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CVE-2016-9637

Status Candidate

Overview

The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.

Related Files

Gentoo Linux Security Advisory 201612-56
Posted Jan 2, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201612-56 - Multiple vulnerabilities have been found in Xen, the worst of which could lead to the execution of arbitrary code on the host system. Versions less than 4.7.1-r4 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2016-10024, CVE-2016-9377, CVE-2016-9378, CVE-2016-9379, CVE-2016-9380, CVE-2016-9381, CVE-2016-9382, CVE-2016-9383, CVE-2016-9384, CVE-2016-9385, CVE-2016-9386, CVE-2016-9637, CVE-2016-9815, CVE-2016-9816, CVE-2016-9817, CVE-2016-9818, CVE-2016-9932
SHA-256 | 70ed2e55c553c06ec58463cd484b2a108097349e02fa9a442b32774e3342fa47
Red Hat Security Advisory 2016-2963-01
Posted Dec 20, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2963-01 - Xen is a virtual machine monitor Security Fix: An out of bounds array access issue was found in the Xen virtual machine monitor, built with the QEMU ioport support. It could occur while doing ioport read/write operations, if guest was to supply a 32bit address parameter. A privileged guest user/process could use this flaw to potentially escalate their privileges on a host.

tags | advisory
systems | linux, redhat
advisories | CVE-2016-9637
SHA-256 | 7ac655efdee02ef89e17a23c7ecd9abe6845f56392eefc7adbc10532877a2365
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