CVE-2006-6171 Memory corruption in n/a
ProFTPD FTP server suffers from a buffer underflow when CommandBufferSize is configured, potentially allowing remote attackers to cause denial of service or execute code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2006-6171?
CVE-2006-6171 is a high-severity memory corruption vulnerability in n/a, published on 30 Nov 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ProFTPD 1.3.0a and earlier does not properly set the buffer size limit when CommandBufferSize is specified in the configuration file, which leads to an off-by-two buffer underflow. NOTE: in November 2006, the role of CommandBufferSize was originally associated with CVE-2006-5815, but this was an error stemming from a vague initial disclosure. NOTE: ProFTPD developers dispute this issue, saying that the relevant memory location is overwritten by assignment before further use within the affected function, so this is not a vulnerability
Which versions are affected by CVE-2006-6171?
It affects 1 product.
Products include Proftpd Project Proftpd.
How do I fix CVE-2006-6171?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2006-6171 being exploited?
There is no known exploitation of CVE-2006-6171 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2006-6171, DSA-1218-1, GHSA-fg3g-4994-3829.