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Date: Wed, 08 Jan 2014 09:11:10 -0800
From: Russ Allbery <>
Subject: Re: Re: CVE Request: graphviz: stack-based buffer overflow in yyerror()

Sebastian Krahmer <> writes:

> Funny enough that tools like graphviz qualify for CVE assignments :)

> Do not get me wrong, I really like graphviz, its a great tool and I use
> it myself; but probably like 2 scientists or 1 anti-terror fed plotting
> his graphs in the whole world would be targeted attacked using dot files
> sent via mail I guess.

I wouldn't be so certain.  :)  I've gotten dot files in email a fair bit
while working on free software projects since it's a really useful way of
expressing dependency trees and similar structures.  So the possibility of
a targetted exploit is there, particularly given that mailing list traffic
is generally completely unauthenticated.  It's not hard for someone to
pretend to be another participant and mail a doctored dot file to a
development team.  The deception would probably be discovered reasonably
quickly, but possibly not before damage was done.

Russ Allbery (              <>

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