CVE-2021-40523

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Summary

CVECVE-2021-40523
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-05 19:15:00 UTC
Updated2021-09-10 19:50:00 UTC
DescriptionIn 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.

Risk And Classification

Problem Types: CWE-754

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Contiki-os Contiki 3.0 All All All

References

ReferenceSourceLinkTags
Incorrectly handling negotiated options of telnet servers · Issue #2686 · contiki-os/contiki · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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