Vulnerability Details : CVE-2014-1666
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.
Vulnerability category: Denial of service
Products affected by CVE-2014-1666
- cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.6.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2014-1666
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2014-1666
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.3
|
HIGH | AV:A/AC:L/Au:N/C:C/I:C/A:C |
6.5
|
10.0
|
NIST |
CWE ids for CVE-2014-1666
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-1666
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https://exchange.xforce.ibmcloud.com/vulnerabilities/90675
Xen PHYSDEVOP privilege escalation CVE-2014-1666 Vulnerability Report
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http://www.securitytracker.com/id/1029684
Xen PHYSDEVOP_{prepare,release}_msix Access Control Flaw Lets Local Guest Users Deny Service on the Host - SecurityTracker
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http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127607.html
[SECURITY] Fedora 20 Update: xen-4.3.1-8.fc20
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http://security.gentoo.org/glsa/glsa-201407-03.xml
Xen: Multiple Vunlerabilities (GLSA 201407-03) — Gentoo security
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http://xenbits.xen.org/xsa/xsa87-unstable-4.3.patch
Patch;Vendor Advisory
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http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127580.html
[SECURITY] Fedora 19 Update: xen-4.2.3-14.fc19
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http://support.citrix.com/article/CTX200288
Citrix XenServer Multiple Security Updates
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http://www.openwall.com/lists/oss-security/2014/01/24/6
oss-security - Xen Security Advisory 87 (CVE-2014-1666) - PHYSDEVOP_{prepare,release}_msix exposed to unprivileged guests
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http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
[security-announce] SUSE-SU-2014:0373-1: important: Security update for
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http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html
[security-announce] SUSE-SU-2014:0372-1: important: Security update for
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http://www.securityfocus.com/bid/65125
Xen 'PHYSDEVOP_{prepare,release}_msix' Operations Local Privilege Escalation Vulnerability
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http://xenbits.xen.org/xsa/advisory-87.html
XSA-87 - Xen Security Advisories
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