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.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Link | Tags |
---|---|
http://www.securityfocus.com/bid/26763 | vdb entry |
http://secunia.com/advisories/28697 | third party advisory |
http://www.gentoo.org/security/en/glsa/glsa-200801-17.xml | vendor advisory |
http://marc.info/?l=full-disclosure&m=119704348003382&w=2 | mailing list |
http://bugs.gentoo.org/show_bug.cgi?id=199206 | exploit |
http://osvdb.org/41191 | vdb entry |