CVE-2021-21410
on github
Published
Severity
CVSS v3:
9.1 CRITICAL
CVSS v2:
6.4 MEDIUM
Description
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds read can be triggered by 6LoWPAN packets sent to devices running Contiki-NG 4.6 and prior. The IPv6 header decompression function (<code>uncompress_hdr_iphc</code>) does not perform proper boundary checks when reading from the packet buffer. Hence, it is possible to construct a compressed 6LoWPAN packet that will read more bytes than what is available from the packet buffer. As of time of publication, there is not a release with a patch available. Users can apply the patch for this vulnerability out-of-band as a workaround.
References
Configurations
CPE23 | Version Start | Version End | Exact Version |
---|---|---|---|
cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:* | n/a | 4.6 (including) | * |