Vulnerabilities > CVE-2012-1909 - Configuration vulnerability in Bitcoin Core and Wxbitcoin
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- http://r6.ca/blog/20120206T005236Z.html
- http://sourceforge.net/mailarchive/forum.php?thread_name=CAPg%2BsBhmGHnMResVxPDZdfpmWTb9uqD0RrQD7oSXBQq7oHpm8g%40mail.gmail.com&forum_name=bitcoin-development
- 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