CVE-2016-2271 Denial of service in n/a

What is CVE-2016-2271?

CVE-2016-2271 is a medium-severity denial of service vulnerability in Xen Xen, published on 19 Feb 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

VMX in Xen 4.6.x and earlier, when using an Intel or Cyrix CPU, allows local HVM guest users to cause a denial of service (guest crash) via vectors related to a non-canonical RIP.

Which versions are affected by CVE-2016-2271?

It affects 1 product.

Products include Xen Xen.

How do I fix CVE-2016-2271?

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-2016-2271 being exploited?

There is no known exploitation of CVE-2016-2271 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 DEBIAN-CVE-2016-2271, GHSA-wqc2-67r3-gjj5, UBUNTU-CVE-2016-2271.