{"action":"Upgrade xen to 4.1.3-4 or later.","affected":[{"fixed":"4.1.3-4","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.1.3-4"],"id":"tcs_01M5NA4YKERYNJNM9Z6FNP2PYH","modified_at":"2026-10-23T17:47:45.778711176Z","published_at":"2012-11-24T20:55:03.603Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2012-4538","https://security-tracker.debian.org/tracker/CVE-2012-4538"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2012-4538#Debian:14/xen","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2012-4538"}],"summary":"The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of servi"}