CVE-2012-6031: Input Validation
First published: Fri Nov 23 2012(Updated: )
The do_tmem_get function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (CPU hang and host crash) via unspecified vectors related to a spinlock being held in the "bad_copy error path." NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | =4.0.0 | |
| Xen xen-unstable | =4.1.0 | |
| Xen xen-unstable | =4.2.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html
- http://osvdb.org/85199
- http://secunia.com/advisories/50472
- http://secunia.com/advisories/55082
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities
- http://www.openwall.com/lists/oss-security/2012/09/05/8
- http://www.securityfocus.com/bid/55410
- http://www.securitytracker.com/id?1027482
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78268
- https://security.gentoo.org/glsa/201604-03
Frequently Asked Questions
What is the severity of CVE-2012-6031?
CVE-2012-6031 has a high severity due to its potential to cause a denial of service resulting in CPU hang and host crash.
How do I fix CVE-2012-6031?
To mitigate CVE-2012-6031, upgrade your Xen installation to a version that is not affected, preferably above 4.2.0.
Which versions of Xen are affected by CVE-2012-6031?
CVE-2012-6031 affects Xen versions 4.0.0, 4.1.0, and 4.2.0.
What type of attack does CVE-2012-6031 enable?
CVE-2012-6031 allows a local guest OS user to execute an attack that leads to a denial of service.
Is CVE-2012-6031 a critical vulnerability?
Yes, CVE-2012-6031 is considered a critical vulnerability due to its ability to affect system stability and availability.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/references
- agent/weakness
- agent/author
- agent/event
- agent/description
- 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/4.1.0
- version/xen xen-unstable/4.2.0