Affected: Canon GP300 using WebSpooler v4.5.062 (fr), other versions ?
Risk: High
Remote: Yes

Description:
A simple http request can crash the whole print server.
Request is "GET /" on tcp/80
After sending "GET /" a reboot is needed to print again or to take hand on
the print server.

The web server seems to be Apache/1.0.3 (banner is returned in some
conditions).
I did not find this vulnerability for Apache/1.0.3 on securityfocus so this
banner is maybe a fake or the code has been changed.

Canon has been contacted.
They said message has been forwarded to services concerned by this
vulnerability (dev ?).
No news since.