CVE-2014-1895
First published: Tue Apr 01 2014(Updated: )
Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read.
Credit: cve@mitre.org
| 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
Frequently Asked Questions
What is the severity of CVE-2014-1895?
CVE-2014-1895 has a severity level that can lead to denial of service or exposure of sensitive information.
How do I fix CVE-2014-1895?
To fix CVE-2014-1895, it is recommended to upgrade to a fixed version of Xen beyond the 4.3.x series.
Who is affected by CVE-2014-1895?
CVE-2014-1895 affects local users of Xen 4.2.x and 4.3.x when the maximum number of physical CPUs is in use.
What types of vulnerabilities are related to CVE-2014-1895?
CVE-2014-1895 is related to an off-by-one error that can lead to a denial of service condition.
Can CVE-2014-1895 lead to data leaks?
Yes, CVE-2014-1895 can potentially expose sensitive information from hypervisor memory.
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- version/xen xen-unstable/4.2.1
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