CVE-2014-1666
Summary
| CVE | CVE-2014-1666 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2014-01-26 16:58:11 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| 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. |
Risk And Classification
Primary CVSS: v2.0 8.3 from [email protected]
AV:A/AC:L/Au:N/C:C/I:C/A:C
EPSS: 0.032540000 probability, percentile 0.871860000 (date 2026-05-04)
Problem Types: CWE-264 | n/a
CVSS v2.0 Breakdown
Access Vector
AdjacentAccess Complexity
LowAuthentication
NoneConfidentiality
CompleteIntegrity
CompleteAvailability
CompleteAV:A/AC:L/Au:N/C:C/I:C/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Xen | Xen | 4.1.5 | All | All | All |
| Operating System | Xen | Xen | 4.1.6.1 | All | All | All |
| Operating System | Xen | Xen | 4.2.2 | All | All | All |
| Operating System | Xen | Xen | 4.2.3 | All | All | All |
| Operating System | Xen | Xen | 4.3.0 | All | All | All |
| Operating System | Xen | Xen | 4.3.1 | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [SECURITY] Fedora 19 Update: xen-4.2.3-14.fc19 | af854a3a-2127-422b-91ae-364da2661108 | lists.fedoraproject.org | |
| Malformed Request | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| Xen PHYSDEVOP_{prepare,release}_msix Access Control Flaw Lets Local Guest Users Deny Service on the Host - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | |
| XSA-87 - Xen Security Advisories | af854a3a-2127-422b-91ae-364da2661108 | xenbits.xen.org | |
| oss-security - Xen Security Advisory 87 (CVE-2014-1666) - PHYSDEVOP_{prepare,release}_msix exposed to unprivileged guests | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| [security-announce] SUSE-SU-2014:0372-1: important: Security update for | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| [SECURITY] Fedora 20 Update: xen-4.3.1-8.fc20 | af854a3a-2127-422b-91ae-364da2661108 | lists.fedoraproject.org | |
| osvdb.org/102536 | af854a3a-2127-422b-91ae-364da2661108 | osvdb.org | |
| Citrix XenServer Multiple Security Updates | af854a3a-2127-422b-91ae-364da2661108 | support.citrix.com | |
| [security-announce] SUSE-SU-2014:0373-1: important: Security update for | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| Security Advisory SA56650 - Xen "PHYSDEVOP_{prepare,release}_msix" Operations Security Bypass Security Issue - Secunia | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| Gentoo Linux Documentation -- Xen: Multiple Vunlerabilities | af854a3a-2127-422b-91ae-364da2661108 | security.gentoo.org | |
| IBM X-Force Exchange | af854a3a-2127-422b-91ae-364da2661108 | exchange.xforce.ibmcloud.com | |
| xenbits.xen.org/xsa/xsa87-unstable-4.3.patch | af854a3a-2127-422b-91ae-364da2661108 | xenbits.xen.org | Patch, Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.