CVE Vulnerability

CVE-2021-28362

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.kb.cert.org/vuls/id/815128 Third Party Advisory US Government Resource
https://github.com/contiki-os/contiki/releases Release Notes Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:contiki-os:contiki:*:*:*:*:*:*:*:*
Information

Published : 2021-03-24 02:15

Updated : 2021-03-26 09:10

NVD link : CVE-2021-28362

Mitre link : CVE-2021-28362

Products Affected
No products.
CWE
CWE-191

Integer Underflow (Wrap or Wraparound)