QEMU (aka Quick Emulator) built to use 'address_space_translate' to map an address to a MemoryRegionSection is vulnerable to an OOB r/w access issue. It could occur while doing pci_dma_read/write calls. Affects QEMU versions >= 1.6.0 and <= 2.3.1. A privileged user inside guest could use this flaw to crash the guest instance resulting in DoS.
http://git.qemu.org/?p=qemu.git;a=commit;h=23820dbfc79d1c9dce090b4c555994f2bb6a69b3
http://git.qemu.org/?p=qemu.git;a=commit;h=c3c1bb99d1c11978d9ce94d1bdcf0705378c1459
http://rhn.redhat.com/errata/RHSA-2016-2670.html
http://rhn.redhat.com/errata/RHSA-2016-2671.html
http://rhn.redhat.com/errata/RHSA-2016-2704.html
http://rhn.redhat.com/errata/RHSA-2016-2705.html
http://rhn.redhat.com/errata/RHSA-2016-2706.html
http://www.openwall.com/lists/oss-security/2016/03/01/1
http://www.openwall.com/lists/oss-security/2016/03/01/10
https://bugzilla.redhat.com/show_bug.cgi?id=1300771
https://lists.gnu.org/archive/html/qemu-stable/2016-01/msg00060.html
Source: MITRE
Published: 2016-12-29
Updated: 2018-01-05
Type: CWE-125
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM