{"id":"CVE-2021-28695","aliases":["ALPINE-CVE-2021-28695","DEBIAN-CVE-2021-28695","DSA-4977-1","EUVD-2021-15352","GHSA-c3qw-gwpv-g4fw","SUSE-SU-2021:2922-1","SUSE-SU-2021:2923-1","SUSE-SU-2021:2924-1","SUSE-SU-2021:2925-1","SUSE-SU-2021:2943-1","SUSE-SU-2021:2955-1","SUSE-SU-2021:2957-1","SUSE-SU-2021:3322-1","UBUNTU-CVE-2021-28695","openSUSE-SU-2021:1236-1","openSUSE-SU-2021:2923-1"],"status":"published","title":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text...","description":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00378,"percentile":0.32059,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-08-27T18:46:33Z","modified":"2026-10-23T18:03:12Z","fixes":[{"ecosystem":"Alpine:v3.11","package":"xen","fixed_in":["4.13.3-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"xen","fixed_in":["4.13.3-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"xen","fixed_in":["4.14.2-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"xen","fixed_in":["4.15.0-r2"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"xen","fixed_in":["4.14.3-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"xen","fixed_in":["4.14.3-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"xen","fixed_in":["4.14.3-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.11","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.3-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.3-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.2-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.3-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.3-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.3-1"}]}]},{"source":"osv","ecosystem":"Debian:11","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.3-1~deb11u1"}]}],"versions":["4.14.2+25-gb6a8c4f72d-2"],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux 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Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2021/09/01/6","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://www.debian.org/security/2021/dsa-4977","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://security.gentoo.org/glsa/202208-23","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28695"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/"},{"url":"https://github.com/advisories/GHSA-c3qw-gwpv-g4fw"},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-28695","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-28695","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212922-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1027519","tags":["report"]},{"url":"https://bugzilla.suse.com/1137251","tags":["report"]},{"url":"https://bugzilla.suse.com/1176189","tags":["report"]},{"url":"https://bugzilla.suse.com/1179148","tags":["report"]},{"url":"https://bugzilla.suse.com/1179246","tags":["report"]},{"url":"https://bugzilla.suse.com/1180491","tags":["report"]},{"url":"https://bugzilla.suse.com/1181989","tags":["report"]},{"url":"https://bugzilla.suse.com/1183877","tags":["report"]},{"url":"https://bugzilla.suse.com/1185682","tags":["report"]},{"url":"https://bugzilla.suse.com/1186428","tags":["report"]},{"url":"https://bugzilla.suse.com/1186429","tags":["report"]},{"url":"https://bugzilla.suse.com/1186433","tags":["report"]},{"url":"https://bugzilla.suse.com/1186434","tags":["report"]},{"url":"https://bugzilla.suse.com/1188050","tags":["report"]},{"url":"https://bugzilla.suse.com/1189373","tags":["report"]},{"url":"https://bugzilla.suse.com/1189376","tags":["report"]},{"url":"https://bugzilla.suse.com/1189378","tags":["report"]},{"url":"https://bugzilla.suse.com/1189380","tags":["report"]},{"url":"https://bugzilla.suse.com/1189381","tags":["report"]},{"url":"https://bugzilla.suse.com/1189882","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-0089","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28690","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28692","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28693","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28694","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28695","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28696","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28697","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28698","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28699","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28700","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212923-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1183243","tags":["report"]},{"url":"https://bugzilla.suse.com/1187406","tags":["report"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212924-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1180846","tags":["report"]},{"url":"https://bugzilla.suse.com/1182654","tags":["report"]},{"url":"https://bugzilla.suse.com/1187369","tags":["report"]},{"url":"https://bugzilla.suse.com/1187376","tags":["report"]},{"url":"https://bugzilla.suse.com/1187378","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-20255","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3592","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3594","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3595","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