Integer overflow

2022-10-1102:15:00

PRIOn knowledge base

www.prio-n.com

integer overflow

write-what-where

hermes

commit 5b6255ae049fa4641791e47fad994e8e8c4da374

arbitrary code

crafted javascript

react native

untrusted javascript

security vulnerability

9.6 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

69.9%

JSON

A write-what-where condition in hermes caused by an integer overflow, prior to commit 5b6255ae049fa4641791e47fad994e8e8c4da374 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.