CVE-2011-1936 Denial of service in n/a

What is CVE-2011-1936?

CVE-2011-1936 is a medium-severity denial of service vulnerability in Xen Xen, published on 7 Jan 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors.

Which versions are affected by CVE-2011-1936?

It affects 1 product.

Products include Xen Xen.

How do I fix CVE-2011-1936?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2011-1936 being exploited?

There is no known exploitation of CVE-2011-1936 in the wild and no public exploit code.

Other vulnerabilities in Xen Xen

• CVE-2017-10912 Privilege escalation in n/a Critical 10.0
• CVE-2017-10918 Memory corruption in n/a Critical 10.0
• CVE-2017-10920 Memory corruption in n/a Critical 10.0
• CVE-2017-10921 Memory corruption in n/a Critical 10.0
• CVE-2025-27466 Mutiple vulnerabilities in the Viridian interface Critical 9.8

All Xen Xen vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-36h3-x748-qfw8.