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CVE-2020-1912

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 中存在安全漏洞。越界读/写漏洞，攻击者可利用该漏洞使用JavaScript执行任意代码。

AI Predicted 5.3 Difficulty: Hard EPSS 1.81% · P78

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-1912

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds read/write vulnerability when executing lazily compiled inner generator functions in Facebook Hermes prior to commit 091835377369c8fd5917d9b87acffa721ad2a168 allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of 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
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Facebook Hermes 缓冲区错误漏洞
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 中存在安全漏洞。越界读/写漏洞，攻击者可利用该漏洞使用JavaScript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 commit prior to 091835377369c8fd5917d9b87acffa721ad2a168 -

II. Public POCs for CVE-2020-1912

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III. Intelligence Information for CVE-2020-1912

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Patches & Fixes for CVE-2020-1912 (1)

Other References for CVE-2020-1912 (1)

IV. Related Vulnerabilities

Same product: Hermes
Same vendor: Facebook
Same weakness: CWE-787

V. Comments for CVE-2020-1912

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