Vulnerability Details : CVE-2014-5149
Certain MMU virtualization operations in Xen 4.2.x through 4.4.x, when using shadow pagetables, are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these operations, which process every page assigned to a guest, a different vulnerability than CVE-2014-5146.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2014-5149
Probability of exploitation activity in the next 30 days: 0.06%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 25 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2014-5149
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
4.7
|
MEDIUM | AV:L/AC:M/Au:N/C:N/I:N/A:C |
3.4
|
6.9
|
NIST |
CWE ids for CVE-2014-5149
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-5149
-
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136980.html
[SECURITY] Fedora 20 Update: xen-4.3.2-7.fc20
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http://www.securitytracker.com/id/1030723
Xen x86 Memory Paging Flaw Lets Local Guest System Users Deny Service on the Host System - SecurityTrackerThird Party Advisory;VDB Entry
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http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
[security-announce] openSUSE-SU-2015:0226-1: important: Security updateThird Party Advisory
-
https://security.gentoo.org/glsa/201504-04
Xen: Multiple vulnerabilities (GLSA 201504-04) — Gentoo security
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http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
[security-announce] openSUSE-SU-2015:0256-1: important: Security updateThird Party Advisory
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http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136981.html
[SECURITY] Fedora 19 Update: xen-4.2.4-7.fc19
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http://www.securityfocus.com/bid/69199
Xen CVE-2014-5149 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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http://xenbits.xen.org/xsa/advisory-97.html
XSA-97 - Xen Security AdvisoriesPatch;Vendor Advisory
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https://exchange.xforce.ibmcloud.com/vulnerabilities/95235
Xen MMU virtualization denial of service CVE-2014-5149 Vulnerability Report
Products affected by CVE-2014-5149
- cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
- 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:4.4.0:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*