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Date:      Tue, 30 Sep 2014 14:54:12 -0400
From:      Jung-uk Kim <jkim@FreeBSD.org>
To:        Bryan Drewery <bdrewery@FreeBSD.org>, Mike Tancsa <mike@sentex.net>
Cc:        freebsd-security <freebsd-security@freebsd.org>, freebsd-ports <freebsd-ports@freebsd.org>
Subject:   Re: bash velnerability
Message-ID:  <542AFC54.9010405@FreeBSD.org>
In-Reply-To: <5429851B.8060500@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> <54298266.1090201@sentex.net> <5429851B.8060500@FreeBSD.org>

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On 2014-09-29 12:13:15 -0400, Bryan Drewery wrote:
> On 9/29/2014 11:01 AM, Mike Tancsa wrote:
>> 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
> 
> Yes we have not applied the RedHat fix for CVE-2014-7186 or CVE-2014-7187.

Applying the first patch for parse.y from the following post passed the
tests for me.

http://www.openwall.com/lists/oss-security/2014/09/25/32

In fact, all major Linux distros seem to use it now.

FYI,

Jung-uk Kim



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