Vulnerability Monitor

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CVE-2021-32771

Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615.

Published

2022-08-04T21:15:07.907

Last Modified

2024-11-21T06:07:42.533

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.1 (HIGH)

Weaknesses

Type: Primary
CWE-120

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	contiki-ng	contiki-ng	< 4.8	Yes

References

https://github.com/contiki-ng/contiki-ng/pull/1615 Patch, Third Party Advisory ([email protected])
https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f Patch, Third Party Advisory ([email protected])
https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8 Third Party Advisory ([email protected])
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w Third Party Advisory ([email protected])
https://github.com/contiki-ng/contiki-ng/pull/1615 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)