VULNERABILITY INTELLIGENCE
CVE-2013-1920
CVSS score4.4 MEDIUM
EPSS probability0.40%
CISA KEVNot currently listed
Published2013-04-12
Last modified2026-06-16
CVSS vectorAV:L/AC:M/Au:N/C:P/I:P/A:P
Description
Xen 4.2.x, 4.1.x, and earlier, when the hypervisor is running "under memory pressure" and the Xen Security Module (XSM) is enabled, uses the wrong ordering of operations when extending the per-domain event channel tracking table, which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors.