CVE-2014-9066
First published: Tue Dec 09 2014(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | <=4.4.1 | |
| openSUSE | =13.1 | |
| openSUSE | =13.2 |
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Reference Links
- 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
Frequently Asked Questions
What is the severity of CVE-2014-9066?
CVE-2014-9066 is classified as a moderate severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2014-9066?
To fix CVE-2014-9066, upgrade to a version of Xen later than 4.4.1 that addresses the vulnerability.
Who is affected by CVE-2014-9066?
CVE-2014-9066 affects users of Xen versions up to and including 4.4.1 and specific versions of openSUSE.
What type of attack does CVE-2014-9066 allow?
CVE-2014-9066 allows local x86 guest users to execute an attack that could lead to a denial of service.
Is CVE-2014-9066 a hardware or software vulnerability?
CVE-2014-9066 is a software vulnerability related to the handling of read and write locks in Xen hypervisor.
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