What’s Vulnerable › Vulnerabilities

CVE-2011-1898

• Severity: high (CVSS 7.4 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2011-08-12 · updated 2026-06-16
• Weakness: CWE-264

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."

Affected products

• Citrix Xen: 4.0.0, 4.0.1, 4.1.0

References

• http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062112.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062139.html
• http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00017.html
• http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00018.html
• http://theinvisiblethings.blogspot.com/2011/05/following-white-rabbit-software-attacks.html
• http://www.invisiblethingslab.com/resources/2011/Software%20Attacks%20on%20Intel%20VT-d.pdf
• http://xen.1045712.n5.nabble.com/Xen-security-advisory-CVE-2011-1898-VT-d-PCI-passthrough-MSI-td4390298.html
• http://xen.org/download/index_4.0.2.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062112.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062139.html
• http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00017.html
• http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00018.html

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