What is CVE-2014-7842?

CVE-2014-7842 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10, classified as a Race Condition flaw (CWE-362). CVE-2014-7842 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2014-7842?

CVE-2014-7842 has a CVSS score of 4.9 out of 10, rated Medium severity. The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2014-7842?

No patch is currently available for CVE-2014-7842. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2014-7842 actively exploited?

CVE-2014-7842 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2014-7842

Medium

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.

Package Linux Kernel

Published 2014-11-30

Last modified 2026-05-06

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.9

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

None

Availability

Vector string

AV:L/AC:L/Au:N/C:N/I:N/A:C

Weakness type

CWE-362

CVE-2014-7842 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2014-7842 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
Red Hat
http://rhn.redhat.com/errata/RHSA-2016-0855.html
Secunia
http://secunia.com/advisories/62305
Secunia
http://secunia.com/advisories/62326
Secunia
http://secunia.com/advisories/62336
Openwall
http://www.openwall.com/lists/oss-security/2014/11/13/7
Oracle
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Oracle
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
Oracle
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
Securityfocus
http://www.securityfocus.com/bid/71078
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1163762

Vendor Advisory
Kernel.org
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4

Vendor Advisory
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a2b9e6c1a35afcc0973acb72e591c714e78885ff
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/a2b9e6c1a35afcc0973acb72e591c714e78885ff
Patch

Details

CVE ID CVE-2014-7842

Severity Medium

CVSS score 4.9 / 10

CVSS version 2.0

Published 2014-11-30

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2014-7842?

CVE-2014-7842 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10 , classified as a Race Condition flaw (CWE-362) . CVE-2014-7842 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2014-7842?

CVE-2014-7842 has a CVSS score of 4.9 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2014-7842?

No patch is currently available for CVE-2014-7842. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2014-7842 actively exploited?

No — CVE-2014-7842 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. View CWE-362 on MITRE CWE →