212925-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212943-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212955-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1181254","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3308","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212957-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213322-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1189632","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28701","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2021-28695","tags":["report"]},{"url":"https://xenbits.xen.org/xsa/advisory-378.html","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-28695","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/VYJVCSKTOQY75TLGWH3HDYZAS33JTOTQ/","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/JLC632KAG76ZVELO6CCNNSZVUXPDVXOQ/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-28695","description":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).","status":"published","published":"2021-08-27T18:46:33Z","modified":"2024-08-03T21:47:33.202Z","updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-15352","description":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).","status":"published","published":"2021-08-27T18:46:33Z","modified":"2024-08-03T21:47:33Z","updated_at":"2026-11-03T03:24:46.117926Z"}],"ghsa":[{"id":"GHSA-c3qw-gwpv-g4fw","title":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text...","description":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).","status":"published","published":"2022-05-24T19:12:22Z","modified":"2023-01-27T05:03:06Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T14:42:10.172069Z"}],"nvd":[{"id":"CVE-2021-28695","description":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).","status":"published","published":"2021-08-27T19:15:07.59Z","modified":"2026-06-17T03:46:48.85Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:57.67549Z"}],"osv":[{"id":"ALPINE-CVE-2021-28695","description":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).","status":"published","published":"2021-08-27T19:15:07.59Z","modified":"2026-10-23T17:17:56.174137328Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T15:27:48.646074Z"},{"id":"CVE-2021-28695","description":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).","status":"published","published":"2021-08-27T19:15:07.59Z","modified":"2026-03-15T22:37:00.736787Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:19.129331Z"},{"id":"DEBIAN-CVE-2021-28695","description":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).","status":"published","published":"2021-08-27T19:15:07.59Z","modified":"2026-10-23T18:03:12.150035679Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:34.94143Z"},{"id":"UBUNTU-CVE-2021-28695","description":"IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).","status":"published","published":"2021-08-27T19:15:00Z","modified":"2026-10-17T12:56:15.098993113Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:26.779273Z"},{"id":"DSA-4977-1","title":"xen - security update","status":"published","published":"2021-09-20T00:00:00Z","modified":"2026-03-09T02:09:35.506965Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"openSUSE-SU-2021:1236-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\nUpdate to Xen 4.13.3 general bug fix release (bsc#1027519).\n\nSecurity issues fixed:\n\n- CVE-2021-28693: xen/arm: Boot modules are not scrubbed (bsc#1186428)\n- CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429)\n- CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433)\n- CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434)\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380).\n- CVE-2021-28700: No memory limit for dom0less domUs (XSA-383)(bsc#1189381).\n\nOther issues fixed:\n\n- Fixed 'Panic on CPU 0: IO-APIC + timer doesn't work!' (bsc#1180491)\n- Fixed an issue with xencommons, where file format expecations by fillup did not allign (bsc#1185682)\n- Fixed shell macro expansion in the spec file, so that ExecStart=\n  in xendomains-wait-disks.service is created correctly (bsc#1183877)\n- Upstream bug fixes (bsc#1027519)\n- Fixed Xen SLES11SP4 guest hangs on cluster (bsc#1188050).\n- xl monitoring process exits during xl save -p|-c keep the monitoring process running to cleanup the domU during shutdown (bsc#1176189).\n- Dom0 hangs when pinning CPUs for dom0 with HVM guest (bsc#1179246).\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n\nThis update was imported from the SUSE:SLE-15-SP2:Update update project.","status":"published","published":"2021-09-07T09:31:43Z","modified":"2026-02-04T02:28:33.693969Z","updated_at":"2026-11-02T16:58:32.266854Z"},{"id":"openSUSE-SU-2021:2923-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\nUpdate to Xen 4.13.3 general bug fix release (bsc#1027519).\n\nSecurity issues fixed:\n\n- CVE-2021-28693: xen/arm: Boot modules are not scrubbed (bsc#1186428)\n- CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429)\n- CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433)\n- CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434)\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380).\n- CVE-2021-28700: No memory limit for dom0less domUs (XSA-383)(bsc#1189381).