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<a href=/v1.14/docs/setup/getting-started class="btn btn--primary" id=try-istio>Try Istio</a></div></div><form id=search-form class=search name=cse role=search><input type=hidden name=cx value=002184991200833970123:iwwf17ikgf4>
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<button id=search-close title="Cancel search" type=reset aria-label="Cancel search"><svg class="icon menu-close"><use xlink:href="/v1.14/img/icons.svg#menu-close"/></svg></button></form></nav></header><div class=banner-container></div><article class=post itemscope itemtype=http://schema.org/BlogPosting><div class=header-content><h1>Updates to how Istio security releases are handled: Patch Tuesday, embargoes, and 0-days</h1><p>The Product Security working group announces Patch Tuesdays, how 0-days and embargoes are handled, updates to the security best practices page and the notification of the early disclosure list.</p></div><p class=post-author>May 11, 2021 <span>|</span> By Jacob Delgado - Aspen Mesh</p><div><p>While most of the work in the Istio Product Security Working Group is done behind the scenes, we are listening
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to the community in setting expectations for security releases. We understand that it is difficult for mesh
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administrators, operators and vendors to be aware of security bulletins and security releases.</p><p>We currently disclose vulnerabilities and security releases via numerous channels:</p><ul><li><a href=https://istio.io>istio.io</a> via our <a href=/v1.14/news/releases/>Release Announcements</a> and <a href=/v1.14/news/security/>Security Bulletins</a></li><li><a href=https://discuss.istio.io/c/announcements/5>Discuss</a></li><li>announcements channel on <a href=https://istio.slack.com>Slack</a></li><li><a href=https://twitter.com/IstioMesh>Twitter</a></li><li><a href=/v1.14/news/feed.xml>RSS</a></li></ul><p>When operating any software, it is preferable to plan for possible downtime when upgrading. Given the work that the Istio
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community is doing around Day 2 operations in 2021, the Environments working group has done a good job to streamline many
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upgrade issues users have seen. The Product Security Working Group intends to help Day 2 operations by having routine
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security release days so that upgrade operations can be planned in advance for our users.</p><h2 id=patch-tuesdays>Patch Tuesdays</h2><p>The Product Security working group is intending to ship a security release the 2nd Tuesday of each month. These security
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releases may contain fixes for multiple CVEs. It is the intent of the Product Security working group to have these
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security releases not contain any other fixes, although that may not always be possible.</p><p>When the Product Security working group intends to ship an upcoming security patch, an
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announcement will be made on <a href=https://discuss.istio.io/c/announcements/5>the Istio discussion
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board</a> 2 weeks prior to release. If you’re
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running Istio in production, we suggest you watch the Announcements category to be
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notified of such a release. If no such announcement is made there will not be a security
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release for that month, barring some exceptions listed below.</p><h3 id=first-patch-tuesday>First Patch Tuesday</h3><p>We are pleased to announce that <a href=/v1.14/news/releases/1.9.x/announcing-1.9.5/>Istio 1.9.5</a>, and the final release of Istio 1.8,
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<a href=/v1.14/news/releases/1.8.x/announcing-1.8.6/>1.8.6</a>, are the first security releases to fit this pattern. As Istio 1.10 will
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be shipping soon we are intending to continue this new tradition in June.</p><p>These releases fix 3 CVEs. Please see the release pages for information regarding the specific CVEs fixed.</p><h2 id=unscheduled-security-releases>Unscheduled security releases</h2><h3 id=0-day-vulnerabilities>0-day vulnerabilities</h3><p>Unfortunately, 0-day vulnerabilities cannot be planned. Upon disclosure, the Product Security Working Group will
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need to issue an out-of-band security release. The above methods will be used to disclose such issues, so please use
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at least one of them to be notified of such disclosures.</p><h3 id=third-party-embargoes>Third party embargoes</h3><p>Similar to 0-day vulnerabilities, security releases can be dictated by third party embargoes, namely Envoy.
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When this occurs, Istio will release a same-day patch once the embargo is lifted.</p><h2 id=security-best-practices>Security Best Practices</h2><p>The <a href=/v1.14/docs/ops/best-practices/security/>Istio Security Best Practices</a> has seen many improvements over the past few
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months. We recommend you check it regularly, as many of our recent security bulletins can be mitigated by utilizing
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methods discussed in the Security Best Practices page.</p><h2 id=early-disclosure-list>Early Disclosure List</h2><p>If you meet <a href=https://github.com/istio/community/blob/master/EARLY-DISCLOSURE.md#membership-criteria>the criteria</a> to be
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a part of the <a href=https://github.com/istio/community/blob/master/EARLY-DISCLOSURE.md>Istio Early Disclosure</a> list, please
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apply for membership. Patches for upcoming security releases will be made available to the early disclosure list ~2 weeks
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prior to Istio’s Patch Tuesday.</p><p>There will be times when an upcoming Istio security release will also need patches from Envoy. We cannot redistribute
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Envoy patches due to their embargo. <a href=https://github.com/envoyproxy/envoy/security/policy>Please refer to Envoy’s guidance</a>
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on how to join their early disclosure list.</p><h2 id=security-feedback>Security Feedback</h2><p>The Product Security Working Group holds bi-weekly meetings on Tuesdays from 9:00-9:30 Pacific. For more information see
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the <a href="https://calendar.google.com/calendar/embed?src=4uhe8fi8sf1e3tvmvh6vrq2dog%40group.calendar.google.com&ctz=America%2FLos_Angeles">Istio Working Group Calendar</a>.</p><p>Our next public meeting will be held on May 25, 2021. Please join us!</p></div><nav class=pagenav><div class=left><a title="Learn how to easily deploy StatefulSets with Istio 1.10." href=/v1.14/blog/2021/statefulsets-made-easier/ class=next-link><svg class="icon left-arrow"><use xlink:href="/v1.14/img/icons.svg#left-arrow"/></svg>StatefulSets Made Easier With Istio 1.10</a></div><div class=right><a title="Learn how to use discovery selectors and how they intersect with Sidecar resources." href=/v1.14/blog/2021/discovery-selectors/ class=next-link>Use discovery selectors to configure namespaces for your Istio service mesh<svg class="icon right-arrow"><use xlink:href="/v1.14/img/icons.svg#right-arrow"/></svg></a></div></nav></article><footer class=footer><div class="footer-wrapper container-l"><div class="user-links footer-links"><a class=channel title="GitHub is where development takes place on Istio code" href=https://github.com/istio/community aria-label=GitHub><svg class="icon github"><use xlink:href="/v1.14/img/icons.svg#github"/></svg></a><a class=channel title="Access our team drive if you'd like to take a look at the Istio technical design documents" href=https://groups.google.com/forum/#!forum/istio-team-drive-access aria-label="team drive"><svg class="icon drive"><use xlink:href="/v1.14/img/icons.svg#drive"/></svg></a><a class=channel title="Interactively discuss issues with the Istio community on Slack" href=https://slack.istio.io aria-label=slack><svg class="icon slack"><use xlink:href="/v1.14/img/icons.svg#slack"/></svg></a><a class=channel title="Stack Overflow is where you can ask questions and find curated answers on deploying, configuring, and using Istio" href=https://stackoverflow.com/questions/tagged/istio aria-label="Stack Overflow"><svg class="icon stackoverflow"><use xlink:href="/v1.14/img/icons.svg#stackoverflow"/></svg></a><a class=channel title="Follow us on Twitter to get the latest news" href=https://twitter.com/IstioMesh aria-label=Twitter><svg 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