CVE-2023-23557

2023-05-1822:15:09

CWE-843

[email protected]

web.nvd.nist.gov

hermes

algorithm

objects properties

type confusion

code execution

javascript

react native

vulnerability

cve-2023-23557

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

9.6 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.2%

JSON

An error in Hermes’ algorithm for copying objects properties prior to commit a00d237346894c6067a594983be6634f4168c9ad could be used by a malicious attacker to execute arbitrary code via type confusion. 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 configurations

NVD

Node

facebookhermesRange<2023-01-10

CPENameOperatorVersion
facebook:hermesfacebook hermeslt2023-01-10

CPE	Name	Operator	Version
facebook:hermes	facebook hermes	lt	2023-01-10

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Hermes",
    "vendor": "Facebook",
    "versions": [
      {
        "lessThan": "a00d237346894c6067a594983be6634f4168c9ad",
        "status": "affected",
        "version": "0",
        "versionType": "git"
      }
    ]
  }
]