CVE-2014-5146
First published: Fri Aug 22 2014(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| openSUSE | =13.1 | |
| openSUSE | =13.2 | |
| Xen xen-unstable | =4.2.0 | |
| Xen xen-unstable | =4.2.1 | |
| Xen xen-unstable | =4.2.2 | |
| Xen xen-unstable | =4.2.3 | |
| Xen xen-unstable | =4.3.0 | |
| Xen xen-unstable | =4.3.1 | |
| Xen xen-unstable | =4.4.0 |
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Reference Links
- 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/69198
- http://www.securitytracker.com/id/1030723
- http://xenbits.xen.org/xsa/advisory-97.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95234
- https://security.gentoo.org/glsa/201504-04
Frequently Asked Questions
What is the severity of CVE-2014-5146?
CVE-2014-5146 is classified as a denial of service vulnerability affecting certain virtualization operations in Xen.
How do I fix CVE-2014-5146?
To mitigate CVE-2014-5146, upgrade to the latest version of Xen that includes the xsa97-hap patch.
Which versions of Xen are affected by CVE-2014-5146?
CVE-2014-5146 affects Xen versions 4.2.x through 4.4.x prior to the xsa97-hap patch.
How does CVE-2014-5146 impact system stability?
CVE-2014-5146 can lead to high virtual CPU consumption which may cause denial of service for local HVM guests.
Is CVE-2014-5146 specific to any operating systems?
Yes, CVE-2014-5146 affects systems running openSUSE versions 13.1 and 13.2, as well as multiple versions of Xen.
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- agent/software-canonical-lookup-request
- vendor/opensuse
- canonical/opensuse
- version/opensuse/13.1
- version/opensuse/13.2
- vendor/xen
- canonical/xen xen-unstable
- version/xen xen-unstable/4.2.0
- version/xen xen-unstable/4.2.1
- version/xen xen-unstable/4.2.2
- version/xen xen-unstable/4.2.3
- version/xen xen-unstable/4.3.0
- version/xen xen-unstable/4.3.1
- version/xen xen-unstable/4.4.0