In Contiki 3.0, Telnet option negotiation is mishandled. During negotiation between a server and a client, the server may fail to give the WILL/WONT or DO/DONT response for DO and WILL commands because of improper handling of exception condition, which leads to property violations and denial of service. Specifically, a server sometimes sends no response, because a fixed buffer space is available for all responses and that space may have been exhausted.
References
Link | Resource |
---|---|
https://github.com/contiki-os/contiki/issues/2686 | Patch Third Party Advisory |
https://github.com/contiki-os/contiki/issues/2686 | Patch Third Party Advisory |
Configurations
History
21 Nov 2024, 06:24
Type | Values Removed | Values Added |
---|---|---|
References | () https://github.com/contiki-os/contiki/issues/2686 - Patch, Third Party Advisory |
Information
Published : 2021-09-05 19:15
Updated : 2024-11-21 06:24
NVD link : CVE-2021-40523
Mitre link : CVE-2021-40523
CVE.ORG link : CVE-2021-40523
JSON object : View
Products Affected
contiki-os
- contiki
CWE
CWE-754
Improper Check for Unusual or Exceptional Conditions