CVE-2014-8594

Name: CVE-2014-8594
Creator: NVD / NIST
Published: 2014-11-19T18:59:10.533+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.22%

Last modified Jun 17, 2026

CVE-2014-8594 is a vulnerability of currently unknown severity. The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).. EPSS estimates a 2.22% chance of exploitation in the next 30 days.

Description

The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).

Metrics

EPSS Probability

2.22%

80.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Opensuse	Opensuse	13.1
Opensuse	Opensuse	13.2
Debian	Debian Linux	7.0
Xen	Xen	4.0.0
Xen	Xen	4.0.1
Xen	Xen	4.0.2
Xen	Xen	4.0.3
Xen	Xen	4.0.4
Xen	Xen	4.1.0
Xen	Xen	4.1.1
Xen	Xen	4.1.2
Xen	Xen	4.1.3
Xen	Xen	4.1.4
Xen	Xen	4.1.5
Xen	Xen	4.1.6.1
Xen	Xen	4.2.0
Xen	Xen	4.2.1
Xen	Xen	4.2.2
Xen	Xen	4.2.3
Xen	Xen	4.3.0
Xen	Xen	4.3.1

References

http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
http://secunia.com/advisories/62672Permissions Required
http://www.debian.org/security/2015/dsa-3140Third Party Advisory
http://www.securityfocus.com/bid/71149
http://xenbits.xen.org/xsa/advisory-109.htmlPatch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/98767
https://security.gentoo.org/glsa/201504-04
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
http://secunia.com/advisories/62672Permissions Required
http://www.debian.org/security/2015/dsa-3140Third Party Advisory
http://www.securityfocus.com/bid/71149
http://xenbits.xen.org/xsa/advisory-109.htmlPatch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/98767
https://security.gentoo.org/glsa/201504-04

Timeline

Published: Nov 19, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-8594?

How severe is CVE-2014-8594?

Severity scoring for CVE-2014-8594 is pending analysis. The EPSS model estimates a 2.22% probability of exploitation in the next 30 days.

How do I fix CVE-2014-8594?

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-2014-8594?

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

Scan your code now

Source: NVD / NIST