CVE-2014-7842

Description

Race condition in arch/x86/kvm/x86.c in the Linux kernel before 3.17.4 allows guest OS users to cause a denial of service (guest OS crash) via a crafted application that performs an MMIO transaction or a PIO transaction to trigger a guest userspace emulation error report, a similar issue to CVE-2010-5313.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory github.com Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2016-0855.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.securityfocus.com/bid/71078 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html vendor advisory
http://www.openwall.com/lists/oss-security/2014/11/13/7 mailing list
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a2b9e6c1a35afcc0973acb72e591c714e78885ff
http://secunia.com/advisories/62326 third party advisory
https://github.com/torvalds/linux/commit/a2b9e6c1a35afcc0973acb72e591c714e78885ff vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html vendor advisory
http://secunia.com/advisories/62336 third party advisory
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1163762 vendor advisory
http://secunia.com/advisories/62305 third party advisory

Frequently Asked Questions

What is the severity of CVE-2014-7842?
CVE-2014-7842 has been scored as a medium severity vulnerability.
How to fix CVE-2014-7842?
To fix CVE-2014-7842, 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-2014-7842 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-7842 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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