In Contiki 3.0, potential nonterminating acknowledgment loops exist in the Telnet service. When the negotiated options are already disabled, servers still respond to DONT and WONT requests with WONT or DONT commands, which may lead to infinite acknowledgment loops, denial of service, and excessive CPU consumption.
Advisories
Source ID Title
EUVD EUVD EUVD-2021-24764 In Contiki 3.0, potential nonterminating acknowledgment loops exist in the Telnet service. When the negotiated options are already disabled, servers still respond to DONT and WONT requests with WONT or DONT commands, which may lead to infinite acknowledgment loops, denial of service, and excessive CPU consumption.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T01:37:16.302Z

Reserved: 2021-08-09T00:00:00

Link: CVE-2021-38311

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-08-09T22:15:08.733

Modified: 2024-11-21T06:16:46.283

Link: CVE-2021-38311

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.