CVE-2023-23557

2023-05-1822:15:09

CWE-843

facebook

web.nvd.nist.gov

hermes

algorithm

objects properties

type confusion

code execution

javascript

react native

vulnerability

cve-2023-23557

nvd

CVSS3

9.8

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

AI Score

9.6

Confidence

High

EPSS

0.004

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

VendorProductVersionCPE
facebookhermes*cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
facebook	hermes	*	cpe:2.3:a:facebook:hermes::::::::

CNA Affected

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