CVE-2021-43307 Exponential ReDoS in semver-regex

2022-06-0116:47:38

CWE-1333

JFROG

www.cve.org

cve-2021-43307

exponential redos

regular expression denial of service

semver-regex

npm package

test() method

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

0.001

Percentile

36.8%

JSON

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the semver-regex npm package, when an attacker is able to supply arbitrary input to the test() method

CNA Affected

[
  {
    "product": "semver-regex",
    "vendor": "semver-regex",
    "versions": [
      {
        "changes": [
          {
            "at": "4.0.3",
            "status": "unaffected"
          }
        ],
        "lessThan": "3.1.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]