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CVE-2020-1914

Published: Oct 8, 2020

Modified: Aug 4, 2024

PUBLISHED

Description

A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically 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.

Vendor	Product	Versions
Facebook	Hermes	affected `commit prior to b2021df620824627f5a8c96615edbd1eb7fdddfc`

Weaknesses (CWE)

References

https://www.facebook.com/security/advisories/cve-2020-1914

x_refsource_CONFIRM

https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc

x_refsource_CONFIRM

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