{"action":"Upgrade xen to 4.4.1-4 or later.","affected":[{"fixed":"4.4.1-4","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["4.4.1-4"],"id":"tcs_01M5NAZBCKX7YFSJ1EDRJZPZP4","modified_at":"2026-10-23T15:47:29.033280163Z","published_at":"2014-11-19T18:59:10.533Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2014-8594","https://security-tracker.debian.org/tracker/CVE-2014-8594"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2014-8594","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2014-8594"}],"summary":"The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer"}