What is the severity of CVE-2017-15594?

CVE-2017-15594 has a high severity rating due to its potential to cause a hypervisor crash or privilege escalation.

How do I fix CVE-2017-15594?

To fix CVE-2017-15594, upgrade to a version of Xen that is 4.11.4+107-gef32c7afa2-1 or higher.

What versions of Xen are affected by CVE-2017-15594?

CVE-2017-15594 affects all Xen versions up to and including 4.9.x.

What impact does CVE-2017-15594 have on users?

CVE-2017-15594 allows x86 SVM PV guest OS users to potentially crash the hypervisor or gain elevated privileges.

Is there a workaround for CVE-2017-15594?

There are no known effective workarounds for CVE-2017-15594, and upgrading is the recommended approach.

Vulnerability/
CVE-2017-15594

high

8.8

18/10/2017

3/10/2019

CVE-2017-15594

First published: Wed Oct 18 2017(Updated: )

An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service (hypervisor crash) or gain privileges because IDT settings are mishandled during CPU hotplugging.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
debian/xen		4.11.4+107-gef32c7afa2-1 4.14.6-1 4.14.5+94-ge49571868d-1 4.17.1+2-gb773c48e36-1 4.17.2+55-g0b56bed864-1
Xen xen-unstable	<=4.9.0

Remedy

https://xenbits.xen.org/xsa/advisory-244.html

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2017-15594?
CVE-2017-15594 has a high severity rating due to its potential to cause a hypervisor crash or privilege escalation.
How do I fix CVE-2017-15594?
To fix CVE-2017-15594, upgrade to a version of Xen that is 4.11.4+107-gef32c7afa2-1 or higher.
What versions of Xen are affected by CVE-2017-15594?
CVE-2017-15594 affects all Xen versions up to and including 4.9.x.
What impact does CVE-2017-15594 have on users?
CVE-2017-15594 allows x86 SVM PV guest OS users to potentially crash the hypervisor or gain elevated privileges.
Is there a workaround for CVE-2017-15594?
There are no known effective workarounds for CVE-2017-15594, and upgrading is the recommended approach.

collector/security-tracker-debian
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agent/first-publish-date
agent/softwarecombine
agent/last-modified-date
agent/event
agent/remedy
agent/severity
agent/references
agent/author
agent/description
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
package-manager/debian
vendor/xen
canonical/xen xen-unstable
version/xen xen-unstable/4.9.0

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