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Date:      Mon, 29 Sep 2014 12:01:42 -0400
From:      Mike Tancsa <mike@sentex.net>
To:        Bryan Drewery <bdrewery@freebsd.org>
Cc:        freebsd-security <freebsd-security@freebsd.org>, freebsd-ports <freebsd-ports@freebsd.org>
Subject:   Re: bash velnerability
Message-ID:  <54298266.1090201@sentex.net>
In-Reply-To: <5425D427.8090309@FreeBSD.org>
References:  <CAHFU5H5WOnAXuFmfQEGkTvwoECATTCC3eKYE3yts%2BBqh1M_8ww@mail.gmail.com>	<00000148ab969845-5940abcc-bb88-4111-8f7f-8671b0d0300b-000000@us-west-2.amazonses.com>	<54243F0F.6070904@FreeBSD.org>	<54244982.8010002@FreeBSD.org>	<16EB2C50-FBBA-4797-83B0-FB340A737238@circl.lu>	<542596E3.3070707@FreeBSD.org> <CAHcXP%2Bdx2etYgQPNiAxk2P68Z-4j%2BbTvdMoHfz%2BxKsBDKh9Z9g@mail.gmail.com> <5425999A.3070405@FreeBSD.org> <5425A548.9090306@FreeBSD.org> <5425D427.8090309@FreeBSD.org>

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On 9/26/2014 5:01 PM, Bryan Drewery wrote:
> On 9/26/2014 12:41 PM, Bryan Drewery wrote:
>> On 9/26/2014 11:51 AM, Bryan Drewery wrote:
>>> On 9/26/2014 11:46 AM, Bartek Rutkowski wrote:
>>>> Apparently, the full fix is still not delivered, accordingly to this:
>>>> http://seclists.org/oss-sec/2014/q3/741
>>>>
>>>> Kind regards,
>>>> Bartek Rutkowski
>>>>
>>>
>>> I'm pretty sure they call that a "feature". This is a bit different.
>
> I've disabled environment function importing in the port. Using
> --import-functions will allow it to work if you need it.

Hi Bryan,
	With the latest ports, bashcheck still sees some issues with bash. Are 
these false positives on FreeBSD ?

Using
https://raw.githubusercontent.com/hannob/bashcheck/master/bashcheck

Not vulnerable to CVE-2014-6271 (original shellshock)
Not vulnerable to CVE-2014-7169 (taviso bug)
./bashcheck: line 18: 54908 Segmentation fault      (core dumped) bash 
-c "true $(printf '<<EOF %.0s' {1..79})" 2> /dev/null
Vulnerable to CVE-2014-7186 (redir_stack bug)
Test for CVE-2014-7187 not reliable without address sanitizer
Variable function parser inactive, likely safe from unknown parser bugs

	---Mike



-- 
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada   http://www.tancsa.com/



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