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Re: [Full-disclosure] The GNU C library dynamic linker expands $ORIGIN in setuid library search path
- To: full-disclosure@xxxxxxxxxxxxxxxxx
- Subject: Re: [Full-disclosure] The GNU C library dynamic linker expands $ORIGIN in setuid library search path
- From: Tavis Ormandy <taviso@xxxxxxxxxxxxx>
- Date: Wed, 20 Oct 2010 13:19:31 +0200
Louis Granboulan <louis.granboulan.security@xxxxxxxxx> wrote:
> However, it is quite clear to me that the current behaviour is
> inconsistent and is the reason of this security flaw. We see $ ls -l
> /proc/self/fd/3 pretend that it is a symbolic link to a file that does not
> exist, and $ ls -lL /proc/self/fd/3 show a setuid file.
>
>
Louis, the commands specified in the advisory were intended to help
illustrate the problem, not be a replacement for any analysis. Your
questions were anticipated, and answered in the Notes section.
Next time I will put the Notes section at the top ;-)
Tavis.
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