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CVE-2021-22918

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 存在缓冲区错误漏洞，该漏洞源于程序的uv__idna_toascii()函数中存在越界读取漏洞。

AI Predicted 5.3 Difficulty: Moderate EPSS 23.13% · P98
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I. Basic Information for CVE-2021-22918

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether it is beyond pe, with the latter holding a pointer to the end of the buffer. This can lead to information disclosures or crashes. This function can be triggered via uv_getaddrinfo().
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
nodejs 缓冲区错误漏洞
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 存在缓冲区错误漏洞，该漏洞源于程序的uv__idna_toascii()函数中存在越界读取漏洞。
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
NodeJS Node 4.0 ~ 4.* -

II. Public POCs for CVE-2021-22918

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III. Intelligence Information for CVE-2021-22918

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Vendor Advisories for CVE-2021-22918 (3)

Security Blog Posts for CVE-2021-22918 (1)

Other References for CVE-2021-22918 (1)

IV. Related Vulnerabilities

Same product: Node
Same vendor: NodeJS
Same weakness: CWE-125

V. Comments for CVE-2021-22918

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