[gentoo-hardened] Re: hardened-sources-4.4.8-r1 mad COW patched?

[Miroslav Rovis]

(the first message I sent to hardened@g.o but I meant to send to
the list, so resending)
On 161025-10:11-0400, Anthony G. Basile wrote:
> On 10/25/16 10:10 AM, Francisco Blas Izquierdo Riera (klondike) wrote:
> > El 25/10/16 a las 12:56, Miroslav Rovis escribió:
> >> Hi!
> > Hi Miroslav!
> >> Due to this bug:
> >> https://bugs.gentoo.org/show_bug.cgi?id=597554
> >>
> >> I can't use the patched 4.7.9 of hardened sources.
> >>
> >> hardened-sources-4.4.8-r1 do not appear to me to be mad COW patched.
> > I guess you are talking about CVE-2016–5195 here. Please correct me if
> > mistaken.
> >> I looked up the sources, but am not able to see for sure how to patch
> >> 4.4.8-r1 myself.
> >>
> >> I have just rsynced my system and nothing new seems to have happened
> >> with 4.4.8-r1 yet.
> > If 4.4.8 gets patched you will find a new revision (i.e. 4.4.8-r2). This
> > is quite standard Gentoo policy, if a package is modifed after
> > publication (for example by backporting patches) the revision of the
> > packet has to be increased so that users will be able to use these when
> > updating. The only exceptions I know of are the -9999 packages for
> > bleeding edge trunks and some very minor changes (think for example of a
> > fix in the build system or a minor documentation fix) which a fix for
> > CVE-2016–5195 clearly wouldn't be.
> >
> > You can read more on the Gentoo project revision policy for ebuilds at
> > https://devmanual.gentoo.org/general-concepts/ebuild-revisions/
> >> Is thare patching needed for those stable hardened sources and will
> >> there be a patch soon?
> > According to
> > https://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails
> > CVE-2016-5195 has been around since 2.6.22 so 4.4.8-r1 is not patched
> > and is needed to protect against this issue, as for whether there will
> > or not be a backported patch you should ask blueness but my guess is
> > that there won't be one unless somebody provides such backported patch
> > to blueness.
> >
> > I'm CCing the Gentoo Hardened user list as other users may be able to
> > provide more and better input on this.
> >
> > Sincerely,
> > Francisco Blas Izquierdo Riera (klondike)
> >
>
> I'm testing 4.7.10 and will have it stabilized soon.
>
> --
> Anthony G. Basile, Ph.D.
> Gentoo Linux Developer [Hardened]
> E-Mail    : blueness@g.o
> GnuPG FP  : 1FED FAD9 D82C 52A5 3BAB  DC79 9384 FA6E F52D 4BBA
> GnuPG ID  : F52D4BBA

Professor Basile,

it's always a privilege reading from you, but do you mean the bug:
> >> https://bugs.gentoo.org/show_bug.cgi?id=597554
will be fixed too?

Regards!
-- 
Miroslav Rovis
Zagreb, Croatia
http://www.CroatiaFidelis.hr