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

7.5HIGH

Key Information:

Vendor

Vaadin

Status
Vaadin
Vaadin-server
Vendor
CVE Published:
23 April 2021

What is CVE-2020-36320?

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.

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Deploy the Patch

Affected Version(s)

Vaadin 7.0.0

vaadin-server 7.0.0

References

https://vaadin.com/security/cve-2020-36320
x_refsource_MISC
https://github.com/vaadin/framework/issues/7757
x_refsource_MISC
https://github.com/vaadin/framework/pull/12104
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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