[CentOS-devel] docker, CVE-2019-13139 and announcements for updates in extras

Fri Jun 4 16:12:26 UTC 2021
Johnny Hughes <johnny at centos.org>

On 6/4/21 10:17 AM, Stefan Puiu wrote:
> Hi Jonathan,
> On Fri, Jun 4, 2021 at 4:07 PM Jonathan Billings <billings at negate.org> wrote:
>> On Fri, Jun 04, 2021 at 03:22:09PM +0300, Stefan Puiu wrote:
>>> For a while now, the tool has been complaining that the version of
>>> docker we ship is vulnerable to CVE-2019-13139. As far as I can tell,
>>> we have a version that includes the fix, based on the Red Hat
>>> advisory: https://access.redhat.com/errata/RHBA-2019:3092 says we need
>>> docker-1.13.1-104.git4ef4b30, and we have 204.git0be3e21.
>> They don't understand that
>> docker-1.13.1-204.git0be3e21 > docker-1.13.1-104.git4ef4b30 ?
>> You could point out that CentOS is a rebuild of RHEL so any RHBAs
>> posted for a particular version of RHEL7 applies to the same version
>> in CentOS 7.
> I pointed both things (the newer version and CentOS being a RHEL
> rebuild) to them, so far it seems they weren't convinced.
>>> I'm trying to work with the tool vendor to sort this out. As a
>>> developer, I think checking the code is the best way; I've found the
>>> Docker RH fork on github, which has a RHEL branch that seems to be
>>> used in both CentOS and RHEL
>>> (https://github.com/projectatomic/docker/tree/docker-1.13.1-rhel).
>> https://git.centos.org/rpms/docker/ is where the RPM SPECs, patches
>> and related files are posted.  For example, the one in Extras is:
>> https://git.centos.org/rpms/docker/tree/c7-extras and you can see the
>> commit to import the 104 release here:
>> https://git.centos.org/rpms/docker/c/bcf506d56383fd92ea5e3516f8950c43f44079eb?branch=c7-extras
>> You can look at the commit history for the package:
>> https://git.centos.org/rpms/docker/commits/c7-extras
>> Interestingly, the r104 looks like it failed automatic debranding, and
>> it didn't get properly debranded until Johnny Hughes manually did it
>> in r108.  But I doubt that makes any difference in your issue,
>> although it might have changed any announcements at the time.
> I had found the c7-extras branch, I should've probably mentioned that
> in the first place. It's there that I found the github link; see for
> example the SPECS/docker.spec change, there is this line:
> # docker
> %global git_docker https://github.com/projectatomic/docker
> - %global commit_docker 7f2769b9e0572f62730d91e79e674efd59b7e234
> + %global commit_docker 4ef4b30c57f05be26c9387ef0828e86c2ed543b8
> So I just went to the github link and searched for the new commit.
> Probably from there (or from the list of branches) I found the RHEL /
> CentOS branch.
>>> However, probably the tool people have some kind of different process
>>> in place. So my question is: is it reasonable to expect any bugfix or
>>> security update fetched from RHEL to CentOS to come with an
>>> announcement on the centos-announce mailing list? Is there a filter
>>> for some packages? I see docker is in extras, not in CentOS-Base,
>>> maybe updates to those are not announced?
>> I don't see any posts to any lists during the timeframe that it was
>> imported and published by CentOS.  I'd honestly like to know if
>> there's any particular rules for how centos-announce posts get
>> generated too.  I imagine that now that the Stream releases precede
>> the RHEL package releases, there might be a different set of rules?
>> I tried to find something in the wiki but apparently I searched too
>> many times and it told me to not search so frequently.  Google didn't
>> show anything though.
> I've downloaded the archives of centos-announce since January 2019 and
> grepped for 'docker'. I only see multiple announcements for pcp, which
> includes a pcp-pmda-docker RPM, and a reference to Dockerhub. Nothing
> about docker itself.
> $ zgrep -i docker 20*
> 2019-October.txt.gz:db0fdf9b3d888e40a29f021c3200ed40b2be8c05ea27b429783572b3b80ab1ed
>  pcp-pmda-docker-4.3.2-3.el7_7.x86_64.rpm
> 2019-October.txt.gz:db0fdf9b3d888e40a29f021c3200ed40b2be8c05ea27b429783572b3b80ab1ed
>  pcp-pmda-docker-4.3.2-3.el7_7.x86_64.rpm
> [...]
> 2020-May.txt.gz:b6614b82c38dbe8d4de61b81d5d779de7fd13d58c341805dfdb1faa7be86538b
>  pcp-pmda-docker-4.3.2-7.el7_8.x86_64.rpm
> 2021-March.txt.gz:- We are still in discussions on how to push these
> properly to Dockerhub.
> I also think clarifying the process would help.

I build things as they get pushed to git.centos.org .. obviously some
things are more important than others, and extras is less than base ..
also we are going through a CentOS Linux 8 release cycle.

We do not announce Extras updates .. only actual OS updates .. on CentOS
announce .. and then only for CentOS 7 Linux.  So, if something resides
in the os/ or updates/ repositories, and if they get announced here:


Then I announce it.  Any other repos, no announcements.

I don't have anything to do with Dockerhub .. someone else will have to
answer that.