CVE-2007-6263 Information

Description

The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17 when certain modifications to support SSL have been introduced calls fclose on an uninitialized file stream which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server’s SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.

Reference

http://bugs.gentoo.org/show_bug.cgi?id=199206 http://marc.info/?l=full-disclosure&m=119704348003382&w=2 http://osvdb.org/41191 http://secunia.com/advisories/28697 http://www.gentoo.org/security/en/glsa/glsa-200801-17.xml http://www.securityfocus.com/bid/26763