CVE-2012-1909

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.

Score

CVSS 2.0 5.0 Medium

Status

Modified - cve@mitre.org

Published

2012-08-06

Last modified

2024-09-17

Weaknesses

CWE-16

Affected products

• Bitcoin Core (Bitcoin)
• Wxbitcoin (Bitcoin)

References

• http://r6.ca/blog/20120206T005236Z.html
• http://sourceforge.net/mailarchive/forum.php?thread_name=CAPg%2BsBhmGHnMResVxPDZdfpmWTb9uqD0RrQD7oSXBQq7oHpm8g%40mail.g…
• https://bitcointalk.org/index.php?topic=67738.0
• https://bugs.gentoo.org/show_bug.cgi?id=407793
• https://en.bitcoin.it/wiki/BIP_0030
• https://en.bitcoin.it/wiki/CVEs
• https://github.com/sipa/bitcoin/commit/a206b0ea12eb4606b93323268fc81a4f1f952531