oss-security - Re: GNU ed heap overflow

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Date: Mon, 1 Sep 2008 07:05:54 +0000
From: Tavis Ormandy <taviso@....lonestar.org>
To: oss-security@...ts.openwall.com
Subject: Re: GNU ed heap overflow

If you can specify an arbitrary filename, can't you execute commands
anyway?

$ ed '!ls>&2'
bin   dev  home  lost+found  misc  net  proc  sbin     srv  tmp  var
boot  etc  lib   media       mnt   opt  root  selinux  sys  usr
0

Thanks, Tavis.

On Sun, Aug 31, 2008 at 01:13:01PM +0200, Florian Weimer wrote:
> Can we get a CVE for this?  The overflow is in the command line
> processing, and also affects the red command.
> 
> | Alfredo Ortega from Core Security Technologies has found that GNU Ed
> | is vulnerable to a heap overflow.
> 
> <http://lists.gnu.org/archive/html/bug-ed/2008-06/msg00000.html>

-- 
-------------------------------------
taviso@....lonestar.org | finger me for my gpg key.
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