PT-2021-23354 · Acinq · Acinq Eclair

Antoine Riard · Published 2021-10-04 · Updated 2022-07-12 · CVE-2021-41591

Positive Technologies (AI Summary)

CVSS v3.1

9.4

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions ACINQ Eclair versions prior to 0.6.3

Description The issue allows for loss of funds due to dust HTLC exposure.

Recommendations For versions prior to 0.6.3, update to version 0.6.3 or later to resolve the issue.

Exploit

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2021-41591

Affected Products

Acinq Eclair

References · 7

• 🔥 https://lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003257.html · Exploit
• https://github.com/ACINQ/eclair/pull/1985 · Patch
• https://osv.dev/vulnerability/CVE-2021-41591 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-41591 · Security Note
• https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-May/002714.html · Vendor Advisory
• https://t.me/cibsecurity/29905 · Telegram Post
• https://bitcoinmagazine.com/technical/good-griefing-a-lingering-vulnerability-on-lightning-network-that-still-needs-fixing · Note