CVE-2015-7812

Description

The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.14%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html vendor advisory
http://www.securitytracker.com/id/1034031 vdb entry
http://xenbits.xen.org/xsa/advisory-145.html patch vendor advisory
http://www.debian.org/security/2015/dsa-3414 vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html vendor advisory
https://security.gentoo.org/glsa/201604-03 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-7812?
CVE-2015-7812 has been scored as a medium severity vulnerability.
How to fix CVE-2015-7812?
To fix CVE-2015-7812, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-7812 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-7812 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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