Package: ftp-ssl Version: 0.17.23+0.2-1+b1 Severity: important It has remained unobserved since years back, that once the main connection is protected by SSL, an attempt to build a proxy connection will block the proxy session:
$ ftp -v -d localhost ... ---> AUTH SSL 234 AUTH SSL OK. [SSL Cipher AES256-GCM-SHA384] ---> USER egon ... ---> SYST ... Using binary mode to transfer files. ftp> proxy open vbox Connected to vbox. <nl> ^C ssl_getc: SSL_read failed -1 = 4 ftp> The ordinary session is still functional, but the proxied connection attempt must be forcefully interrupted. Quickly perusing the source code, including SSL patching, makes it clear that exactly one control channel is available with SSL, and that the same connection context is applied also on the proxy session, thus unveiling the observed failure. In conclusion, major updates are needed to resolve the issue, including modification to pswitch() in order that the primary and proxy session are interchanged correctly as demand arises. Best regards, Mats Erik Andersson -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
