CVE-2013-3220 Denial of service in n/a
Remote attackers can cause a network split and enable double-spending by sending large blocks that trigger excessive database locks in Bitcoin clients.
- 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-2013-3220?
CVE-2013-3220 is a medium-severity denial of service vulnerability in Bitcoin Bitcoin Core, published on 1 Aug 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
bitcoind and Bitcoin-Qt before 0.4.9rc2, 0.5.x before 0.5.8rc2, 0.6.x before 0.6.5rc2, and 0.7.x before 0.7.3rc2, and wxBitcoin, do not properly consider whether a block's size could require an excessive number of database locks, which allows remote attackers to cause a denial of service (split) and enable certain double-spending capabilities via a large block that triggers incorrect Berkeley DB locking.
Weakness: CWE-399
Which versions are affected by CVE-2013-3220?
It affects 4 products.
Products include Bitcoin Bitcoin-Qt, Bitcoin Bitcoin Core, Bitcoin Bitcoind, Bitcoin Qitcoin-Qt.
How do I fix CVE-2013-3220?
No fix has been published for CVE-2013-3220 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-2013-3220 being exploited?
There is no known exploitation of CVE-2013-3220 in the wild and no public exploit code.
Other vulnerabilities in Bitcoin Bitcoin Core
Sources
Also known as GHSA-xr7c-w8xq-cg55.