CVE-2008-1483 cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1483 OpenSSH 4.3p2, and probably other versions, allows local users to hijack forwarded X connections by causing ssh to set DISPLAY to :10, even when another process is listening on the associated port, as demonstrated by opening TCP port 6010 (IPv4) and sniffing a cookie sent by Emacs.