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Regular expression denial of service (ReDoS) in EmailValidator class in Vaadin 7

High severity GitHub Reviewed Published Apr 16, 2021 in vaadin/framework • Updated May 15, 2024

Package

maven com.vaadin:vaadin-bom (Maven)

Affected versions

>= 7.0.0.beta1, < 7.7.22

Patched versions

7.7.22
maven com.vaadin:vaadin-server (Maven)
>= 7.0.0.beta1, < 7.7.22
7.7.22

Description

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.

References

@fluorumlabs fluorumlabs published to vaadin/framework Apr 16, 2021
Reviewed Apr 16, 2021
Published to the GitHub Advisory Database Apr 19, 2021
Published by the National Vulnerability Database Apr 23, 2021
Last updated May 15, 2024

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2020-36320

GHSA ID

GHSA-42j4-733x-5vcf

Source code

No known source code

Credits

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