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MitreCVE-2021-42141

HistoryJan 22, 2024 - 11:15 p.m.

CVE-2021-42141

2024-01-2223:15:08

CWE-755

mitre

web.nvd.nist.gov

contiki-ng

tinydtls

cve

dos

denial of service

security vulnerability

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.1

Confidence

High

EPSS

0.001

Percentile

45.9%

JSON

An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. One incorrect handshake could complete with different epoch numbers in the packets Client_Hello, Client_key_exchange, and Change_cipher_spec, which may cause denial of service.

Affected configurations

Nvd

Node

contiki-ngtinydtlsRange≤2018-08-30

VendorProductVersionCPE
contiki-ngtinydtls*cpe:2.3:a:contiki-ng:tinydtls:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
contiki-ng	tinydtls	*	cpe:2.3:a:contiki-ng:tinydtls::::::::

References

packetstormsecurity.com/files/176625/Contiki-NG-tinyDTLS-Denial-Of-Service.html

github.com/contiki-ng/tinydtls/issues/27

seclists.org/fulldisclosure/2024/Jan/14

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.1

Confidence

High

EPSS

0.001

Percentile

45.9%

JSON

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