What is CVE-2014-0155?

CVE-2014-0155 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2014-0155 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2014-0155?

CVE-2014-0155 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is AV:A/AC:L/Au:S/C:N/I:N/A:C.

Is there a patch available for CVE-2014-0155?

No patch is currently available for CVE-2014-0155. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2014-0155 actively exploited?

CVE-2014-0155 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2014-0155

Medium

The ioapic_deliver function in virt/kvm/ioapic.c in the Linux kernel through 3.14.1 does not properly validate the kvm_irq_delivery_to_apic return value, which allows guest OS users to cause a denial of service (host OS crash) via a crafted entry in the redirection table of an I/O APIC. NOTE: the affected code was moved to the ioapic_service function before the vulnerability was announced.

Package Linux Kernel

Published 2014-04-14

Last modified 2026-05-06

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

5.5

out of 10

Medium

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

None

Availability

Vector string

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

Weakness type

CWE-20

CVE-2014-0155 is a Improper Input Validation vulnerability

What is Improper Input Validation?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2014-0155 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
http://git.kernel.org/cgit/virt/kvm/kvm.git/commit/?id=5678de3f15010b9022ee45673f33bcfc71d47b60
Patch
Kernel patch commit
http://www.openwall.com/lists/oss-security/2014/04/07/2
Patch
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=1081589
Patch

Details

CVE ID CVE-2014-0155

Severity Medium

CVSS score 5.5 / 10

CVSS version 2.0

Published 2014-04-14

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2014-0155?

CVE-2014-0155 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2014-0155 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2014-0155?

CVE-2014-0155 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:A/AC:L/Au:S/C:N/I:N/A:C.
Is there a patch available for CVE-2014-0155?

No patch is currently available for CVE-2014-0155. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2014-0155 actively exploited?

No — CVE-2014-0155 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Input Validation (CWE-20)?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. View CWE-20 on MITRE CWE →