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btcd mishandles witness size checking

Critical severity GitHub Reviewed Published Nov 7, 2022 to the GitHub Advisory Database • Updated May 20, 2024

Package

gomod github.com/btcsuite/btcd (Go)

Affected versions

< 0.23.2

Patched versions

0.23.2
gomod github.com/lightningnetwork/lnd (Go)
< 0.15.2-beta
0.15.2-beta

Description

btcd before 0.23.2, as used in Lightning Labs lnd before 0.15.2-beta and other Bitcoin-related products, mishandles witness size checking.

Specific Go Packages Affected

github.com/btcsuite/btcd/wire

References

Published by the National Vulnerability Database Nov 7, 2022
Published to the GitHub Advisory Database Nov 7, 2022
Reviewed Nov 7, 2022
Last updated May 20, 2024

Severity

Critical

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
High
Integrity
High
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:H/I:H/A:H

EPSS score

0.220%
(60th percentile)

Weaknesses

No CWEs

CVE ID

CVE-2022-44797

GHSA ID

GHSA-2chg-86hq-7w38

Source code

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