CVE-2013-4551: Input Validation
First published: Fri Nov 15 2013(Updated: )
Xen 4.2.x and 4.3.x, when nested virtualization is disabled, does not properly check the emulation paths for (1) VMLAUNCH and (2) VMRESUME, which allows local HVM guest users to cause a denial of service (host crash) via unspecified vectors related to "guest VMX instruction execution."
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 |
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Reference Links
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00059.html
- http://secunia.com/advisories/55398
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://www.openwall.com/lists/oss-security/2013/11/11/1
- http://www.securityfocus.com/bid/63625
- http://www.securitytracker.com/id/1029313
- https://exchange.xforce.ibmcloud.com/vulnerabilities/88649
Frequently Asked Questions
What is the severity of CVE-2013-4551?
CVE-2013-4551 is classified as a medium severity vulnerability as it can lead to denial of service through host crash.
How do I fix CVE-2013-4551?
To fix CVE-2013-4551, you should upgrade to a patched version of Xen that addresses the vulnerability.
What versions of Xen are affected by CVE-2013-4551?
CVE-2013-4551 affects Xen versions 4.2.0 through 4.2.3 and 4.3.0 through 4.3.1.
What is the impact of CVE-2013-4551 on my system?
The impact of CVE-2013-4551 is a potential denial of service that could cause the host system to crash.
Is nested virtualization the cause of CVE-2013-4551?
CVE-2013-4551 occurs when nested virtualization is disabled, allowing local HVM guest users to exploit the vulnerability.
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- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
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- collector/nvd-index
- agent/software-canonical-lookup-request
- 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