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What You Need to Know about Recent Xen Project Security Advisories

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What You Need to Know about Recent Xen Project Security Advisories
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Today the Xen Project announced eight security advisories: XSA-191 to XSA-198. The bulk of these security advisories were discovered and fixed during the hardening phase of the Xen Project Hypervisor 4.8 release (expected to come out in early December). The Xen Project has implemented a security-first approach when publishing new releases.

In order to increase the security of future releases, members of the Xen Project Security Team and key contributors to the Xen Project, actively search and fix security bugs in code areas where vulnerability were found in past releases. The contributors use techniques such as code inspections, static code analysis, and additional testing using fuzzers such as American Fuzzy Lop. These fixes are then backported to older Xen Project releases with security support and published in bulk to make it easier for downstreams consumers to apply security fixes.

Before we declare a new Xen Project feature as supported, we perform a security assessment (see declare the Credit2 scheduler as supported). In addition, the contributors focused on security have started crafting tests for each vulnerability and integrated them into our automated regression testing system run regularly on all maintained versions of Xen. This ensures that the patch will be applied to every version which is vulnerable, and also ensures that no bug is accidentally reintroduced as development continues to go forward.

Read the entire article here, What You Need to Know about Recent Xen Project Security Advisories

via the fine folks at Xen.org.

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The Xen Project The Xen Project™ develops virtualization technologies powering the world's largest clouds in production and is the foundation of many commercial products.

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