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CVE-2022-39386— fastify-websocket vulnerable to uncaught exception via crash on malformed packet

Quick assessment

Affected
fastify fastify-websocket
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.

Fastify是OpenJS基金会的一款用于Node.js的开源Web框架。 Fastify fastify-websocket存在安全漏洞，该漏洞源于攻击者向其发送特定的格式错误的数据包，可能导致其崩溃。

CVSS 7.5 · High EPSS 0.78% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-39386

Vulnerability Information
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Vulnerability Title
fastify-websocket vulnerable to uncaught exception via crash on malformed packet
Source: CVE Program / CVE List V5
Vulnerability Description
@fastify/websocket provides WebSocket support for Fastify. Any application using @fastify/websocket could crash if a specific, malformed packet is sent. All versions of fastify-websocket are also impacted. That module is deprecated, so it will not be patched. This has been patched in version 7.1.1 (fastify v4) and version 5.0.1 (fastify v3). There are currently no known workarounds. However, it should be possible to attach the error handler manually. The recommended path is upgrading to the patched versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
Source: CVE Program / CVE List V5
Vulnerability Title
Fastify 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fastify是OpenJS基金会的一款用于Node.js的开源Web框架。 Fastify fastify-websocket存在安全漏洞，该漏洞源于攻击者向其发送特定的格式错误的数据包，可能导致其崩溃。
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
fastify fastify-websocket >= 5.0.0, < 5.0.1 -

II. Public POCs for CVE-2022-39386

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III. Intelligence Information for CVE-2022-39386

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Vendor Advisories for CVE-2022-39386 (1)

IV. Related Vulnerabilities

Same vendor: fastify
Same weakness: CWE-248

V. Comments for CVE-2022-39386

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