Full Disclosure mailing list archives
Re: Possibility to exploit bash "*" processing
From: Andrew Farmer <andfarm () gmail com>
Date: Wed, 21 Sep 2011 11:36:32 -0700
On 2011-09-21, at 09:55, Valdis.Kletnieks () vt edu wrote:
On Wed, 21 Sep 2011 16:01:24 +0300, Dan Carpenter said:Seems like a good time to promote David Wheeler's filename proposal: http://www.dwheeler.com/essays/fixing-unix-linux-filenames.htmlUnfortunately, David Wheeler's proposal has some implementation issues: 1. Forbid/escape ASCII control characters (bytes 1-31 and 127) in filenames, including newline, escape, and tab. 3. Forbid/escape filenames that aren't a valid UTF-8 encoding. The problem is that the UTF-8 codespace consists *mostly* of multibyte characters, wherein at least one of the bytes, when considered by itself, is an ASCII control character.
Not true - the multibyte sequences in UTF-8 text consist entirely of high-bit characters (0xC2 - 0xF4 initial, 0x80 - 0xBF continuation). All characters below 0x80, including ASCII control characters, are always mapped directly to the corresponding codepoints. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Possibility to exploit bash "*" processing Kirils Solovjovs (Sep 20)
- Re: Possibility to exploit bash "*" processing Valdis . Kletnieks (Sep 20)
- Re: Possibility to exploit bash "*" processing GloW - XD (Sep 20)
- Re: Possibility to exploit bash "*" processing Cédric Jeanneret (Sep 21)
- Re: Possibility to exploit bash "*" processing Jacqui Caren (Sep 21)
- Re: Possibility to exploit bash "*" processing Dan Carpenter (Sep 21)
- Re: Possibility to exploit bash "*" processing Valdis . Kletnieks (Sep 21)
- Re: Possibility to exploit bash "*" processing Andrew Farmer (Sep 21)
- Re: Possibility to exploit bash "*" processing Valdis . Kletnieks (Sep 21)
- Re: Possibility to exploit bash "*" processing Valdis . Kletnieks (Sep 21)
- Re: Possibility to exploit bash "*" processing Valdis . Kletnieks (Sep 20)