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FacebookCVE-2023-30470

HistoryMay 18, 2023 - 10:15 p.m.

CVE-2023-30470

2023-05-1822:15:09

CWE-416

facebook

web.nvd.nist.gov

cve-2023-30470

use-after-free

bytecode generation

hermes

optimizations

remote code execution

untrusted javascript

react native

security vulnerability

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

9.9

Confidence

High

EPSS

0.007

Percentile

80.9%

JSON

A use-after-free related to unsound inference in the bytecode generation when optimizations are enabled for Hermes prior to commit da8990f737ebb9d9810633502f65ed462b819c09 could have been used by an attacker to achieve remote code execution. 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

facebookhermesMatch-

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": "da8990f737ebb9d9810633502f65ed462b819c09",
        "status": "affected",
        "version": "0",
        "versionType": "git"
      }
    ]
  }
]

References

github.com/facebook/hermes/commit/da8990f737ebb9d9810633502f65ed462b819c09

www.facebook.com/security/advisories/cve-2023-30470

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

9.9

Confidence

High

EPSS

0.007

Percentile

80.9%

JSON

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