CVE-2013-4370: Xen

Medium severity, CVSS 4.6. EPSS: 0.4% chance of exploitation in the next 30 days.

The ocaml binding for the xc_vcpu_getaffinity function in Xen 4.2.x and 4.3.x frees certain memory that may still be intended for use, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors that trigger a (1) use-after-free or (2) double free.

Affected products

• Xen Xen: version 4.2.0 only; version 4.2.1 only; version 4.2.2 only; version 4.2.3 only; version 4.3.0 only

Published 2013-10-17. Last modified 2026-06-16.