Gentoo Archives: gentoo-hardened

From: "Anthony G. Basile" <blueness@g.o>
To: "Francisco Blas Izquierdo Riera (klondike)" <klondike@g.o>, Miroslav Rovis <miro.rovis@××××××××××××××.hr>
Cc: hardened@g.o, gentoo-hardened@l.g.o
Subject: [gentoo-hardened] Re: hardened-sources-4.4.8-r1 mad COW patched?
Date: Tue, 25 Oct 2016 14:12:05
Message-Id: 2de82546-5b32-c2fa-b732-fbc1062c8571@gentoo.org
In Reply to: [gentoo-hardened] Re: hardened-sources-4.4.8-r1 mad COW patched? by "Francisco Blas Izquierdo Riera (klondike)"
1 On 10/25/16 10:10 AM, Francisco Blas Izquierdo Riera (klondike) wrote:
2 > El 25/10/16 a las 12:56, Miroslav Rovis escribió:
3 >> Hi!
4 > Hi Miroslav!
5 >> Due to this bug:
6 >> https://bugs.gentoo.org/show_bug.cgi?id=597554
7 >>
8 >> I can't use the patched 4.7.9 of hardened sources.
9 >>
10 >> hardened-sources-4.4.8-r1 do not appear to me to be mad COW patched.
11 > I guess you are talking about CVE-2016–5195 here. Please correct me if
12 > mistaken.
13 >> I looked up the sources, but am not able to see for sure how to patch
14 >> 4.4.8-r1 myself.
15 >>
16 >> I have just rsynced my system and nothing new seems to have happened
17 >> with 4.4.8-r1 yet.
18 > If 4.4.8 gets patched you will find a new revision (i.e. 4.4.8-r2). This
19 > is quite standard Gentoo policy, if a package is modifed after
20 > publication (for example by backporting patches) the revision of the
21 > packet has to be increased so that users will be able to use these when
22 > updating. The only exceptions I know of are the -9999 packages for
23 > bleeding edge trunks and some very minor changes (think for example of a
24 > fix in the build system or a minor documentation fix) which a fix for
25 > CVE-2016–5195 clearly wouldn't be.
26 >
27 > You can read more on the Gentoo project revision policy for ebuilds at
28 > https://devmanual.gentoo.org/general-concepts/ebuild-revisions/
29 >> Is thare patching needed for those stable hardened sources and will
30 >> there be a patch soon?
31 > According to
32 > https://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails
33 > CVE-2016-5195 has been around since 2.6.22 so 4.4.8-r1 is not patched
34 > and is needed to protect against this issue, as for whether there will
35 > or not be a backported patch you should ask blueness but my guess is
36 > that there won't be one unless somebody provides such backported patch
37 > to blueness.
38 >
39 > I'm CCing the Gentoo Hardened user list as other users may be able to
40 > provide more and better input on this.
41 >
42 > Sincerely,
43 > Francisco Blas Izquierdo Riera (klondike)
44 >
45
46 I'm testing 4.7.10 and will have it stabilized soon.
47
48 --
49 Anthony G. Basile, Ph.D.
50 Gentoo Linux Developer [Hardened]
51 E-Mail : blueness@g.o
52 GnuPG FP : 1FED FAD9 D82C 52A5 3BAB DC79 9384 FA6E F52D 4BBA
53 GnuPG ID : F52D4BBA

Replies

Subject Author
Re: [gentoo-hardened] Re: hardened-sources-4.4.8-r1 mad COW patched? Michael Orlitzky <mjo@g.o>
[gentoo-hardened] Re: hardened-sources-4.4.8-r1 mad COW patched? Miroslav Rovis <miro.rovis@××××××××××××××.hr>