\n\nOther issues fixed:\n\n- Fixed 'Panic on CPU 0: IO-APIC + timer doesn't work!' (bsc#1180491)\n- Fixed an issue with xencommons, where file format expecations by fillup did not allign (bsc#1185682)\n- Fixed shell macro expansion in the spec file, so that ExecStart=\n  in xendomains-wait-disks.service is created correctly (bsc#1183877)\n- Upstream bug fixes (bsc#1027519)\n- Fixed Xen SLES11SP4 guest hangs on cluster (bsc#1188050).\n- xl monitoring process exits during xl save -p|-c keep the monitoring process running to cleanup the domU during shutdown (bsc#1176189).\n- Dom0 hangs when pinning CPUs for dom0 with HVM guest (bsc#1179246).\n- Some long deprecated commands were finally removed in qemu6. Adjust libxl to use supported commands (bsc#1183243).\n- Update logrotate.conf, move global options into per-file sections to prevent globbering of global state (bsc#1187406).\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n","status":"published","published":"2021-09-02T08:11:37Z","modified":"2026-02-04T02:42:45.068919Z","updated_at":"2026-11-02T16:58:32.266854Z"},{"id":"SUSE-SU-2021:2922-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\nUpdate to Xen 4.13.3 general bug fix release (bsc#1027519).\n\nSecurity issues fixed:\n\n- CVE-2021-28693: xen/arm: Boot modules are not scrubbed (bsc#1186428)\n- CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429)\n- CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433)\n- CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434)\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380).\n- CVE-2021-28700: No memory limit for dom0less domUs (XSA-383)(bsc#1189381).\n\nOther issues fixed:\n\n- Fixed 'Panic on CPU 0: IO-APIC + timer doesn't work!' (bsc#1180491)\n- Fixed an issue with xencommons, where file format expecations by fillup did not allign (bsc#1185682)\n- Fixed shell macro expansion in the spec file, so that ExecStart=\n  in xendomains-wait-disks.service is created correctly (bsc#1183877)\n- Upstream bug fixes (bsc#1027519)\n- Fixed Xen SLES11SP4 guest hangs on cluster (bsc#1188050).\n- xl monitoring process exits during xl save -p|-c keep the monitoring process running to cleanup the domU during shutdown (bsc#1176189).\n- Dom0 hangs when pinning CPUs for dom0 with HVM guest (bsc#1179246).\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n","status":"published","published":"2021-09-02T08:10:22Z","modified":"2026-02-04T04:04:04.043961Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2923-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\nUpdate to Xen 4.13.3 general bug fix release (bsc#1027519).\n\nSecurity issues fixed:\n\n- CVE-2021-28693: xen/arm: Boot modules are not scrubbed (bsc#1186428)\n- CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429)\n- CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433)\n- CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434)\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380).\n- CVE-2021-28700: No memory limit for dom0less domUs (XSA-383)(bsc#1189381).\n\nOther issues fixed:\n\n- Fixed 'Panic on CPU 0: IO-APIC + timer doesn't work!' (bsc#1180491)\n- Fixed an issue with xencommons, where file format expecations by fillup did not allign (bsc#1185682)\n- Fixed shell macro expansion in the spec file, so that ExecStart=\n  in xendomains-wait-disks.service is created correctly (bsc#1183877)\n- Upstream bug fixes (bsc#1027519)\n- Fixed Xen SLES11SP4 guest hangs on cluster (bsc#1188050).\n- xl monitoring process exits during xl save -p|-c keep the monitoring process running to cleanup the domU during shutdown (bsc#1176189).\n- Dom0 hangs when pinning CPUs for dom0 with HVM guest (bsc#1179246).\n- Some long deprecated commands were finally removed in qemu6. Adjust libxl to use supported commands (bsc#1183243).\n- Update logrotate.conf, move global options into per-file sections to prevent globbering of global state (bsc#1187406).\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n","status":"published","published":"2021-09-02T08:11:36Z","modified":"2025-05-02T04:30:58.917642Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2924-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2021-28693: xen/arm: Boot modules are not scrubbed (bsc#1186428)\n- CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429)\n- CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433)\n- CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434)\n- CVE-2021-20255: Fixed stack overflow via infinite recursion in eepro100 (bsc#1182654)\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380).\n- CVE-2021-28700: No memory limit for dom0less domUs (XSA-383)(bsc#1189381).\n- CVE-2021-3592: slirp: invalid pointer initialization may lead to information disclosure (bootp)(bsc#1187369).\n- CVE-2021-3594: slirp: invalid pointer initialization may lead to information disclosure (udp)(bsc#1187378).\n- CVE-2021-3595: slirp: invalid pointer initialization may lead to information disclosure (tftp)(bsc#1187376).\n\nOther issues fixed:\n\n- Fixed 'Panic on CPU 0: IO-APIC + timer doesn't work!' (bsc#1180491)\n- Fixed an issue with xencommons, where file format expecations by fillup did not allign (bsc#1185682)\n- Upstream bug fixes (bsc#1027519)\n\n- Dom0 hangs when pinning CPUs for dom0 with HVM guest (bsc#1179246).