CVE-2014-5146
Certain MMU virtualization operations in Xen 4.2.x through 4.4.x before the xsa97-hap patch, when using Hardware Assisted Paging (HAP), are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these…
Does this matter?
Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.
Description
Certain MMU virtualization operations in Xen 4.2.x through 4.4.x before the xsa97-hap patch, when using Hardware Assisted Paging (HAP), 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-2014-5149.
- CVSS 2.0
- 4.7 MEDIUMAV:L/AC:M/Au:N/C:N/I:N/A:C
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- opensuse/opensuse · xen/xen
- Source
- cve@mitre.org
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.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
- http://www.securityfocus.com/bid/69198Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1030723Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-97.htmlPatch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95234
- https://security.gentoo.org/glsa/201504-04
- 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.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
- http://www.securityfocus.com/bid/69198Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1030723Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-97.htmlPatch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95234
- https://security.gentoo.org/glsa/201504-04
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.