[OE-core] [Openembedded-architecture] OE-Core/Yocto Project's first CVE (CVE-2017-9731)

[Richard Purdie]

On Wed, 2017-06-28 at 13:38 -0400, Scott Murray wrote:
> On Mon, 19 Jun 2017, Richard Purdie wrote:
> 
> > 
> > I suspect this has been missed by some people so I want to spell it
> > out. We have our first CVE in OE-Core itself.
> > 
> > The issue is limited to binary ipks potentially exposing sensitive
> > information through the "Source:" field which contained the full
> > SRC_URI. Those urls could potentially contain sensitive information
> > about servers and credentials.
> > 
> > After discussion, I ended up changing the field to contain the
> > recipe
> > filename (no path). There was talk of filtering the urls however if
> > you
> > try, it becomes clear that sensitive elements can remain and no
> > solution is likely 100% effective. The other package backends don't
> > do
> > this at all so this brings ipk more into line with them. Simply
> > clearing the field doesn't work with the current opkg-utils. It can
> > be
> > changed but the change becomes more invasive.
> > 
> > This fix has been merged to master.
> > 
> > I also did take the decision to backport this change back to
> > pyro/morty/krogoth too. I appreciate this can cause some disruption
> > to
> > people who rely on SRC_URI being in the Source: field however I
> > couldn't see any other realistic way forward.
> I noticed that this wasn't CC'ed to the yocto-security mailing list.
> Was that just an oversight, or should that mailing list be considered
> defunct at this point?

Sorry, it was oversight...

Cheers,

Richard