CVE-2022-35923

2022-08-0220:15:09

CWE-400

CWE-1333

[email protected]

web.nvd.nist.gov

v8n

javascript

validation

library

cve

cve-2022-35923

dos

security

nvd

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

50.1%

JSON

v8n is a javascript validation library. Versions of v8n prior to 1.5.1 were found to have an inefficient regular expression complexity in the lowercase() and uppercase() regex which could lead to a denial of service attack. In testing of the lowercase() function a payload of ‘a’ + ‘a’.repeat(i) + ‘A’ with 32 leading characters took 29443 ms to execute. The same issue happens with uppercase(). Users are advised to upgrade. There are no known workarounds for this issue.

Affected configurations

Vulners

NVD

Node

imbrnv8nRange<1.5.1

CPENameOperatorVersion
v8n_project:v8nv8n project v8nlt1.5.1

CPE	Name	Operator	Version
v8n_project:v8n	v8n project v8n	lt	1.5.1

CNA Affected

[
  {
    "product": "v8n",
    "vendor": "imbrn",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.5.1"
      }
    ]
  }
]