Potential Memory Exhaustion in Eclipse Vert.x WebSocket Implementation
CVE-2018-12541

6.5MEDIUM

Key Information:

Vendor

The Eclipse Foundation

Status
Eclipse Vert.x
Vendor
CVE Published:
10 October 2018

What is CVE-2018-12541?

The Eclipse Vert.x WebSocket implementation from version 3.0.0 to 3.5.3 is susceptible to a vulnerability where it holds the full HTTP request body in memory during the handshake process. This can lead to unexpected memory usage, potentially resulting in a denial of service if large payloads are sent without limitations. The system should enforce a reasonable limit of 8192 bytes to prevent such scenarios, beyond which the WebSocket connection will be closed with a 413 status code, mitigating high memory utilization risks.

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Affected Version(s)

Eclipse Vert.x 3.0

Eclipse Vert.x <= 3.5.3

References

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

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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