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Vulnerability Details : CVE-2014-8594

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).
Publish Date : 2014-11-19 Last Update Date : 2018-10-30
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- CVSS Scores & Vulnerability Types

CVSS Score
5.4
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 20

- Products Affected By CVE-2014-8594

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 7.0 Version Details Vulnerabilities
2 OS Opensuse Opensuse 13.1 Version Details Vulnerabilities
3 OS Opensuse Opensuse 13.2 Version Details Vulnerabilities
4 OS XEN XEN 4.0.0 Version Details Vulnerabilities
5 OS XEN XEN 4.0.1 Version Details Vulnerabilities
6 OS XEN XEN 4.0.2 Version Details Vulnerabilities
7 OS XEN XEN 4.0.3 Version Details Vulnerabilities
8 OS XEN XEN 4.0.4 Version Details Vulnerabilities
9 OS XEN XEN 4.1.0 Version Details Vulnerabilities
10 OS XEN XEN 4.1.1 Version Details Vulnerabilities
11 OS XEN XEN 4.1.2 Version Details Vulnerabilities
12 OS XEN XEN 4.1.3 Version Details Vulnerabilities
13 OS XEN XEN 4.1.4 Version Details Vulnerabilities
14 OS XEN XEN 4.1.5 Version Details Vulnerabilities
15 OS XEN XEN 4.1.6.1 Version Details Vulnerabilities
16 OS XEN XEN 4.2.0 Version Details Vulnerabilities
17 OS XEN XEN 4.2.1 Version Details Vulnerabilities
18 OS XEN XEN 4.2.2 Version Details Vulnerabilities
19 OS XEN XEN 4.2.3 Version Details Vulnerabilities
20 OS XEN XEN 4.3.0 Version Details Vulnerabilities
21 OS XEN XEN 4.3.1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Opensuse Opensuse 2
XEN XEN 18

- References For CVE-2014-8594

https://security.gentoo.org/glsa/201504-04
GENTOO GLSA-201504-04
https://exchange.xforce.ibmcloud.com/vulnerabilities/98767
XF xen-cve20148594-sec-byass(98767)
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
SUSE openSUSE-SU-2015:0256
http://www.debian.org/security/2015/dsa-3140
DEBIAN DSA-3140
http://xenbits.xen.org/xsa/advisory-109.html CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
SUSE openSUSE-SU-2015:0226
http://www.securityfocus.com/bid/71149
BID 71149 Xen MMU CVE-2014-8594 Local Security Bypass Vulnerability Release Date:2015-02-16

- Metasploit Modules Related To CVE-2014-8594

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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