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 Ubuntu:13.04
xen
to version 4.2.2-0ubuntu0.13.04.2 or higher.
Note: Versions mentioned in the description apply only to the upstream xen
package and not the xen
package as distributed by Ubuntu
.
See How to fix?
for Ubuntu:13.04
relevant fixed versions and status.
Xen 4.0 through 4.3.x, when using AVX or LWP capable CPUs, does not properly clear previous data from registers when using an XSAVE or XRSTOR to extend the state components of a saved or restored vCPU after touching other restored extended registers, which allows local guest OSes to obtain sensitive information by reading the registers.