CVE-2014-0155

Severity: medium (CVSS 5.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-04-14 · updated 2026-06-17
Weakness: CWE-20

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.

Affected products

Linux kernel: before 3.14.1 — fixed in 3.14.1

How to fix

Upgrade to a fixed version: Linux kernel 3.14.1. Check the vendor advisory for mitigations.

References

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

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