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Date: Fri, 20 Feb 2015 00:14:47 -0800
From: Paul Pluzhnikov <ppluzhnikov@...gle.com>
To: Rich Felker <dalias@...c.org>
Cc: oss-security@...ts.openwall.com
Subject: Re: Fixing the glibc runtime linker
On Thu, Feb 19, 2015 at 11:57 PM, Rich Felker <dalias@...c.org> wrote:
> How is an empty or relative rpath easy?
all: foo
foo: foo.c
${CC} -Wl,-rpath=${VAR} -o $@ $^
If VAR is unset, or set to relative path, resulting binary will be "bad".
Quoting original Tim's message:
> Over the last couple of years I've spent a good deal of time dealing with
> vendors who, for one reason or another have shipped binaries where it is
> possible to inject "untrusted" code into running processes, notably but not
> exclusively via DT_RPATH.
I can easily believe that such binaries are fairly common.
--
Paul Pluzhnikov
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