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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| hermes-engine(npm) | 0 | 0.5.2 | N/A |
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