CVE-2014-5149
First published: Fri Aug 22 2014(Updated: )
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.
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/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
Frequently Asked Questions
What is the severity of CVE-2014-5149?
CVE-2014-5149 has a severity rating that indicates it can lead to denial of service due to excessive vcpu consumption.
How do I fix CVE-2014-5149?
To fix CVE-2014-5149, upgrade to a patched version of Xen that addresses this vulnerability.
Which versions of Xen are affected by CVE-2014-5149?
CVE-2014-5149 affects Xen versions 4.2.x through 4.4.x when utilizing shadow pagetables.
What type of attack is possible with CVE-2014-5149?
CVE-2014-5149 allows local HVM guests to execute operations that can cause denial of service by monopolizing CPU resources.
Is CVE-2014-5149 specific to certain operating systems?
Yes, CVE-2014-5149 impacts specific distributions of OpenSUSE such as 13.1 and 13.2, along with certain versions of Xen.
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- agent/event
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- collector/nvd-index
- 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