Spring Security Advisories

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DoS Via Malformed URL with Reactor Netty HTTP Server

MEDIUM | FEBRUARY 27, 2020 | CVE-2020-5403

Description

Reactor Netty HttpServer, versions 0.9.3 and 0.9.4, is exposed to a URISyntaxException that causes the connection to be closed prematurely instead of producing a 400 response.

Affected Spring Products and Versions

Reactor Netty:

  • 0.9.4 - 0.9.4
  • 0.9.3 and earlier

Mitigation

Users of affected versions should upgrade to the corresponding fixed version.
Fix versionAvailability
0.9.5OSS
0.9.5OSS

No further mitigation steps are necessary.

Credit

This issue was identified and responsibly reported by Wojciech Kuranowski.

References

History

  • 2020-02-27: Initial vulnerability report published.

Reporting a vulnerability

To report a security vulnerability for a project within the Spring portfolio, see the Security Policy

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