\n- Fixed Xen SLES11SP4 guest hangs on cluster (bsc#1188050).\n- Fixed PVHVM SLES12 SP5 - NMI Watchdog CPU Stuck (bsc#1180846).\n- Core cannot be opened when using xl dump-core of VM with PTF (bsc#1183243)\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n","status":"published","published":"2021-09-02T08:12:49Z","modified":"2026-02-04T04:33:23.775608Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2925-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2021-28693: xen/arm: Boot modules are not scrubbed (bsc#1186428)\n- CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429)\n- CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433)\n- CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434)\n\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380).\n- CVE-2021-28700: No memory limit for dom0less domUs (XSA-383)(bsc#1189381).\n\nOther issues fixed:\n\n- Fixed 'Panic on CPU 0: IO-APIC + timer doesn't work!' (bsc#1180491)\n- Upstream bug fixes (bsc#1027519)\n- Dom0 hangs when pinning CPUs for dom0 with HVM guest (bsc#1179246).\n- Fixed Xen SLES11SP4 guest hangs on cluster (bsc#1188050).\n- Fixed PVHVM SLES12 SP5 - NMI Watchdog CPU Stuck (bsc#1180846).\n- Core cannot be opened when using xl dump-core of VM with PTF (bsc#1183243).\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n","status":"published","published":"2021-09-02T12:40:10Z","modified":"2026-02-04T02:13:33.615392Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2943-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429).\n- CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433).\n- CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380).\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434).\n\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n","status":"published","published":"2021-09-03T07:26:23Z","modified":"2026-02-04T03:59:51.547563Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2955-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380).\n- CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429)\n- CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434)\n- CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433)\n- CVE-2021-20255: Fixed stack overflow via infinite recursion in eepro100 (bsc#1182654)\n- CVE-2021-3592: slirp: invalid pointer initialization may lead to information disclosure (bootp)(bsc#1187369).\n- CVE-2021-3594: slirp: invalid pointer initialization may lead to information disclosure (udp)(bsc#1187378).\n- CVE-2021-3595: slirp: invalid pointer initialization may lead to information disclosure (tftp)(bsc#1187376).\n- CVE-2021-3308: Fixed IRQ vector leak on x86 (XSA-360)(bsc#1181254).\n\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n","status":"published","published":"2021-09-03T12:45:10Z","modified":"2026-02-04T04:37:20.894835Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2957-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2021-3594: slirp: invalid pointer initialization may lead to information disclosure (udp)(bsc#1187378).\n- CVE-2021-3595: slirp: invalid pointer initialization may lead to information disclosure (tftp)(bsc#1187376).\n- CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380).\n- CVE-2021-20255: Fixed stack overflow via infinite recursion in eepro100 (bsc#1182654)\n- CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434)\n- CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429)\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433)\n- CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-3592: slirp: invalid pointer initialization may lead to information disclosure (bootp)(bsc#1187369).\n\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n","status":"published","published":"2021-09-06T08:34:19Z","modified":"2026-02-04T02:45:06.621847Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:3322-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2021-28701: Fixed race condition in XENMAPSPACE_grant_table handling (XSA-384) (bsc#1189632).\n\n- CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: Fixed IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).\n- CVE-2021-28697: Fixed grant table v2 status pages that may remain accessible after de-allocation (XSA-379)(bsc#1189376).\n- CVE-2021-28698: Fixed long running loops in grant table handling (XSA-380)(bsc#1189378).\n- CVE-2021-20255: Fixed eepro100 stack overflow via infinite recursion (bsc#1182654).\n- CVE-2021-3592: Fixed invalid pointer initialization may lead to information disclosure (bootp) (bsc#1187369).\n- CVE-2021-3594: Fixed invalid pointer initialization may lead to information disclosure (udp) (bsc#1187378).\n- CVE-2021-3595: Fixed invalid pointer initialization may lead to information disclosure (tftp) (bsc#1187376).\n- CVE-2021-28692: Fixed inappropriate x86 IOMMU timeout detection / handling (XSA-373)(bsc#1186429).\n- CVE-2021-0089: Fixed Speculative Code Store Bypass (XSA-375)(bsc#1186433).\n- CVE-2021-28690: Fixed x86 TSX Async Abort protections not restored after S3 (XSA-377)(bsc#1186434).\n\n- Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).\n","status":"published","published":"2021-10-07T16:23:05Z","modified":"2026-02-04T04:06:51.259331Z","updated_at":"2026-11-02T15:53:49.605187Z"}]}}