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CVE-2011-1898

7.4 · HIGH

Xen 4.1 before 4.1.1 and 4.0 before 4.0.2, when using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping, allows guest OS users to gain host OS privileges by "using DMA to…

Published Aug 12, 2011citrixCWE-264EPSS 0.85%

Overview

CVE-2011-1898 is a high-severity vulnerability affecting citrix xen. It was published on August 12, 2011 and has a CVSS 2.0 base score of 7.4 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.4, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Xen 4.1 before 4.1.1 and 4.0 before 4.0.2, when using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping, allows guest OS users to gain host OS privileges by "using DMA to generate MSI interrupts by writing to the interrupt injection registers."

Remediation

Check the references section for vendor advisories and patches from citrix. Update xen 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

References

Reflists.fedoraproject.org/pipermail/package-announce/2011-June/062112.htmlReflists.fedoraproject.org/pipermail/package-announce/2011-June/062139.htmlReflists.opensuse.org/opensuse-security-announce/2011-08/msg00017.htmlReflists.opensuse.org/opensuse-security-announce/2011-08/msg00018.htmlReftheinvisiblethings.blogspot.com/2011/05/following-white-rabbit-software-attacks.htmlRefwww.invisiblethingslab.com/resources/2011/Software%20Attacks%20on%20Intel%20VT-d.pdfRefxen.1045712.n5.nabble.com/Xen-security-advisory-CVE-2011-1898-VT-d-PCI-passthrough-MSI-td4390298.htmlRefxen.org/download/index_4.0.2.htmlReflists.fedoraproject.org/pipermail/package-announce/2011-June/062112.htmlReflists.fedoraproject.org/pipermail/package-announce/2011-June/062139.html

How CyberStrike helps

Frequently asked questions

What is CVE-2011-1898?

CVE-2011-1898 is a high-severity vulnerability affecting citrix xen. It was published on August 12, 2011 and has a CVSS 2.0 base score of 7.4 (HIGH).

How severe is CVE-2011-1898?

This vulnerability has a CVSS 2.0 base score of 7.4, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2011-1898?

Check the references section for vendor advisories and patches from citrix. Update xen 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-2011-1898?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-1898 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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