CVE-2021-28362 - CVE House
Back to Database
Status published High CVE-2021-28362

An issue was discovered in Contiki through 3.0. When sending...

Vulnerability Description

An issue was discovered in Contiki through 3.0. When sending an ICMPv6 error message because of invalid extension header options in an incoming IPv6 packet, there is an attempt to remove the RPL extension headers. Because the packet length and the extension header length are unchecked (with respect to the available data) at this stage, and these variables are susceptible to integer underflow, it is possible to construct an invalid extension header that will cause memory corruption issues and lead to a Denial-of-Service condition. This is related to rpl-ext-header.c.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-28362

Credits & Attribution

No credits recorded in the NVD database.

References

More from contiki-os

View All →
CVE-2021-40523
In Contiki 3.0, Telnet option negotiation is mishandled. During negotiation...
High 7.5
CVE-2021-38387
In Contiki 3.0, a Telnet server that silently quits (before...
High 7.5
CVE-2021-38386
In Contiki 3.0, a buffer overflow in the Telnet service...
High 7.5
CVE-2021-38311
In Contiki 3.0, potential nonterminating acknowledgment loops exist in the...
High 7.5
CVE-2020-25112
An issue was discovered in the IPv6 stack in Contiki...
Critical 9.8

Affected Vendor

Affected Software

contiki
Vulnerable Versions:
0

Timeline

Official Publish: March 24th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.