CVE-2012-4684 Denial of service in n/a
Remote attackers can cause resource consumption and denial of service in Bitcoin clients by submitting modified signatures for circulating alerts.
- 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-2012-4684?
CVE-2012-4684 is a high-severity denial of service vulnerability in Bitcoin Bitcoin Core, published on 12 Mar 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The alert functionality in bitcoind and Bitcoin-Qt before 0.7.0 supports different character representations of the same signature data, but relies on a hash of this signature, which allows remote attackers to cause a denial of service (resource consumption) via a valid modified signature for a circulating alert.
Weakness: CWE-399
Which versions are affected by CVE-2012-4684?
It affects 4 products.
Products include Bitcoin Bitcoin-Qt, Bitcoin Bitcoin Core, Bitcoin Bitcoind, Bitcoin Wxbitcoin.
How do I fix CVE-2012-4684?
No fix has been published for CVE-2012-4684 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-2012-4684 being exploited?
There is no known exploitation of CVE-2012-4684 in the wild and no public exploit code.
Other vulnerabilities in Bitcoin Bitcoin Core
Sources
Also known as GHSA-rc7m-hpcg-8c7c.