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Message-ID: <20140614161401.GA12447@openwall.com>
Date: Sat, 14 Jun 2014 20:14:01 +0400
From: Solar Designer <solar@...nwall.com>
To: musl@...ts.openwall.com
Subject: Re: Binaries compiled with musl (1.1.2) are vulnerable to an ancient ldd exploit
Rich,
On Sat, Jun 14, 2014 at 12:02:43PM -0400, Rich Felker wrote:
> (Actually, I think
> this issue may be fixed in modern glibc ldd, but I'm not sure.)
IIRC, we have this worked around in patched glibc's ldd on Owl by having
it always explicitly run the program through /lib/ld-linux.so.2, which
obviously does interpret its env vars that the ldd script sets. That ldd
script assumes glibc's /lib/ld-linux.so.2 anyway (env vars, exit codes).
I don't know why upstream glibc would not(?) patch the issue that way.
It's a trivial change. Is there some WONTFIX for this in glibc Bugzilla
already? Sounds like material for your blog if so. ;-)
Alexander
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