FreeBSD : xen-kernel -- x86 HVM: Overflow of sh_ctxt->seg_reg (4aae54be-ba4d-11e6-ae1b-002590263bf5)
Low Nessus Plugin ID 95502
The remote FreeBSD host is missing a security-related update.
The Xen Project reports : x86 HVM guests running with shadow paging use a subset of the x86 emulator to handle the guest writing to its own pagetables. There are situations a guest can provoke which result in exceeding the space allocated for internal state. A malicious HVM guest administrator can cause Xen to fail a bug check, causing a denial of service to the host.