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LND Onion Bomb

High
Roasbeef published GHSA-9gxx-58q6-42p7 Jun 20, 2024

Package

gomod lnd (Go)

Affected versions

< 0.17.0-beta

Patched versions

0.17.0-beta

Description

Impact

A parsing vulnerability in lnd's onion processing logic led to a DoS vector due to excessive memory allocation.

Patches

The issue was patched in lnd v0.17.0. Users should update to a version >= v0.17.0 to be protected.

References

Detailed blog post: https://morehouse.github.io/lightning/lnd-onion-bomb/

Developer discussion: https://delvingbitcoin.org/t/dos-disclosure-lnd-onion-bomb/979

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
Unchanged
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:U/C:N/I:N/A:H

CVE ID

CVE-2024-38359

Weaknesses

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Learn more on MITRE.

Credits