CVE-2021-21410 (GCVE-0-2021-21410)

Vulnerability from cvelistv5 – Published: 2021-06-18 21:00 – Updated: 2024-08-03 18:09
VLAI?
Title
Out-of-bounds read in the 6LoWPAN implementation
Summary
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.
Severity ?
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
CWE
Assigner
References
Impacted products
Vendor Product Version
contiki-ng contiki-ng Affected: <= 4.6
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