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Date: Tue, 16 Oct 2012 11:51:42 -0400
From: Daniel Kahn Gillmor <dkg@...thhorseman.net>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: ruby file creation due in insertion
of illegal NUL character
On 10/16/2012 08:40 AM, Matthias Weckbecker wrote:
> Technically, this would also apply to Perl (at least with 5.12.3).
It's also the case with perl 5.14.2 (just tested). :/
on the other hand, python and php seem to both have some sort of an
internal check in place, so there's a difference of expectation somewhere:
0 dkg@pip:~$ python -c 'f = open("python\0foo"); f.write("test");'
Traceback (most recent call last):
File "<string>", line 1, in <module>
TypeError: file() argument 1 must be encoded string without NULL bytes,
not str
1 dkg@pip:~$
0 dkg@pip:~$ echo | php -B 'if ($x = fopen("php\0foo", "w")) fwrite($x,
"test");'
PHP Warning: fopen() expects parameter 1 to be a valid path, string
given in Command line begin code on line 1
0 dkg@pip:~$
hth,
--dkg
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