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CVE-2021-22883

Quick assessment

Affected
NodeJS Node
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

nodejs是是一个基于ChromeV8引擎的JavaScript运行环境通过对Chromev8引擎进行了封装以及使用事件驱动和非阻塞IO的应用让Javascript开发高性能的后台应用成为了可能。 Nodejs 存在资源管理错误漏洞，攻击者可利用该漏洞可以通过节点核心的HTTP2未知协议触发重载，从而触发拒绝服务。以下产品和版本受到影响：Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0

AI Predicted 7.5 Difficulty: Moderate EPSS 77.39% · P100

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-22883

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 'unknownProtocol' are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file descriptor limit is configured, then this lead to an excessive memory usage and cause the system to run out of memory.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
nodejs 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
nodejs是是一个基于ChromeV8引擎的JavaScript运行环境通过对Chromev8引擎进行了封装以及使用事件驱动和非阻塞IO的应用让Javascript开发高性能的后台应用成为了可能。 Nodejs 存在资源管理错误漏洞，攻击者可利用该漏洞可以通过节点核心的HTTP2未知协议触发重载，从而触发拒绝服务。以下产品和版本受到影响：Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
NodeJS Node 4.0 ~ 4.* -

II. Public POCs for CVE-2021-22883

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III. Intelligence Information for CVE-2021-22883

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Vendor Advisories for CVE-2021-22883 (4)

Mailing List Discussions for CVE-2021-22883 (3)

Security Blog Posts for CVE-2021-22883 (1)

Other References for CVE-2021-22883 (1)

IV. Related Vulnerabilities

Same product: Node
Same vendor: NodeJS
Same weakness: CWE-400

V. Comments for CVE-2021-22883

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