CVE-2006-6171
First published: Thu Nov 30 2006(Updated: )
** DISPUTED ** 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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ProFTPD | <=1.3.0a |
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Reference Links
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=214820
- http://proftp.cvs.sourceforge.net/proftp/proftpd/src/main.c?r1=1.292&r2=1.293&sortby=date
- http://www.debian.org/security/2006/dsa-1218
- http://www.debian.org/security/2006/dsa-1222
- http://www.gentoo.org/security/en/glsa/glsa-200611-26.xml
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:217-1
- http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.502491
- http://secunia.com/advisories/23174
- http://secunia.com/advisories/23179
- http://secunia.com/advisories/23184
- http://secunia.com/advisories/23207
- http://www.trustix.org/errata/2006/0070
- http://secunia.com/advisories/23329
- http://www.openpkg.com/security/advisories/OpenPKG-SA-2006.035.html
Frequently Asked Questions
What is the severity of CVE-2006-6171?
CVE-2006-6171 has a low severity rating due to its buffer underflow vulnerability in ProFTPD.
How do I fix CVE-2006-6171?
To fix CVE-2006-6171, ensure you upgrade to ProFTPD version 1.3.1 or later where the issue is resolved.
What versions of ProFTPD are affected by CVE-2006-6171?
ProFTPD version 1.3.0a and earlier versions are affected by CVE-2006-6171.
What is the nature of the vulnerability in CVE-2006-6171?
CVE-2006-6171 is a buffer underflow vulnerability caused by improper buffer size limit settings.
Is CVE-2006-6171 actively being exploited?
At the time of reporting, CVE-2006-6171 was disputed, and there have been no confirmed active exploits.
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