Vulnerability CVE-2014-9066
Published: 2014-12-09   Modified: 2014-12-10

Description:
Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065.

Type:

CWE-17

 (Code)

CVSS2 => (AV:L/AC:M/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.7/10
6.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
XEN -> XEN 
Opensuse -> Opensuse 
Novell -> Opensuse 
Linuxfoundation -> XEN 

 References:
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
http://www.openwall.com/lists/oss-security/2014/12/08/4
http://www.securityfocus.com/bid/71546
http://xenbits.xen.org/xsa/advisory-114.html
https://security.gentoo.org/glsa/201504-04
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