Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-26895

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
21/10/2020
Last modified:
30/10/2020

Description

Prior to 0.10.0-beta, LND (Lightning Network Daemon) would have accepted a counterparty high-S signature and broadcast tx-relay invalid local commitment/HTLC transactions. This can be exploited by any peer with an open channel regardless of the victim situation (e.g., routing node, payment-receiver, or payment-sender). The impact is a loss of funds in certain situations.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.1:alpha:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.1.1:alpha:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.2:alpha:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.2.1:alpha:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.3:alpha:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.4:beta:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.4.1:beta:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.4.2:beta:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5:beta:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5:beta_rc1:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5:beta_rc2:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.1:beta:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.1:beta_rc1:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.1:beta_rc2:*:*:*:*:*:*
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.5.1:beta_rc3:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools