CVE-2014-8866

Description

The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode.

Category

4.7
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://security.gentoo.org/glsa/201504-04 third party advisory vendor advisory
http://secunia.com/advisories/62672 third party advisory permissions required
http://support.citrix.com/article/CTX201794 third party advisory
http://support.citrix.com/article/CTX200288
http://xenbits.xen.org/xsa/advisory-111.html patch vendor advisory
http://www.debian.org/security/2015/dsa-3140 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html third party advisory vendor advisory
http://www.securityfocus.com/bid/71332 vdb entry third party advisory
http://secunia.com/advisories/59937 third party advisory permissions required

Frequently Asked Questions

What is the severity of CVE-2014-8866?
CVE-2014-8866 has been scored as a medium severity vulnerability.
How to fix CVE-2014-8866?
To fix CVE-2014-8866, 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-2014-8866 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-8866 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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