CVE-2017-9230

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2017-9230
The Bitcoin Proof-of-Work algorithm does not consider a certain attack methodology related to 80-byte block headers with a variety of initial 64-byte chunks followed by the same 16-byte chunk, multiple candidate root values ending with the same 4 bytes, and calculations involving sqrt numbers. This violates the security assumptions of (1) the choice of input, outside of the dedicated nonce area, fed into the Proof-of-Work function should not change its difficulty to evaluate and (2) every Proof-of-Work function execution should be independent. NOTE: a number of persons feel that this methodology is a benign mining optimization, not a vulnerability

7.5 /10

CVSS v3 : HIGH

V3 Legend

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

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
http://www.mit.edu/~jlrubin//public/pdfs/Asicboost.pdf Technical Description
http://www.securityfocus.com/bid/98657 Third Party Advisory VDB Entry
https://arxiv.org/ftp/arxiv/papers/1604/1604.00575.pdf Technical Description
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-April/013996.html Mailing List Technical Description Third Party Advisory
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014349.html Mailing List Third Party Advisory
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014351.html Mailing List Third Party Advisory
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014352.html Mailing List Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:bitcoin:bitcoin:-:*:*:*:*:*:*:*
History

07 Nov 2023, 02:50

Type Values Removed Values Added
Summary ** DISPUTED ** The Bitcoin Proof-of-Work algorithm does not consider a certain attack methodology related to 80-byte block headers with a variety of initial 64-byte chunks followed by the same 16-byte chunk, multiple candidate root values ending with the same 4 bytes, and calculations involving sqrt numbers. This violates the security assumptions of (1) the choice of input, outside of the dedicated nonce area, fed into the Proof-of-Work function should not change its difficulty to evaluate and (2) every Proof-of-Work function execution should be independent. NOTE: a number of persons feel that this methodology is a benign mining optimization, not a vulnerability. The Bitcoin Proof-of-Work algorithm does not consider a certain attack methodology related to 80-byte block headers with a variety of initial 64-byte chunks followed by the same 16-byte chunk, multiple candidate root values ending with the same 4 bytes, and calculations involving sqrt numbers. This violates the security assumptions of (1) the choice of input, outside of the dedicated nonce area, fed into the Proof-of-Work function should not change its difficulty to evaluate and (2) every Proof-of-Work function execution should be independent. NOTE: a number of persons feel that this methodology is a benign mining optimization, not a vulnerability
Information

Published : 2017-05-24 16:29

Updated : 2024-04-11 00:59

NVD link : CVE-2017-9230

Mitre link : CVE-2017-9230

CVE.ORG link : CVE-2017-9230

JSON object : View

Products Affected

bitcoin

  • bitcoin
CWE
CWE-338

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)