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CVE-2017-14316

Disclosure Date: September 12, 2017
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Description

A parameter verification issue was discovered in Xen through 4.9.x. The function alloc_heap_pages allows callers to specify the first NUMA node that should be used for allocations through the memflags parameter; the node is extracted using the MEMF_get_node macro. While the function checks to see if the special constant NUMA_NO_NODE is specified, it otherwise does not handle the case where node >= MAX_NUMNODES. This allows an out-of-bounds access to an internal array.

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CVSS V3 Severity and Metrics
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General Information

Vendors

  • xen

Products

  • xen
Technical Analysis