CVE-2014-0155

Public Exploit

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.

Category

5.5
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.kernel.org/cgit/virt/kvm/kvm.git/commit/?id=5678de3f15010b9022ee45673f33bcfc71d47b60 exploit patch vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1081589 issue tracking third party advisory patch
http://www.openwall.com/lists/oss-security/2014/04/07/2 mailing list third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2014-0155?
CVE-2014-0155 has been scored as a medium severity vulnerability.
How to fix CVE-2014-0155?
To fix CVE-2014-0155, 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-2014-0155 being actively exploited in the wild?
It is possible that CVE-2014-0155 is being exploited or will be exploited in a near future based on public information. 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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