CVE-2021-38311
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductContiki
PublishedAug 9, 2021
First seenAug 9, 2021
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| contiki-os contiki | 3.0 | — |
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