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Date: Fri, 07 Sep 2012 11:29:33 -0600
From: Jeff Law <>
To: Kurt Seifried <>
CC:, Jan Lieskovsky <>,
        "Steven M. Christey" <>,
        Florian Weimer <>, Jakub Jelinek <>
Subject: Re: CVE Request -- glibc: strcoll() integer overflow
 leading to buffer overflow + another alloca() stack overflow issue (upstream
 #14547 && #14552)

On 09/07/2012 11:21 AM, Kurt Seifried wrote:
>> 2) Issue #2 (mentioned here only for completeness, but I am not of
>> the opinion this should receive a CVE identifier. See argumentation
>> below [but open to glibc upstream / others to disprove it]).
> I will hold off on issuing a CVE for this then. Anyone want to weigh in?
>> alloca() stack overflow (first issue from the report below)
>> Upstream bug report: [3]
>> If I have looked correctly this is expected / known behaviour of
>> alloca() - from the manual page: [4]
Just because it's known/expected behaviour doesn't mean it's not a 
potential attack vector.  Blowing out the stack is definitely a vector 
for attack:


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