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Re: out-of-bound read in brackmatch function in "sm_loop.c"


From: Chet Ramey
Subject: Re: out-of-bound read in brackmatch function in "sm_loop.c"
Date: Wed, 2 Nov 2016 14:31:23 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.4.0

On 11/2/16 8:06 AM, op7ic \x00 wrote:

> Bash Version: 4.4
> Patch Level: 0
> Release Status: release
> 
> Description:
> 
> A out-of-bound read was identified in "brackmatch" function in
> "sm_loop.c" source file when parsing specially crafted bash source
> file. The impact is low and will just result in crashing the
> interpreter. 

Thanks for the report.  This will be fixed in the next devel branch
push, and I will probably release a bash-4.4 for it.

Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/



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