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Qubes OS
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A reasonably secure operating system for personal computers.

Qubes-OS.org

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Improving the Stealthiness of Virtual Machine Introspection on Xen
https://blog.xenproject.org/2018/06/21/improving-the-stealthiness-of-virtual-machine-introspection-on-xen/

This blog post comes from Stewart Sentanoe of the University of Passau. Stewart is an Assistant Professor of Security in Information Systems at the Faculty of Computer Science and Mathematics. He was recently a Google Summer of Code Intern working on the Honeynet Project.  Project Introduction Virtual Machine Introspection Virtual Machine Introspection (VMI) is the process of examining and […]
XSA-264, XSA-265, and XSA-266 do not affect the security of Qubes OS
https://www.qubes-os.org/news/2018/06/27/xsa-264-265-266-qubes-not-affected/

The Xen Project has published Xen Security Advisories 264, 265 and 266
(XSA-264, XSA-265, and XSA-266, respectively). These XSAs do not
affect the security of Qubes OS, and no user action is necessary.

These XSAs have been added to the XSA Tracker (https://www.qubes-os.org/security/xsa/):

https://www.qubes-os.org/security/xsa/#264
https://www.qubes-os.org/security/xsa/#265
https://www.qubes-os.org/security/xsa/#266
Qubes OS pinned «XSA-264, XSA-265, and XSA-266 do not affect the security of Qubes OS https://www.qubes-os.org/news/2018/06/27/xsa-264-265-266-qubes-not-affected/ The Xen Project has published Xen Security Advisories 264, 265 and 266 (XSA-264, XSA-265, and XSA-266, respectively).…»
Comment on Stealthy monitoring with Xen altp2m by Improving the Stealthiness of Virtual Machine Introspection on Xen | Xen Project Blog
https://blog.xenproject.org/2016/04/13/stealthy-monitoring-with-xen-altp2m/#comment-518

[…] There are two ways to set a breakpoint implemented by DRAKVUF using INT3 (0xCC opcode) and Xen altp2m. […]
Xen Project 4.7.6 is available!
https://blog.xenproject.org/2018/07/09/xen-project-4-7-6-is-available/

I am pleased to announce the release of the Xen 4.7.6. Xen Project maintenance releases are released in line with our Maintenance Release Policy. We recommend that all users of the 4.7 stable series update to the latest point release. The release is available from its git repositories xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.7 (tag RELEASE-4.7.6) or from the Xen […]
Qubes OS pinned «Xen Project 4.7.6 is available! https://blog.xenproject.org/2018/07/09/xen-project-4-7-6-is-available/ I am pleased to announce the release of the Xen 4.7.6. Xen Project maintenance releases are released in line with our Maintenance Release Policy. We recommend…»
What’s New in the Xen Project Hypervisor 4.11
https://blog.xenproject.org/2018/07/10/whats-new-in-the-xen-project-hypervisor-4-11/

I am pleased to announce the release of the Xen Project Hypervisor 4.11. One of our long-term development goals since the introduction of Xen Project Hypervisor 4.8 has been to create a cleaner architecture for core technology, less code and a smaller computing base for security and performance. The Xen 4.11 release has followed this […]
Qubes OS pinned «What’s New in the Xen Project Hypervisor 4.11 https://blog.xenproject.org/2018/07/10/whats-new-in-the-xen-project-hypervisor-4-11/ I am pleased to announce the release of the Xen Project Hypervisor 4.11. One of our long-term development goals since the introduction…»
Comment on What’s New in the Xen Project Hypervisor 4.11 by ?Re-engineering Xen: The important open-source hypervisor gets remodeled - IT AND US
https://blog.xenproject.org/2018/07/10/whats-new-in-the-xen-project-hypervisor-4-11/#comment-521

[…] VM products from Citrix, Huawei, Inspur, and Oracle. But, with the release of its latest edition, Xen Project Hypervisor 4.11, there are major changes under the […]
Comment on What’s New in the Xen Project Hypervisor 4.11 by ?Re-engineering Xen: The important open-source hypervisor gets remodeled | BuzzNews10
https://blog.xenproject.org/2018/07/10/whats-new-in-the-xen-project-hypervisor-4-11/#comment-522

[…] from Citrix, Huawei, Inspur, and Oracle. However, with the discharge of its newest version, Xen Project Hypervisor 4.11, there are main adjustments underneath the […]
Comment on What’s New in the Xen Project Hypervisor 4.11 by ?Re-engineering Xen: The important open-source hypervisor gets remodeled | Longevity Technology
https://blog.xenproject.org/2018/07/10/whats-new-in-the-xen-project-hypervisor-4-11/#comment-523

