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Date: Tue, 17 Jul 2012 12:08:04 +0200
From: Florian Weimer <>
Subject: Re: libdbus hardening

On 07/17/2012 12:02 PM, Solar Designer wrote:
> On Wed, Jul 11, 2012 at 04:12:09PM +0200, yersinia wrote:
>> But exists in other linux libc implementation similar more secure
>> alternatives to getenv ?
> I'm not aware of other Linux libc's having this, but I proposed
> __secure_getenv() (as well as OpenBSD'ish issetugid() or/and
> __libc_enable_secure) for addition to musl.  (No, I did not write any
> code for this.  I merely told Rich and heard back.)  I may be biased,
> but I think that musl is the main alternative to glibc on Linux now.

Note that GNU libc will likely change the name to secure_getenv. 
Upstream does not want to document __secure_getenv as-is.

See the discussion here:

Florian Weimer / Red Hat Product Security Team

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