CVE-2011-2519: Red Hat Enterprise Linux Desktop

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.

Affected products

• Red Hat Enterprise Linux Desktop: version 5.0 only
• Red Hat Enterprise Linux Server: version 5.0 only
• Red Hat Enterprise Linux Workstation: version 5.0 only
• Xen Xen: before 3.3.0 (fixed in 3.3.0)

Published 2013-12-27. Last modified 2026-06-16.