CVE-2020-36320 Regular expression Denial of Service (ReDoS) in EmailValidator class in Vaadin 7

2020-10-0800:00:00

CWE-400

Vaadin

www.cve.org

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

0.002 Low

EPSS

Percentile

54.6%

JSON

Unsafe validation RegEx in EmailValidator class in com.vaadin:vaadin-server versions 7.0.0 through 7.7.21 (Vaadin 7.0.0 through 7.7.21) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.

CNA Affected

[
  {
    "product": "Vaadin",
    "vendor": "Vaadin",
    "versions": [
      {
        "lessThan": "*",
        "status": "affected",
        "version": "7.0.0",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "vaadin-server",
    "vendor": "Vaadin",
    "versions": [
      {
        "lessThan": "*",
        "status": "affected",
        "version": "7.0.0",
        "versionType": "custom"
      }
    ]
  }
]