CRITICAL)
EPSS Score: 0.35%
Risk Score: 6.86 (HIGH)
Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.
CVSS:
9.8 |
EPSS:
0.35%
Mitre ATT&CK Technical v15.1
T1153 – Source
T1053.002 – At
Technical Analysis & Mitigation Measures
Reference Links
Vendor - Produce - Version
contiki-ng - contiki-ng
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