CVE-2024-38359 — The Lightning Network Daemon (lnd) - is a complete implementation of a Lightning

The Lightning Network Daemon (lnd) - is a complete implementation of a Lightning Network node. A parsing vulnerability in lnd's onion processing logic and lead to a DoS vector due to excessive memory allocation. The issue was patched in lnd v0.17.0. Users should update to a

01What is this vulnerability?

The Lightning Network Daemon (lnd) - is a complete implementation of a Lightning Network node. A parsing vulnerability in lnd's onion processing logic and lead to a DoS vector due to excessive memory allocation. The issue was patched in lnd v0.17.0. Users should update to a version > v0.17.0 to be protected. Users unable to upgrade may set the `--rejecthtlc` CLI flag and also disable forwarding…

02Affected products

Vendor	Product	Versions
lightningnetwork	lnd	< 0.17.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-06-20T22:16:00.428Z
• Last modified: 2024-08-02T04:04:25.238Z

09References

• github.com — https://github.com/lightningnetwork/lnd/security/advisories/GHSA-9gxx-58q6-42p7
• delvingbitcoin.org — https://delvingbitcoin.org/t/dos-disclosure-lnd-onion-bomb/979
• github.com — https://github.com/lightningnetwork/lnd/releases/tag/v0.17.0-beta
• lightning.network — https://lightning.network
• morehouse.github.io — https://morehouse.github.io/lightning/lnd-onion-bomb