AI Score
Confidence
High
EPSS
Percentile
25.1%
Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.
rhn.redhat.com/errata/RHSA-2011-1212.html
www.openwall.com/lists/oss-security/2011/08/30/1
xenbits.xen.org/hg/xen-3.1-testing.hg/rev/15644
bugzilla.redhat.com/show_bug.cgi?id=718882