Updated: socat, 2.0.0-b7-1

Andrew Schulman schulman.andrew@epa.gov
Fri May 9 07:24:00 GMT 2014

Two new versions of socat are available in the Cygwin distribution:  - current
  2.0.0-b7-1 - test

These are new upstream releases, that address a security vulnerability
(possible buffer overflow) in previous versions.

Security advisory: 
Upstream changelog:

These versions also add IPv6 support (TCP6, TCP6-LISTEN, UDP6,
UDP6-DATAGRAM, ...) for the first time in Cygwin.  This feature hasn't
been tested much yet, so please test and report any findings (good or
bad) here.

socat is a relay for bidirectional data transfer between two independent
data channels. Each of these data channels may be a file, pipe, device
(serial line etc. or a pseudo terminal), a socket (UNIX, IP4, IP6 - raw,
UDP, TCP), an SSL socket, proxy CONNECT connection, a file descriptor
(stdin etc.), the GNU line editor (readline), a program, or a
combination of two of these. These modes include generation of
'listening' sockets, named pipes, and pseudo terminals. socat can be
used, e.g., as TCP port forwarder (one-shot or daemon), as an external
socksifier, for attacking weak firewalls, as a shell interface to UNIX
sockets, IP6 relay, for redirecting TCP oriented programs to a serial
line, to logically connect serial lines on different computers, or to
establish a relatively secure environment (su and chroot) for running
client or server shell scripts with network connections.

Andrew E. Schulman


To update your installation, click on the "Install Cygwin now" link on
the http://cygwin.com/ web page.  This downloads setup.exe to your
system.  Then, run setup and answer all of the questions.


If you want to unsubscribe from the cygwin-announce mailing list, look
at the "List-Unsubscribe: " tag in the email header of this message.
Send email to the address specified there.  It will be in the format:


If you need more information on unsubscribing, start reading here: 


Please read *all* of the information on unsubscribing that is available
starting at this URL.

More information about the Cygwin-announce mailing list