CVE-2014-1666
First published: Sun Jan 26 2014(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | =4.1.5 | |
| Xen xen-unstable | =4.1.6.1 | |
| Xen xen-unstable | =4.2.2 | |
| Xen xen-unstable | =4.2.3 | |
| Xen xen-unstable | =4.3.0 | |
| Xen xen-unstable | =4.3.1 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127580.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127607.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
- http://osvdb.org/102536
- http://secunia.com/advisories/56650
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://support.citrix.com/article/CTX200288
- http://www.openwall.com/lists/oss-security/2014/01/24/6
- http://www.securityfocus.com/bid/65125
- http://www.securitytracker.com/id/1029684
- http://xenbits.xen.org/xsa/advisory-87.html
- http://xenbits.xen.org/xsa/xsa87-unstable-4.3.patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/90675
Frequently Asked Questions
What is the severity of CVE-2014-1666?
CVE-2014-1666 is classified as a medium to high severity vulnerability due to the potential for denial of service and unauthorized privilege escalation.
How do I fix CVE-2014-1666?
To fix CVE-2014-1666, you should update Xen to version 4.4.0 or later, which includes patches addressing this vulnerability.
Which versions of Xen are affected by CVE-2014-1666?
CVE-2014-1666 affects Xen versions 4.1.5, 4.1.6.1, 4.2.2, 4.2.3, and 4.3.x.
What are the potential impacts of CVE-2014-1666 if left unpatched?
If left unpatched, CVE-2014-1666 can lead to host or guest malfunctions and may allow local guests to gain elevated privileges.
Who is at risk from CVE-2014-1666?
Local PV guests running on affected Xen versions are at risk due to improper access controls in the do_physdev_op function.
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/severity
- agent/last-modified-date
- agent/author
- agent/weakness
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/xen
- canonical/xen xen-unstable
- version/xen xen-unstable/4.1.5
- version/xen xen-unstable/4.1.6.1
- version/xen xen-unstable/4.2.2
- version/xen xen-unstable/4.2.3
- version/xen xen-unstable/4.3.0
- version/xen xen-unstable/4.3.1