CVE-2015-8341: Xen

High severity, CVSS 7.8. EPSS: 2% chance of exploitation in the next 30 days.

The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service (memory and disk consumption) by starting domains.

Affected products

• Xen Xen: version 4.1.0 only; version 4.1.1 only; version 4.1.2 only; version 4.1.3 only; version 4.1.4 only; version 4.1.5 only; …

Published 2015-12-17. Last modified 2026-06-17.