CVE-2015-8552

Description

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks."

Category

4.4
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.27%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://xenbits.xen.org/xsa/advisory-157.html vendor advisory
http://www.securitytracker.com/id/1034480 vdb entry third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html third party advisory vendor advisory
https://security.gentoo.org/glsa/201604-03 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html vendor advisory
http://www.debian.org/security/2016/dsa-3434 vendor advisory
http://www.securityfocus.com/bid/79546 vdb entry third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-8552?
CVE-2015-8552 has been scored as a medium severity vulnerability.
How to fix CVE-2015-8552?
To fix CVE-2015-8552, 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-2015-8552 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-8552 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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