Gentoo Linux Security Advisory 201504-4 - Multiple vulnerabilities have been found in Xen, the worst of which can allow remote attackers to cause a Denial of Service condition. Versions less than 4.4.2-r1 are affected.
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Red Hat Security Advisory 2015-0783-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the verbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate their privileges on the system. An insufficient bound checking flaw was found in the Xen hypervisor's implementation of acceleration support for the "REP MOVS" instructions. A privileged HVM guest user could potentially use this flaw to crash the host.
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Debian Linux Security Advisory 3140-1 - Multiple security issues have been discovered in the Xen virtualization solution which may result in denial of service, information disclosure or privilege escalation.
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