October 30, 2009, 5:00 pm
It has been discovered that proftpd-dfsg, a virtual-hosting FTP daemon, does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 client certificate, when the dNSNameRequired TLS option is enabled.
For the stable distribution (lenny), this problem has been fixed in version 1.3.1-17lenny4.
For the oldstable distribution (etch), this problem has been fixed in version 1.3.0-19etch3.
Binaries for the amd64 architecture will be released once they are available...