CVE-2014-8866 Denial of service in n/a

What is CVE-2014-8866?

CVE-2014-8866 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 1 Dec 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode.

Weakness: CWE-17

Which versions are affected by CVE-2014-8866?

It affects 3 products.

Products include Debian Debian Linux, Opensuse Opensuse, Xen Xen.

How do I fix CVE-2014-8866?

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-2014-8866 being exploited?

There is no known exploitation of CVE-2014-8866 in the wild and no public exploit code.

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• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2014-8866, GHSA-gqm4-jx6m-62vq, UBUNTU-CVE-2014-8866.