VMware Security Advisory 2012-0001 - VMware ESXi and ESX updates to third party library and ESX Service Console address several security issues.
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Debian Linux Security Advisory 2337-1 - Several vulnerabilities were discovered in the Xen virtual machine hypervisor.
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Red Hat Security Advisory 2011-0833-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw in the dccp_rcv_state_process() function could allow a remote attacker to cause a denial of service, even when the socket was already closed. Multiple buffer overflow flaws were found in the Linux kernel's Management Module Support for Message Passing Technology based controllers. A local, unprivileged user could use these flaws to cause a denial of service, an information leak, or escalate their privileges. Various other issues were also addressed.
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