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CVE-2022-40138

Quick assessment

Affected
Facebook Hermes
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.

Facebook Hermes是美国Facebook公司的一个JavaScript引擎。该引擎针对React Native应用，去提高移动客户端应用App的性能，但是对浏览器 & Node.js 等服务端基础架构并不适用。 Facebook Hermes 存在安全漏洞，该漏洞源于在字节码生成中出现整数转换错误。攻击者利用该漏洞执行越界操作并随后执行任意代码。

AI Predicted 7.5 Difficulty: Theoretical EPSS 0.99% · P61

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2022-40138

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An integer conversion error in Hermes bytecode generation, prior to commit 6aa825e480d48127b480b08d13adf70033237097, could have been used to perform Out-Of-Bounds operations and subsequently execute arbitrary code. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
数值类型间的不正确转换
Source: CVE Program / CVE List V5
Vulnerability Title
Facebook Hermes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Facebook Hermes是美国Facebook公司的一个JavaScript引擎。该引擎针对React Native应用，去提高移动客户端应用App的性能，但是对浏览器 & Node.js 等服务端基础架构并不适用。 Facebook Hermes 存在安全漏洞，该漏洞源于在字节码生成中出现整数转换错误。攻击者利用该漏洞执行越界操作并随后执行任意代码。
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
Facebook Hermes unspecified ~ commit prior to 6aa825e480d48127b480b08d13adf70033237097 -

II. Public POCs for CVE-2022-40138

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III. Intelligence Information for CVE-2022-40138

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Other References for CVE-2022-40138 (1)

Same Patch Batch · Facebook · 2022-10-11 · 3 CVEs total

CVE-2022-32234 Facebook Hermes 缓冲区错误漏洞
CVE-2022-35289 Facebook Hermes 输入验证错误漏洞

IV. Related Vulnerabilities

Same product: Hermes
Same vendor: Facebook
Same weakness: CWE-681

V. Comments for CVE-2022-40138

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