CVE-2024-34149 Denial of service in n/a
Bitcoin Core lacks a policy size limit check in tapscript, potentially allowing attackers to cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-34149?
CVE-2024-34149 is a medium-severity denial of service vulnerability in n/a, published on 30 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Bitcoin Core through 27.0 and Bitcoin Knots before 25.1.knots20231115, tapscript lacks a policy size limit check, a different issue than CVE-2023-50428. NOTE: some parties oppose this new limit check (for example, because they agree with the objective but disagree with the technical mechanism, or because they have a different objective).
Which versions are affected by CVE-2024-34149?
How do I fix CVE-2024-34149?
No fix has been published for CVE-2024-34149 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-2024-34149 being exploited?
There is no known exploitation of CVE-2024-34149 in the wild and no public exploit code.
Sources
Also known as GHSA-xjxq-r86x-5mrv.