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CVE-2017-10920

UnknownEPSS 2.55%

Last modified

CVE-2017-10920 is a vulnerability of currently unknown severity. The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.. EPSS estimates a 2.55% chance of exploitation in the next 30 days.

Description

The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.

Metrics

EPSS Probability
2.55%

83.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
XenXen<= 4.8.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-10920?
The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.
How severe is CVE-2017-10920?
Severity scoring for CVE-2017-10920 is pending analysis. The EPSS model estimates a 2.55% probability of exploitation in the next 30 days.
How do I fix CVE-2017-10920?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-10920?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST