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.
Metrics
Affected Vendors & Products
References
Link | Providers |
---|---|
https://github.com/contiki-os/contiki/issues/2686 |
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2021-09-05T18:26:43
Updated: 2024-08-04T02:44:10.790Z
Reserved: 2021-09-05T00:00:00
Link: CVE-2021-40523
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-09-05T19:15:15.030
Modified: 2024-11-21T06:24:18.947
Link: CVE-2021-40523
Redhat
No data.