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9.8 Critical

CVE-2023-23556 An error in BigInt conversion to Number in Hermes prior to commit a6dcafe6ded8e61658b40f5699878cd19a481f80 could have…

Description

An error in BigInt conversion to Number in Hermes prior to commit a6dcafe6ded8e61658b40f5699878cd19a481f80 could have been used by a malicious attacker to execute arbitrary code due to an out-of-bound write. Note that this bug is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

Affected products and versions

Product Affected versions Fixed in
Hermes Versions not published

Other CVEs of Hermes

The 20 CVEs of Hermes →
CVE-2023-30470 A use-after-free related to unsound inference in the bytecode generation when optimizations are enabled for Hermes prior… 9.8 Critical CVE-2023-28081 A bytecode optimization bug in Hermes prior to commit e6ed9c1a4b02dc219de1648f44cd808a56171b81 could be used to cause an… 9.8 Critical CVE-2023-25933 A type confusion bug in TypedArray prior to commit e6ed9c1a4b02dc219de1648f44cd808a56171b81 could have been used by a… 9.8 Critical CVE-2023-24833 A use-after-free in BigIntPrimitive addition in Hermes prior to commit a6dcafe6ded8e61658b40f5699878cd19a481f80 could… 7.5 High
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