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From: Colin Walters <walters@debian.org>
Subject: Re: many packages write to `temporary-file-directory' insecurely
Date: 05 Apr 2002 02:30:36 -0500	[thread overview]
Message-ID: <1017991836.27236.40.camel@space-ghost> (raw)
In-Reply-To: <200203310124.g2V1Ot110614@aztec.santafe.edu>

On Sat, 2002-03-30 at 20:24, Richard Stallman wrote:
>     My concern is that since Emacs is often used on large, multiuser
>     systems, many of which use disk quotas, a setgid program without any
>     limits on the files it creates would be a way for users to get around
>     their disk quotas.  
> 
> One solution for that is to limit the format of the data
> that goes in the file so as to specialize it for game scores.

Well, I guess what bugs me about this is presumably people will want to
have at least their names and/or email addresses in there, and I don't
see how to restrict the "format" of the data such that its total size is
limited.  

On the other hand, I've realized it's a good idea to put the actual
username (or at least the uid) into the score lines, so if someone is
using it to store a substantial amount of data, then it will be
blatantly obvious who is doing it.

By the way, I'm almost done with the autoconf magic necessary to support
this; it's been a bit more painful than I thought.

  reply	other threads:[~2002-04-05  7:30 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-01  1:15 many packages write to `temporary-file-directory' insecurely Colin Walters
2002-03-02 11:52 ` Pavel Janík
2002-03-02 21:12   ` Colin Walters
2002-03-02 23:13     ` Pavel Janík
2002-03-03 17:18       ` Stefan Monnier
2002-03-03 20:36         ` Al Petrofsky
2002-03-04  0:07           ` Stefan Monnier
2002-03-04 23:41           ` Richard Stallman
2002-03-05  2:26             ` Al Petrofsky
2002-03-05 15:15               ` Stefan Monnier
2002-03-05 19:57                 ` Al Petrofsky
2002-03-05 21:58               ` Richard Stallman
2002-03-04 23:40         ` Richard Stallman
2002-03-05  4:30           ` Colin Walters
2002-03-05 10:20           ` Andreas Schwab
2002-03-05 15:20             ` Stefan Monnier
2002-03-05 19:07               ` Richard Stallman
2002-03-06  4:40               ` Colin Walters
2002-03-06  7:35                 ` Colin Walters
2002-03-06 16:59                   ` Stefan Monnier
2002-03-07  2:40                     ` Colin Walters
2002-03-07  6:00                       ` Eli Zaretskii
2002-03-08  9:08                   ` Richard Stallman
2002-03-08  9:08                   ` Richard Stallman
2002-03-10 10:46                     ` Colin Walters
2002-03-11  9:01                       ` Richard Stallman
2002-03-17 22:08                         ` Colin Walters
2002-03-18 20:06                           ` Richard Stallman
2002-03-18 22:36                             ` Colin Walters
2002-03-18 23:49                               ` Steve Kemp
2002-03-19  0:31                                 ` Colin Walters
2002-03-19  6:22                                 ` Pavel Janík
2002-03-20  5:10                               ` Richard Stallman
2002-03-27 23:46                                 ` Colin Walters
2002-03-31  1:24                                   ` Richard Stallman
2002-04-05  7:30                                     ` Colin Walters [this message]
2002-04-05 23:41                                       ` Richard Stallman
2002-03-06 16:59                 ` Stefan Monnier
2002-03-06 19:05                   ` Colin Walters
2002-03-08  9:07                 ` Richard Stallman
2002-03-08 18:52                   ` Colin Walters
2002-03-09 10:49                     ` Richard Stallman
2002-03-03 14:39   ` Richard Stallman
2002-03-04  4:08 ` Richard Stallman
2002-03-04  4:08 ` Richard Stallman
2002-03-04  4:50   ` Colin Walters

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