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CVE-2014-0155

5.5 · 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 deni…

Published Apr 14, 2014linuxCWE-20EPSS 0.98%

Overview

CVE-2014-0155 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 14, 2014 and has a CVSS 2.0 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel>= 0, < 3.14.1Affected

References

Refgit.kernel.org/cgit/virt/kvm/kvm.git/commit/?id=5678de3f15010b9022ee45673f33bcfc71d47b60Refwww.openwall.com/lists/oss-security/2014/04/07/2Refbugzilla.redhat.com/show_bug.cgi?id=1081589Refgit.kernel.org/cgit/virt/kvm/kvm.git/commit/?id=5678de3f15010b9022ee45673f33bcfc71d47b60Refwww.openwall.com/lists/oss-security/2014/04/07/2Refbugzilla.redhat.com/show_bug.cgi?id=1081589

How CyberStrike helps

Frequently asked questions

What is CVE-2014-0155?

CVE-2014-0155 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 14, 2014 and has a CVSS 2.0 base score of 5.5 (MEDIUM).

How severe is CVE-2014-0155?

This vulnerability has a CVSS 2.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2014-0155?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2014-0155?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-0155 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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