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Vulnerability Details : CVE-2014-1666

The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict access to the (1) PHYSDEVOP_prepare_msix and (2) PHYSDEVOP_release_msix operations, which allows local PV guests to cause a denial of service (host or guest malfunction) or possibly gain privileges via unspecified vectors.
Publish Date : 2014-01-26 Last Update Date : 2014-04-19
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- CVSS Scores & Vulnerability Types

CVSS Score
8.3
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceGain privileges
CWE ID 264

- Related OVAL Definitions

Title Definition Id Class Family
SUSE-SU-2014:0373-1 -- Security update for Xen oval:org.mitre.oval:def:25390 unix
SUSE-SU-2014:0372-1 -- Security update for Xen oval:org.mitre.oval:def:25302 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2014-1666

# Product Type Vendor Product Version Update Edition Language
1 OS XEN XEN 4.1.5 Version Details Vulnerabilities
2 OS XEN XEN 4.1.6.1 Version Details Vulnerabilities
3 OS XEN XEN 4.2.2 Version Details Vulnerabilities
4 OS XEN XEN 4.2.3 Version Details Vulnerabilities
5 OS XEN XEN 4.3.0 Version Details Vulnerabilities
6 OS XEN XEN 4.3.1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
XEN XEN 6

- References For CVE-2014-1666

http://xforce.iss.net/xforce/xfdb/90675
XF xen-cve20141666-priv-esc(90675)
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127607.html
FEDORA FEDORA-2014-1552
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
SUSE SUSE-SU-2014:0373
http://secunia.com/advisories/56650
SECUNIA 56650
http://osvdb.org/102536
OSVDB 102536
http://www.openwall.com/lists/oss-security/2014/01/24/6
MLIST [oss-security] 20140123 Xen Security Advisory 87 (CVE-2014-1666) - PHYSDEVOP_{prepare,release}_msix exposed to unprivileged guests
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html
SUSE SUSE-SU-2014:0372
http://www.securityfocus.com/bid/65125
BID 65125 Xen 'PHYSDEVOP_{prepare,release}_msix' Operations Local Privilege Escalation Vulnerability Release Date:2014-12-19
http://www.securitytracker.com/id/1029684
SECTRACK 1029684
http://xenbits.xen.org/xsa/advisory-87.html CONFIRM
http://xenbits.xen.org/xsa/xsa87-unstable-4.3.patch

- Metasploit Modules Related To CVE-2014-1666

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


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