The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade Debian:9
xen
to version 4.8.1-1+deb9u1 or higher.
Note: Versions mentioned in the description apply only to the upstream xen
package and not the xen
package as distributed by Debian
.
See How to fix?
for Debian:9
relevant fixed versions and status.
Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.