CVE-2014-1666

Description

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.

Category

8.3
CVSS
Severity: High
CVSS 2.0 •
EPSS 3.52% Top 15%
Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory secunia.com Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://osvdb.org/102536 vdb entry
http://www.securityfocus.com/bid/65125 vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/90675 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127607.html vendor advisory
http://support.citrix.com/article/CTX200288
http://security.gentoo.org/glsa/glsa-201407-03.xml vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127580.html vendor advisory
http://www.openwall.com/lists/oss-security/2014/01/24/6 mailing list
http://www.securitytracker.com/id/1029684 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html vendor advisory
http://xenbits.xen.org/xsa/advisory-87.html
http://secunia.com/advisories/56650 third party advisory vendor advisory
http://xenbits.xen.org/xsa/xsa87-unstable-4.3.patch patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2014-1666?
CVE-2014-1666 has been scored as a high severity vulnerability.
How to fix CVE-2014-1666?
To fix CVE-2014-1666, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-1666 being actively exploited in the wild?
It is possible that CVE-2014-1666 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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