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CVE-2017-14316

Status Candidate

Overview

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.

Related Files

Debian Security Advisory 4050-1
Posted Nov 29, 2017
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4050-1 - Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service, information leaks, privilege escalation or the execution of arbitrary code.

tags | advisory, denial of service, arbitrary, vulnerability
systems | linux, debian
advisories | CVE-2017-14316, CVE-2017-14317, CVE-2017-14318, CVE-2017-14319, CVE-2017-15588, CVE-2017-15589, CVE-2017-15590, CVE-2017-15592, CVE-2017-15593, CVE-2017-15594, CVE-2017-15595, CVE-2017-15597
SHA-256 | a529e71e47e45bfddd90466706afd9373a145cba82a1e0b55cb9002972cff57a
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