svn commit: r369684 - in head/shells/bash: . files

[Bryan Drewery]

On 10/1/2014 11:42 AM, Jung-uk Kim wrote:
> On 2014-09-30 23:35:13 -0400, Bryan Drewery wrote:
>> Author: bdrewery Date: Wed Oct  1 03:35:12 2014 New Revision:
>> 369684 URL: http://svnweb.freebsd.org/changeset/ports/369684 QAT:
>> https://qat.redports.org/buildarchive/r369684/
> 
>> Log: Add RedHat's patch for CVE-2014-7186, commonly known as
>> "redir_stack" overflow, which has not been shown to be as critical
>> as "shellshock" currently.
> 
>> Security:	CVE-2014-7186
> 
> Thanks!
> 
> BTW, this patch also fixes CVE-2014-7187.
> 
> http://www.openwall.com/lists/oss-security/2014/09/26/2
> 
> FYI, 4.3 Patchlevel 27 fixed two more CVEs, i.e., CVE-2014-6277 and
> CVE-2014-6278.
> 
> https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6277
> https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6278
> 
> Jung-uk Kim
> 

Well those are still an issue in 4.3.28 if you control the environment
fully. I.e., if you can pass BASH_FUNC_name%% then it will still
crash/execute code. Chet is working on patches for them,
http://www.openwall.com/lists/oss-security/2014/10/01/25.

Our bash is immune to this due to disabling function imports. The
bashcheck script is wrong currently though and I've submitted a pull
request to fix it here: https://github.com/hannob/bashcheck/pull/23

I've just committed 4.3.28 as well.


-- 
Regards,
Bryan Drewery

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