CVE-2023-23556

2023-05-1822:15:09

CWE-787

[email protected]

web.nvd.nist.gov

cve-2023-23556

bigint

number

hermes

arbitrary code

out-of-bound write

javascript

react native

nvd

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.7 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.2%

JSON

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 configurations

NVD

Node

facebookhermesRange<2023-02-02

CPENameOperatorVersion
facebook:hermesfacebook hermeslt2023-02-02

CPE	Name	Operator	Version
facebook:hermes	facebook hermes	lt	2023-02-02

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Hermes",
    "vendor": "Facebook",
    "versions": [
      {
        "lessThan": "a6dcafe6ded8e61658b40f5699878cd19a481f80",
        "status": "affected",
        "version": "0",
        "versionType": "git"
      }
    ]
  }
]