Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 25 Sep 2014 19:43:09 -0400
From: Chet Ramey <>
To: Simon McVittie <>,
Subject: Re: CVE-2014-6271: remote code execution through bash

On 9/25/14, 12:20 PM, Simon McVittie wrote:
> On 25/09/14 16:59, John Haxby wrote:

>> There are lots of things one could do to eliminate that risk, of course,
>> but step back and what are we arguing for?
> I'm arguing that privilege boundaries should take responsibility for
> their nature as a privilege boundary, and not pass the buck to the code
> that they call into.

It doesn't help if some process sets ruid = euid and execs bash, but bash
doesn't import functions from the environment if ruid != euid.

``The lyf so short, the craft so long to lerne.'' - Chaucer
		 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU

Powered by blists - more mailing lists

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.