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 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2021-09-05T18:26:43
Updated: 2021-09-05T18:26:43
Reserved: 2021-09-05T00:00:00
Link: CVE-2021-40523
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-09-05T19:15:15.030
Modified: 2021-09-10T19:50:51.270
Link: CVE-2021-40523
JSON object: View
Redhat Information
No data.
CWE