CVE-2012-4537 Denial of service in n/a

What is CVE-2012-4537?

CVE-2012-4537 is a low-severity denial of service vulnerability in Xen Xen, published on 21 Nov 2012. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability."

Weakness: CWE-16

Which versions are affected by CVE-2012-4537?

It affects 1 product.

Products include Xen Xen.

How do I fix CVE-2012-4537?

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-2012-4537 being exploited?

There is no known exploitation of CVE-2012-4537 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-2012-4537, GHSA-m3g8-h8w3-8hqm.