Date: Fri, 17 Sep 2021 18:18:48 +0200 From: Solar Designer <solar@...nwall.com> To: Oleksandr Tymoshenko <ovt@...gle.com> Cc: oss-security@...ts.openwall.com, Kees Cook <keescook@...omium.org> Subject: Re: Containers-optimized OS (COS) membership in the linux-distros list Hello Oleksandr, You posted this from @google.com, which probably means many subscribers didn't receive the message because of that domain's strict DMARC policy. So I fully quote your message below for others to possibly comment. BTW, you will similarly need to be posting from another domain (e.g., gmail.com) to the linux-distros list. Overall, your proposal looks reasonable to me at first glance. Please also propose which specific contributing-back task(s) your team would like to help with. Thanks, Alexander On Thu, Sep 16, 2021 at 11:12:21PM -0700, Oleksandr Tymoshenko wrote: > Hello, > > > I???d like to propose Container-Optimized OS (COS) for membership in > linux-distros. Text below addresses items listed in the ???Membership > criteria??? section of > https://oss-security.openwall.org/wiki/mailing-lists/distros > > > > 1. Be an actively maintained Unix-like operating system distro with > > substantial use of Open Source components > > > Container-Optimized OS (COS) s a Chromium OS based > server operating system. Google distributes COS as a pre-built cloud image, > but also provides sources for users to customize and build their own > specialized versions of the OS. > > > URL: https://cloud.google.com/container-optimized-os > > > Source code: https://cos.googlesource.com > Build instructions: > https://cloud.google.com/container-optimized-os/docs/how-to/building-from-open-source > > > COS has a 6-month major release cadence and 3 LTS branches with their own > 3-month refresh cadence. Critical security vulnerabilities addressed in > patch releases, independently from the release/refresh cycle. > > > Release notes: https://cloud.google.com/container-optimized-os/docs/release-notes > > > > 2. Have a user base not limited to your own organization > > > COS is available directly to external customers as a base VM image for the > Google Compute Engine and indirectly as a base OS for managed services such > as Google Kubernetes Engine (GKE), CloudSQL, Google Cloud Filestore. > Overall usage of COS adds up to millions of cloud instances. > > > > 3. Have a publicly verifiable track record, dating back at least 1 year and > > continuing to present day, of fixing security issues (including some that > > had been handled on (linux-)distros, meaning that membership would have > > been relevant to you) and releasing the fixes within 10 days (and > > preferably much less than that) of the issues being made public (if it > > takes you ages to fix an issue, your users wouldn't substantially benefit > > from the additional time, often around 7 days and sometimes up to 14 days, > > that list membership could give you) > > > Some of the examples of COS reacting quickly (less than 7 days) to CVEs > with high impact: > > > CVE-2021-33909(Sequoia): > https://cloud.google.com/container-optimized-os/docs/release-notes/m85#cos-85-13310-1308-6 > > > CVE-2020-14308, CVE-2020-14311, CVE-2020-15705 (GRUB2): > https://cloud.google.com/container-optimized-os/docs/release-notes/m81#cos-81-12871-1185-0 > > > CVE-2020-14386: > https://cloud.google.com/container-optimized-os/docs/release-notes/m81#cos-81-12871-1196-0 > > > Having access to embargoed CVEs would have helped us to plan and prepare > for patch releases in a more proactive way. > > > > 4. Not be (only) downstream or a rebuild of another distro (or else we need > > convincing additional justification of how the list membership would enable > > you to release fixes sooner, presumably not relying on the upstream distro > > having released their fixes first?) > > > Although COS is derived from Chromium OS we switched to maintaining our own > kernel package that tracks more recent versions of the Linux kernel. We > make an effort to keep it as close to the upstream kernel as possible. We > also track releases of other open-source packages relevant for our use > cases independently from Chromium OS or Gentoo. > > > > 5. Be a participant and preferably an active contributor in relevant public > > communities (most notably, if you're not watching for issues being made > > public on oss-security, which are a superset of those that had been handled > > on (linux-)distros, then there's no valid reason for you to be on > > (linux-)distros) > > > We are actively monitoring multiple sources of information about > vulnerabilities but haven???t contributed much directly because we didn't > have anything to add to discussions. We contributed to OSTIF Linux Kernel > Vuln Reporting/Remediation Practices review, and also monitor the > oss-security indirectly via ChromeOS. > > > > > > 6. Accept the list policy: > > http://oss-security.openwall.org/wiki/mailing-lists/distros#list-policy-and-instructions-for-members > > > Please consider this note as acceptance of the list policy. > > > > 7. Be able and willing to contribute back, preferably in specific ways > > announced in advance (so that you're responsible for a specific area and so > > that we know what to expect from which member), and demonstrate actual > > contributions once you've been a member for a while: > > http://oss-security.openwall.org/wiki/mailing-lists/distros#contributing-back > > > Our team can perform administrative tasks that benefit the wider community > and also can draw upon Google???s internal kernel expertise if required (on > the need-to-know basis, maintaining confidentiality). > > > > 8. Be able and willing to handle PGP-encrypted e-mail > > > We???ll provide relevant GPG keys separately if our membership is accepted. > > > > 9. Have someone already on the private list, or at least someone else who > > has been active on oss-security for years but is not affiliated with your > > distro nor your organization, vouch for at least one of the people > > requesting membership on behalf of your distro (then that one vouched-for > > person will be able to vouch for others on your team, in case you'd like > > multiple people subscribed) > > > Kees Cook (Cc-ed) can vouch for the proposed candidates. > > > Thank you
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