Vulnerability Details : CVE-2021-38387
In Contiki 3.0, a Telnet server that silently quits (before disconnection with clients) leads to connected clients entering an infinite loop and waiting forever, which may cause excessive CPU consumption.
Products affected by CVE-2021-38387
- cpe:2.3:o:contiki-os:contiki:3.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-38387
0.33%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 53 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-38387
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-38387
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-38387
-
https://github.com/contiki-os/contiki/issues/2688
Silent quit of telnet servers leading to clients waiting forever · Issue #2688 · contiki-os/contiki · GitHubThird Party Advisory
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