FreeBSD : xen-kernel -- CPU lockup during exception delivery (2cabfbab-8bfb-11e5-bd18-002590263bf5)
Medium Nessus Plugin ID 86877
SynopsisThe remote FreeBSD host is missing a security-related update.
DescriptionThe Xen Project reports :
A malicious HVM guest administrator can cause a denial of service.
Specifically, prevent use of a physical CPU for a significant, perhaps indefinite period. If a host watchdog (Xen or dom0) is in use, this can lead to a watchdog timeout and consequently a reboot of the host.
If another, innocent, guest, is configured with a watchdog, this issue can lead to a reboot of such a guest.
SolutionUpdate the affected package.