CVE-2023-23556

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Source

https://cve.org/CVERecord?id=CVE-2023-23556

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-23556.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2023-23556

Published

2023-05-18T22:15:09.487Z

Modified

2026-04-12T06:21:01.585677Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

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.

References

Affected packages

Git / github.com/facebook/hermes

Affected ranges

Type: GIT
Repo: https://github.com/facebook/hermes
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

a6dcafe6ded8e61658b40f5699878cd19a481f80

Type: GIT
Repo: https://github.com/facebook/hermes
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

a6dcafe6ded8e61658b40f5699878cd19a481f80

Affected versions

hermes-2022-04-28-RNv0.*

hermes-2022-04-28-RNv0.69.0-15d07c2edd29a4ea0b8f15ab0588a0c1adb1200f

hermes-2022-07-15-RNv0.*

hermes-2022-07-15-RNv0.70.0-88dd5731a19ab6b38b0a0a2d4386ba959f2a2c98

hermes-2022-11-03-RNv0.*

hermes-2022-11-03-RNv0.71.0-85613e1f9d1216f2cce7e54604be46057092939d

v0.*

v0.1.0

v0.1.1

v0.10.0

v0.11.0

v0.12.0

v0.2.1

v0.3.0

v0.4.0

v0.5.0

v0.6.0

v0.7.0

v0.8.0

v0.9.0

Database specific

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "2023-02-02"
            }
        ]
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-23556.json"

vanir_signatures_modified

"2026-04-12T06:21:01Z"

vanir_signatures

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