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Date: Fri, 23 Oct 2015 09:00:29 -0400
From: Robert Watson <>
To: "" <>
Subject: Re: CVE Request: BusyBox tar directory traversal

Okay. How then does one install a tar package that put most of its files
under /usr but also needs to put files under /etc to which there are

On Friday, October 23, 2015, Yves-Alexis Perez <> wrote:

> On ven., 2015-10-23 at 03:01 -0400, Robert Watson wrote:
> > Remember that tar was created primarily for software distribution
> Actually no, it was created to write archives to (magnetic) tapes.
> >  and
> > compressed tar files are most often used to this day for that purpose.
> > Software distribution almost always involves writing files to many
> > different directories at all levels of the filesystem. Symlinks between
> > them are quite common as well.
> Sure, you just don't want them to escape from CWD. There has been example
> of
> this to bypass “safe updates” procedures for example.
> Regards,
> --
> Yves-Alexis


*Trust in truth keeps hope

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