CVE-2015-8817

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2016-2671.html vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1300771 issue tracking
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=23820dbfc79d1c9dce090b4c555994f2bb6a69b3
http://rhn.redhat.com/errata/RHSA-2016-2706.html vendor advisory
http://www.openwall.com/lists/oss-security/2016/03/01/1 mailing list patch
http://www.openwall.com/lists/oss-security/2016/03/01/10 mailing list patch
http://rhn.redhat.com/errata/RHSA-2016-2705.html vendor advisory
https://lists.gnu.org/archive/html/qemu-stable/2016-01/msg00060.html mailing list
http://rhn.redhat.com/errata/RHSA-2016-2670.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-2704.html vendor advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=c3c1bb99d1c11978d9ce94d1bdcf0705378c1459

Frequently Asked Questions

What is the severity of CVE-2015-8817?
CVE-2015-8817 has been scored as a medium severity vulnerability.
How to fix CVE-2015-8817?
To fix CVE-2015-8817, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-8817 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-8817 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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