CVE-2012-1909 Denial of service in n/a
Remote attackers can cause denial of service by creating duplicate coinbase transactions, rendering them unspendable in Bitcoin protocol implementations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2012-1909?
CVE-2012-1909 is a medium-severity denial of service vulnerability in Bitcoin Bitcoin Core, published on 6 Aug 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-16
Which versions are affected by CVE-2012-1909?
It affects 2 products.
Products include Bitcoin Bitcoin Core, Bitcoin Wxbitcoin.
How do I fix CVE-2012-1909?
No fix has been published for CVE-2012-1909 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2012-1909 being exploited?
There is no known exploitation of CVE-2012-1909 in the wild and no public exploit code.
Other vulnerabilities in Bitcoin Bitcoin Core
Sources
Also known as GHSA-77f9-3fqp-c88c.