{"id":"CVE-2023-46840","aliases":["ALPINE-CVE-2023-46840","DEBIAN-CVE-2023-46840","EUVD-2023-51006","GHSA-858p-q38q-g87r","MGASA-2024-0047","SUSE-SU-2024:0266-1","SUSE-SU-2024:0830-1","UBUNTU-CVE-2023-46840","openSUSE-SU-2024:13648-1"],"status":"published","title":"VT-d: Failure to quarantine devices in !HVM builds","description":"Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of 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Advisory","fix"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XLL6SQ6IKFYXLYWITYZCRV5IBRK5G35R/","tags":["Mailing List","Third Party Advisory","advisory"]},{"url":"http://xenbits.xen.org/xsa/advisory-450.html","tags":["Patch","Vendor Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46840"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XLL6SQ6IKFYXLYWITYZCRV5IBRK5G35R"},{"url":"https://github.com/advisories/GHSA-858p-q38q-g87r"},{"url":"https://security.alpinelinux.org/vuln/CVE-2023-46840","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-46840","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2024-0047.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=32332","tags":["report"]},{"url":"https://xenbits.xen.org/xsa/advisory-431.html","tags":["advisory"]},{"url":"https://xenbits.xen.org/xsa/advisory-449.html","tags":["advisory"]},{"url":"https://xenbits.xen.org/xsa/advisory-450.html","tags":["advisory","report"]},{"url":"https://www.suse.com/support/update/announcement/2024/suse-su-20240266-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1218851","tags":["report"]},{"url":"https://bugzilla.suse.com/1219080","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2023-46839","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-46840","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2024/suse-su-20240830-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1027519","tags":["report"]},{"url":"https://bugzilla.suse.com/1219885","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2023-46841","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2023-46840","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-46840","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-46840","title":"VT-d: Failure to quarantine devices in !HVM builds","description":"Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of Xen.\n","status":"published","published":"2024-03-20T10:40:18.05Z","modified":"2025-11-04T18:18:56.351Z","cvss":[{"version":"3.1","score":4.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"adp"}],"updated_at":"2026-11-02T14:35:23.309349Z"}],"euvd":[{"id":"EUVD-2023-51006","description":"Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of Xen.\n","status":"published","published":"2024-03-20T10:40:18Z","modified":"2025-11-04T18:18:56Z","cvss":[{"version":"3.1","score":4.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T19:49:24.151242Z"}],"ghsa":[{"id":"GHSA-858p-q38q-g87r","title":"Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't...","description":"Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of Xen.","status":"published","published":"2024-03-20T15:32:56Z","modified":"2026-01-13T15:36:47Z","cvss":[{"version":"3.1","score":4.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-670"],"updated_at":"2026-11-02T15:05:34.558577Z"}],"nvd":[{"id":"CVE-2023-46840","description":"Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of Xen.\n","status":"published","published":"2024-03-20T11:15:08.18Z","modified":"2026-06-17T06:31:44.27Z","cvss":[{"version":"3.1","score":4.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-670"],"updated_at":"2026-11-02T14:09:10.192572Z"}],"osv":[{"id":"ALPINE-CVE-2023-46840","description":"Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of Xen.\n","status":"withdrawn","published":"2024-03-20T11:15:08.18Z","modified":"2026-07-14T08:03:30.997427989Z","cvss":[{"version":"3.1","score":4.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:27:49.709457Z"},{"id":"CVE-2023-46840","description":"Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of Xen.\n","status":"published","published":"2024-03-20T11:15:08.18Z","modified":"2026-04-16T04:35:16.438817215Z","cvss":[{"version":"3.1","score":4.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:34.287121Z"},{"id":"DEBIAN-CVE-2023-46840","description":"Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen.","status":"published","published":"2024-03-20T11:15:08.18Z","modified":"2026-10-26T18:02:49.632454207Z","cvss":[{"version":"3.1","score":4.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:40.275853Z"},{"id":"UBUNTU-CVE-2023-46840","description":"Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen.","status":"published","published":"2024-03-20T11:15:00Z","modified":"2026-10-17T12:56:42.357065173Z","cvss":[{"version":"3.1","score":4.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T16:54:23.935133Z"},{"id":"MGASA-2024-0047","title":"Updated xen, qemu and libvirt packages fix security vulnerabilities","description":"This update fixes several security issues and also improves stability.\n","status":"published","published":"2024-02-24T22:51:43Z","modified":"2026-04-16T04:44:23.384250046Z","updated_at":"2026-11-02T15:49:42.684501Z"},{"id":"openSUSE-SU-2024:13648-1","title":"xen-4.18.0_06-1.1 on GA media","description":"These are all security issues fixed in the xen-4.18.0_06-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:14:26.30817Z","updated_at":"2026-11-02T16:58:36.327643Z"},{"id":"SUSE-SU-2024:0266-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2023-46839: Fixed phantom functions assigned to incorrect contexts (XSA-449) (bsc#1218851)\n- CVE-2023-46840: Fixed VT-d: Failure to quarantine devices in !HVM builds (XSA-450) (bsc#1219080)\n","status":"published","published":"2024-01-30T13:19:20Z","modified":"2025-05-02T04:35:40.583688Z","updated_at":"2026-11-02T15:53:54.239786Z"},{"id":"SUSE-SU-2024:0830-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2023-46839: Fixed memory access through PCI device with phantom functions (XSA-449) (bsc#1218851).\n- CVE-2023-46840: Fixed Failure to quarantine devices in !HVM builds (XSA-450) (bsc#1219080).\n- CVE-2023-46841: Fixed shadow stack vs exceptions from emulation stubs (XSA-451) (bsc#1219885).\n","status":"published","published":"2024-03-11T08:38:46Z","modified":"2026-02-04T03:39:35.374591Z","updated_at":"2026-11-02T15:53:54.239786Z"}]}}