Stefan Lochbihler has discovered a vulnerability in freeftpd, which can be exploited by malicious users to cause a DoS (Denial of Service).
The vulnerability is caused due to a NULL pointer dereferencing error that exists when parsing the parameter of the PORT command. This is due to the failure to check for a NULL return value from the "strstr()" function when looking for the "," separator. This can be exploited to crash the service.
The vulnerability has been confirmed in version 1.0.10. Other versions may also be affected.
Solution: Grant only trusted users access to the FTP service.
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to email@example.com
Subject: Freeftpd PORT Command Denial of Service Vulnerability
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.