CVE-2023-50428 : In Bitcoin Core through 26.0 and Bitcoin Knots before 25.1.knots20231115, dataca

In Bitcoin Core through 26.0 and Bitcoin Knots before 25.1.knots20231115, datacarrier size limits can be bypassed by obfuscating data as code (e.g., with OP_FALSE OP_IF), as exploited in the wild by Inscriptions in 2022 and 2023. NOTE: although this is a vulnerability from the perspective of the Bitcoin Knots project, some others consider it "not a bug."

Published 2023-12-09 19:15:08

Updated 2024-08-02 23:15:28

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2023-50428

Bitcoin » Bitcoin Core
Versions from including (>=) 0.9 and up to, including, (<=) 26.0
cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:*
Matching versions
Bitcoinknots » Bitcoin Knots
Versions from including (>=) 0.9 and before (<) 25.1
cpe:2.3:a:bitcoinknots:bitcoin_knots:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2023-50428

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 10 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-50428

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low

References for CVE-2023-50428

https://github.com/bitcoin/bitcoin/pull/28408#issuecomment-1844981799

datacarriersize: Match more datacarrying by luke-jr · Pull Request #28408 · bitcoin/bitcoin · GitHub
Issue Tracking
https://github.com/bitcoin/bitcoin/blob/65c05db660b2ca1d0076b0d8573a6760b3228068/src/kernel/mempool_options.h#L46-L53

bitcoin/src/kernel/mempool_options.h at 65c05db660b2ca1d0076b0d8573a6760b3228068 · bitcoin/bitcoin · GitHub
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures

Common Vulnerabilities and Exposures - Bitcoin Wiki
Third Party Advisory

CVEs referencing this url
https://github.com/bitcoin/bitcoin/tags

Tags · bitcoin/bitcoin · GitHub
Product
https://twitter.com/LukeDashjr/status/1732204937466032285

Luke Dashjr on X: "PSA: “Inscriptions” are exploiting a vulnerability in #Bitcoin Core to spam the blockchain. Bitcoin Core has, since 2013, allowed users to set a limit on the size of extra data in t
Issue Tracking;Third Party Advisory
https://github.com/bitcoinknots/bitcoin/blob/aed49ce8989334c364a219a6eb016a3897d4e3d7/doc/release-notes.md

bitcoin/doc/release-notes.md at aed49ce8989334c364a219a6eb016a3897d4e3d7 · bitcoinknots/bitcoin · GitHub
Release Notes

Jump to

Vulnerability Details : CVE-2023-50428

Products affected by CVE-2023-50428

Exploit prediction scoring system (EPSS) score for CVE-2023-50428

CVSS scores for CVE-2023-50428

References for CVE-2023-50428