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.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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xen xen 4.2.0 |
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xen xen 4.2.1 |
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xen xen 4.3.1 |
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xen xen 4.3.0 |
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xen xen 4.2.2 |
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xen xen 4.2.3 |