CVE-2018-12541 Information

Description

In version from 3.0.0 to 3.5.3 of Eclipse Vert.x the WebSocket HTTP upgrade implementation buffers the full http request before doing the handshake holding the entire request body in memory. There should be a reasonnable limit (8192 bytes) above which the WebSocket gets an HTTP response with the 413 status code and the connection gets closed.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://access.redhat.com/errata/RHSA-2018:2946 https://bugs.eclipse.org/bugs/show_bug.cgi?id=539170 https://github.com/eclipse-vertx/vert.x/issues/2648

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5