CVE-2013-1432 Use after free in n/a

High 7.4 Published 28 Aug 2013 Updated 6 Aug 2024

Local PV guest kernels can trigger a use-after-free in Xen, causing hypervisor crashes or potential privilege escalation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2013-1432?

CVE-2013-1432 is a high-severity use after free vulnerability in Xen Xen, published on 28 Aug 2013. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Xen 4.1.x and 4.2.x, when the XSA-45 patch is in place, does not properly maintain references on pages stored for deferred cleanup, which allows local PV guest kernels to cause a denial of service (premature page free and hypervisor crash) or possibly gain privileges via unspecified vectors.

Weakness: CWE-399

Which versions are affected by CVE-2013-1432?

It affects 1 product.

Products include Xen Xen.

How do I fix CVE-2013-1432?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2013-1432 being exploited?

There is no known exploitation of CVE-2013-1432 in the wild and no public exploit code.

All Xen Xen vulnerabilities

Sources

Also known as DEBIAN-CVE-2013-1432, GHSA-qh8v-6pfv-7hfc.