[…] VM products from Citrix, Huawei, Inspur, and Oracle. But, with the release of its latest edition, Xen Project Hypervisor 4.11, there are major changes under the […]
Comment on Xen Project 4.7.6 is available! by Xen four.eleven debuts new ‘PVH’ guest kind, for the sake of security • The Register - Servers Maintenance
https://blog.xenproject.org/2018/07/09/xen-project-4-7-6-is-available/#comment-524

[…] wait around, there’s a lot more! The Xen Task on Monday released Xen four.seven.6, a maintenance launch that fixes 21 security concerns and one hundred eighty other […]
Comment on Xen Project 4.7.6 is available! by Xen 4.11 debuts new ‘PVH’ guest type, for the sake of security • The Register - RareTechNews
https://blog.xenproject.org/2018/07/09/xen-project-4-7-6-is-available/#comment-525

[…] wait, there’s more! The Xen Project on Monday released Xen 4.7.6, a maintenance release that fixes 21 security issues and 180 other issues. Downloads and […]
Qubes OS pinned «Comment on What’s New in the Xen Project Hypervisor 4.11 by ?Re-engineering Xen: The important open-source hypervisor gets remodeled - IT AND US https://blog.xenproject.org/2018/07/10/whats-new-in-the-xen-project-hypervisor-4-11/#comment-521 […] VM products…»
Xen Project 4.8.4 is available!
https://blog.xenproject.org/2018/07/12/xen-project-4-8-4-is-available/

I am pleased to announce the release of the Xen 4.8.4. Xen Project maintenance releases are released in line with our Maintenance Release Policy. We recommend that all users of the 4.8 stable series update to the latest point release. The release is available from its git repositories xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.8 (tag RELEASE-4.8.4) or from the Xen […]
Xen Project Hypervisor: Virtualization and Power Management are Coalescing into an Energy-Aware Hypervisor
https://blog.xenproject.org/2018/07/12/xen-project-hypervisor-virtualization-and-power-management-are-coalescing-into-an-energy-aware-hypervisor/

Power management in the Xen Project Hypervisor historically targets server applications to improve power consumption and heat management in data centers reducing electricity and cooling costs. In the embedded space, the Xen Project Hypervisor faces very different applications, architectures and power-related requirements, which focus on battery life, heat, and size. Although the same fundamental principles […]
Qubes OS pinned «Xen Project 4.8.4 is available! https://blog.xenproject.org/2018/07/12/xen-project-4-8-4-is-available/ I am pleased to announce the release of the Xen 4.8.4. Xen Project maintenance releases are released in line with our Maintenance Release Policy. We recommend…»
Xen Project Hypervisor Power Management: Suspend-to-RAM on Arm Architectures
https://blog.xenproject.org/2018/07/19/xen-project-hypervisor-power-management-suspend-to-ram-on-arm-architectures/

This is the second part of the Xen Project Hypervisor series on power management. The first article focused on how virtualization and power management are coalescing into an energy-aware hypervisor. In this post, the focus is on a project that was started to lay the foundation for full-scale power management for applications involving the Xen […]
Comment on What’s New in the Xen Project Hypervisor 4.11 by Xen Hypervisor 4.11 Released, New Browsh Text-Based Browser, Finney Cryptocurrency Phone, GNOME Hiring and More | Linux Admins – News and Blog
https://blog.xenproject.org/2018/07/10/whats-new-in-the-xen-project-hypervisor-4-11/#comment-528

[…] Xen Hypervisor 4.11 was released yesterday. In this release “PVH Dom0 support is now available as experimental feature and […]
XSA-274 does not affect the security of Qubes OS
https://www.qubes-os.org/news/2018/07/25/xsa-274-qubes-not-affected/

The Xen Project has published Xen Security Advisory 274 (XSA-274). This
XSA does not affect the security of Qubes OS, and no user action is
necessary.

This XSA has been added to the XSA Tracker (https://www.qubes-os.org/security/xsa/):

https://www.qubes-os.org/security/xsa/#274
A Recap of the Xen Project Developer and Design Summit: Community Health, Development Trends, Coding Changes and More
https://blog.xenproject.org/2018/07/27/a-recap-of-the-xen-project-developer-and-design-summit-community-health-development-trends-coding-changes-and-more/

We were extremely thrilled to host our Xen Project Developer and Design Summit in Nanjing Jiangning, China this June. The event brought together our community and power users under one roof to collaborate and to learn more about the future of our project. It also gave us the opportunity to connect with a large group […]