CVE-2015-8340: Xen

Medium severity, CVSS 4.7. EPSS: 0.4% chance of exploitation in the next 30 days.

The memory_exchange function in common/memory.c in Xen 3.2.x through 4.6.x does not properly release locks, which might allow guest OS administrators to cause a denial of service (deadlock or host crash) via unspecified vectors, related to XENMEM_exchange error handling.

Affected products

• Xen Xen: version 3.2.0 only; version 3.2.1 only; version 3.2.2 only; version 3.2.3 only; version 3.3.0 only; version 3.3.1 only; …

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