CVE-2009-5013 Uncontrolled Resource Consumption in pyftpdlib
Authenticated remote attackers can cause a denial of service via memory exhaustion in pyftpdlib by sending a QUIT command during data transfer.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-5013?
CVE-2009-5013 is a medium-severity denial of service vulnerability in n/a, published on 19 Oct 2010. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Memory leak in the on_dtp_close function in ftpserver.py in pyftpdlib before 0.5.2 allows remote authenticated users to cause a denial of service (memory consumption) by sending a QUIT command during a data transfer.
Weakness: CWE-399
Which versions are affected by CVE-2009-5013?
3 open source packages ship an affected version, including pyftpdlib. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
pyftpdlib PyPI | All versions | 0.5.2 |
pyftpdlib PyPI | All versions | 0.5.2 |
pyftpdlib PyPI | All versions | 0.5.2 |
Products include G.rodola Pyftpdlib.
How do I fix CVE-2009-5013?
Upgrade pyftpdlib to 0.5.2 or later.
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-2009-5013 being exploited?
There is no known exploitation of CVE-2009-5013 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2009-5013, GHSA-8gv6-x88p-3f6h, PYSEC-2010-10.