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DoS in RakNet connection handling (Cloudburst Network)

High
GingerGeek published GHSA-6h3m-c6fv-8hvh Mar 30, 2024

Package

maven org.cloudburstmc.netty:netty-transport-raknet (Maven)

Affected versions

< 1.0.0.CR1-20240330.101522-15

Patched versions

1.0.0.CR1-20240330.101522-15

Description

Impact

This vulnerability impacts publicly accessible software depending on the affected versions of Network and allows an attacker to use Network as an amplification vector for a UDP denial of service attack against a third party or as an attempt to trigger service suspension of the host.

Patches

All consumers of the library should upgrade to at least version 1.0.0.CR1-20240330.101522-15

Geyser Users: Geyser relies on this library and the latest builds (Build #478+) contains the fix.

Workarounds

There are no known workarounds beyond updating the library.

References

Questions or comments about this advisory can be addressed in the Cloudburst Discord #protocol channel.

Response to this vulnerability was part supported and funded by CubeCraft as part of it's Open Collaboration Project. We would like to thank all maintainers and volunteers who helped support the response.

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVE ID

CVE-2024-30249

Weaknesses

No CWEs

Credits