CVE-2023-22551 Denial of service in n/a
Remote attackers can cause denial of service via memory consumption in the FTP library due to missing memory deallocation during connection termination.
- 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-2023-22551?
CVE-2023-22551 is a high-severity denial of service vulnerability in n/a, published on 1 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The FTP (aka "Implementation of a simple FTP client and server") project through 96c1a35 allows remote attackers to cause a denial of service (memory consumption) by engaging in client activity, such as establishing and then terminating a connection. This occurs because malloc is used but free is not.
Which versions are affected by CVE-2023-22551?
It affects 1 product.
Products include Ftp Project Ftp.
How do I fix CVE-2023-22551?
No fix has been published for CVE-2023-22551 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-2023-22551 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-22551 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-524p-63p7-chqx.