CVE-2020-1913

HIGH8.1

An Integer signedness error in the JavaScript Interpreter in Facebook Hermes prior to commit 2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6 allows attackers to cause a denial of service attack or a potential RCE via crafted JavaScript

Published Sep 9, 2020

Modified 1 years ago

Details

An Integer signedness error in the JavaScript Interpreter in Facebook Hermes prior to commit 2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6 allows attackers to cause a denial of service attack or a potential RCE 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.

References

WEB

https://github.com/facebook/hermes/commit/2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2020-1913

WEB

https://www.facebook.com/security/advisories/cve-2020-1913

CVSS Analysis

CVSS v3.1

8.1

Exploitability

Attack Vector