CVE-2012-1909

Severity

50%

Complexity

99%

Confidentiality

48%

The Bitcoin protocol, as used in bitcoind before 0.4.4, wxBitcoin, Bitcoin-Qt, and other programs, does not properly handle multiple transactions with the same identifier, which allows remote attackers to cause a denial of service (unspendable transaction) by leveraging the ability to create a duplicate coinbase transaction.

The Bitcoin protocol, as used in bitcoind before 0.4.4, wxBitcoin, Bitcoin-Qt, and other programs, does not properly handle multiple transactions with the same identifier, which allows remote attackers to cause a denial of service (unspendable transaction) by leveraging the ability to create a duplicate coinbase transaction.

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Overview

Type

Bitcoin Core

First reported 12 years ago

2012-08-06 16:55:00

Last updated 4 years ago

2020-03-18 17:37:00

Affected Software

Bitcoin Core 0.3.4

0.3.4

Bitcoin Core 0.3.5

0.3.5

Bitcoin Core 0.3.8

0.3.8

Bitcoin Core 0.3.10

0.3.10

Bitcoin Core 0.3.11

0.3.11

Bitcoin Core 0.3.12

0.3.12

Bitcoin Core 0.4.0

0.4.0

Bitcoin Core 0.4.1

0.4.1

Bitcoin Core 0.4.1 Release Candidate 6

0.4.1

References

http://r6.ca/blog/20120206T005236Z.html

[bitcoin-development] 20120228 Duplicate transactions vulnerability

https://bitcointalk.org/index.php?topic=67738.0

https://bugs.gentoo.org/show_bug.cgi?id=407793

https://en.bitcoin.it/wiki/BIP_0030

Vendor Advisory

https://en.bitcoin.it/wiki/CVEs

Vendor Advisory

https://github.com/sipa/bitcoin/commit/a206b0ea12eb4606b93323268fc81a4f1f952531

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