CVE-2014-5146

Description

Certain MMU virtualization operations in Xen 4.2.x through 4.4.x before the xsa97-hap patch, when using Hardware Assisted Paging (HAP), are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these operations, which process every page assigned to a guest, a different vulnerability than CVE-2014-5149.

Category

4.7
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory gentoo.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.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 vendor advisory
http://xenbits.xen.org/xsa/advisory-97.html patch vendor advisory
http://www.securityfocus.com/bid/69198 third party advisory vdb entry
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136980.html vendor advisory
http://www.securitytracker.com/id/1030723 third party advisory vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/95234 vdb entry
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136981.html 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

Frequently Asked Questions

What is the severity of CVE-2014-5146?
CVE-2014-5146 has been scored as a medium severity vulnerability.
How to fix CVE-2014-5146?
To fix CVE-2014-5146, 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-2014-5146 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-5146 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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