Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.14.1 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/virt/kvm/kvm.git/commit/?id=5678de3f15010b9022ee45673ExploitPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2014/04/07/2Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1081589Issue TrackingPatchThird Party Advisory
- http://git.kernel.org/cgit/virt/kvm/kvm.git/commit/?id=5678de3f15010b9022ee45673ExploitPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2014/04/07/2Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1081589Issue TrackingPatchThird Party Advisory
FAQ
What is CVE-2014-0155?
CVE-2014-0155 is a vulnerability with a CVSS score of 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 denial ...
How severe is CVE-2014-0155?
CVE-2014-0155 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-0155?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.