CVE-2014-5149

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

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.

References

http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136980.html

http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136981.html

http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html

http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html

http://www.securityfocus.com/bid/69199

http://www.securitytracker.com/id/1030723

http://xenbits.xen.org/xsa/advisory-97.html

https://exchange.xforce.ibmcloud.com/vulnerabilities/95235

https://security.gentoo.org/glsa/201504-04

Details

Source: MITRE

Published: 2014-08-22

Updated: 2018-10-30

Type: CWE-399

Risk Information

CVSS v2

Base Score: 4.7

Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.4

Severity: MEDIUM

Tenable Plugins

View all (7 total)

IDNameProductFamilySeverity
83717SUSE SLES10 Security Update : Xen (SUSE-SU-2015:0744-1)NessusSuSE Local Security Checks
high
82734GLSA-201504-04 : Xen: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
81305openSUSE Security Update : xen (openSUSE-2015-129)NessusSuSE Local Security Checks
high
81239openSUSE Security Update : xen (openSUSE-2015-113)NessusSuSE Local Security Checks
high
80928OracleVM 3.3 : xen (OVMSA-2015-0004)NessusOracleVM Local Security Checks
medium
77361Fedora 19 : xen-4.2.4-7.fc19 (2014-9493)NessusFedora Local Security Checks
medium
77360Fedora 20 : xen-4.3.2-7.fc20 (2014-9472)NessusFedora Local Security Checks
medium