Critical · 9.8 CVE-2023-25933 EUVD-2023-29821GHSA-jgwv-fx37-24vq

A type confusion bug in TypedArray prior to commit e6ed9c1a4b02dc219de1648f44cd808a56171b81 could have been used by a malicious attacker to…

Published May 18, 2023 · Updated Jan 21, 2025 · Assigned by facebook

Description

A type confusion bug in TypedArray prior to commit e6ed9c1a4b02dc219de1648f44cd808a56171b81 could have been used by a malicious attacker to execute arbitrary code via untrusted JavaScript. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

Affected products

Vendor	Product	Affected	Fixed
Facebook	Hermes	< e6ed9c1a4b02dc219de1648f44cd808a56171b81	e6ed9c1a4b02dc219de1648f44cd808a56171b81

References

https://www.facebook.com/security/advisories/cve-2023-25933
https://github.com/facebook/hermes/commit/e6ed9c1a4b02dc219de1648f44cd808a56171b81