CVE-2012-4539
First published: Wed Nov 21 2012(Updated: )
Xen 4.0 through 4.2, when running 32-bit x86 PV guests on 64-bit hypervisors, allows local guest OS administrators to cause a denial of service (infinite loop and hang or crash) via invalid arguments to GNTTABOP_get_status_frames, aka "Grant table hypercall infinite loop DoS vulnerability."
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | =4.0.0 | |
| Xen xen-unstable | =4.0.1 | |
| Xen xen-unstable | =4.0.2 | |
| Xen xen-unstable | =4.0.3 | |
| Xen xen-unstable | =4.0.4 | |
| Xen xen-unstable | =4.1.0 | |
| Xen xen-unstable | =4.1.1 | |
| Xen xen-unstable | =4.1.2 | |
| Xen xen-unstable | =4.1.3 | |
| Xen xen-unstable | =4.2.0 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
- http://lists.xen.org/archives/html/xen-announce/2012-11/msg00002.html
- http://secunia.com/advisories/51200
- http://secunia.com/advisories/51324
- http://secunia.com/advisories/51352
- http://secunia.com/advisories/51413
- http://secunia.com/advisories/51468
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://www.debian.org/security/2012/dsa-2582
- http://www.openwall.com/lists/oss-security/2012/11/13/4
- http://www.osvdb.org/87305
- http://www.securityfocus.com/bid/56498
- http://www.securitytracker.com/id?1027763
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80026
- https://security.gentoo.org/glsa/201604-03
Frequently Asked Questions
What is the severity of CVE-2012-4539?
CVE-2012-4539 is considered a high severity vulnerability due to its potential to cause a denial of service.
How does CVE-2012-4539 affect systems?
CVE-2012-4539 allows local guest OS administrators to induce an infinite loop and hang or crash the hypervisor.
What versions of Xen are affected by CVE-2012-4539?
CVE-2012-4539 affects Xen versions 4.0 through 4.2 when running 32-bit x86 PV guests on 64-bit hypervisors.
How can I mitigate CVE-2012-4539?
To mitigate CVE-2012-4539, ensure that the affected versions of Xen are updated to a patched version that addresses this vulnerability.
Is CVE-2012-4539 exploitable remotely?
CVE-2012-4539 is not exploitable remotely as it requires local administrative access to the guest operating system.
- agent/softwarecombine
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/last-modified-date
- agent/weakness
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/xen
- canonical/xen xen-unstable
- version/xen xen-unstable/4.0.0
- version/xen xen-unstable/4.0.1
- version/xen xen-unstable/4.0.2
- version/xen xen-unstable/4.0.3
- version/xen xen-unstable/4.0.4
- version/xen xen-unstable/4.1.0
- version/xen xen-unstable/4.1.1
- version/xen xen-unstable/4.1.2
- version/xen xen-unstable/4.1.3
- version/xen xen-unstable/4.2.0