Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Wed, 24 Feb 2016 16:56:09 -0500
From: Fernando Muñoz <>
Subject: Re: CVE Request: bash-completion: dequote command injection

Hello Eric,

I never mentioned privilege escalation.

This issue how ever could appear when a different application uses
user input and calls "dequote" function that not only dequotes, but
also executes it as a command. If mitre doesn't consider it CVE worth,
that's OK!


On Wed, Feb 24, 2016 at 3:58 PM, Eric Blake <> wrote:
> On 02/24/2016 12:08 PM, Fernando Muñoz wrote:
>> Marcelo Echeverria and Fernando Muñoz discovered that the dequote
>> function included in bash-completion allows to execute arbitrary
>> commands since it uses the eval function to call printf and perform
>> the actual dequoting. bash-completion is included on Debian, Ubuntu
>> OpenSuse [1] and probably other distros.
> But what is the privilege escalation?  This is no different than
> incorrectly using 'eval' in a shell script - you may have buggy code,
> and have an easy-to-trigger bug, but if you can't escalate privileges,
> how it is a CVE?
> --
> Eric Blake   eblake redhat com    +1-919-301-3266
> Libvirt virtualization library

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.