CVE-2021-42141
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Contiki-NG是一套用于下一代IoT（物联网）设备的开源跨平台操作系统。 Contiki-NG tinyDTLS 2018-08-30 版本及之前版本存在安全漏洞，该漏洞源于一次不正确的握手可能会在 Client_Hello、Client_key_exchange 和 Change_cipher_spec 数据包中使用不同的纪元号来完成，这可能会导致拒绝服务。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-42141
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Contiki-NG 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Contiki-NG是一套用于下一代IoT（物联网）设备的开源跨平台操作系统。 Contiki-NG tinyDTLS 2018-08-30 版本及之前版本存在安全漏洞，该漏洞源于一次不正确的握手可能会在 Client_Hello、Client_key_exchange 和 Change_cipher_spec 数据包中使用不同的纪元号来完成，这可能会导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2021-42141
| # | POC Description | Source Link | Shenlong Link |
|---|
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Exploits & Public PoCs for CVE-2021-42141 (1)
Mailing List Discussions for CVE-2021-42141 (1)
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IV. Related Vulnerabilities
V. Comments for CVE-2021-42141
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