CVE-2014-8867

Description

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.13%
Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory xenproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2015-0783.html third party advisory vendor advisory
https://security.gentoo.org/glsa/201504-04 vendor advisory
http://secunia.com/advisories/62672 third party advisory permissions required
http://support.citrix.com/article/CTX201794
http://support.citrix.com/article/CTX200288
http://www.debian.org/security/2015/dsa-3140 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html third party advisory vendor advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html third party advisory vendor advisory
http://xenbits.xenproject.org/xsa/advisory-112.html patch vendor advisory
http://secunia.com/advisories/59949 third party advisory permissions required
http://www.securityfocus.com/bid/71331 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2014-8867?
CVE-2014-8867 has been scored as a medium severity vulnerability.
How to fix CVE-2014-8867?
To fix CVE-2014-8867, 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-2014-8867 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-8867 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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