CVE-2023-23556 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00408.

Exploitation none

Automatable yes

Technical Impact total

Vendors	Products
Facebook Subscribe	Hermes Subscribe

Configuration 1 [-]

cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2023-27656	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.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/facebook/hermes/commit/a6dcafe6ded8e61658b40f5699878cd19a481f80
https://www.facebook.com/security/advisories/cve-2023-23556

History

Fri, 31 Jan 2025 14:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: facebook

Published: 2023-05-18T21:16:43.874Z

Updated: 2025-01-31T13:49:25.972Z

Reserved: 2023-01-12T23:36:42.921Z

Link: CVE-2023-23556

Vulnrichment

Updated: 2024-08-02T10:35:32.836Z

NVD

Status : Modified

Published: 2023-05-18T22:15:09.487

Modified: 2025-01-31T14:15:29.200

Link: CVE-2023-23556

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-787

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