CVE-2015-8817

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-12-29 · updated 2026-06-17
Weakness: CWE-125

Description

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.

Affected products

QEMU: 1.6.0, 1.6.0-rc1, 1.6.0-rc2, 1.6.0-rc3, 1.6.1, 1.6.2 (+20)

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=23820dbfc79d1c9dce090b4c555994f2bb6a69b3
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=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
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=23820dbfc79d1c9dce090b4c555994f2bb6a69b3

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