{"id":"CVE-2021-28697","aliases":["ALPINE-CVE-2021-28697","DEBIAN-CVE-2021-28697","DSA-4977-1","EUVD-2021-15354","GHSA-2h72-2hx7-mmcq","SUSE-SU-2021:14848-1","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-2021-28697","openSUSE-SU-2021:1236-1","openSUSE-SU-2021:2923-1"],"status":"published","title":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access...","description":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00263,"percentile":0.18183,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-269","CWE-362"],"published":"2021-08-27T18:37:41Z","modified":"2026-10-23T18:03:57Z","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":"4.0.0"},{"fixed":"4.13.3-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.13.3-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.14.2-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.15.0-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"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":"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-2021-28697"},{"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-2h72-2hx7-mmcq"},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-28697","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-28697","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-202114848-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1182654","tags":["report"]},{"url":"https://bugzilla.suse.com/1186013","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/1187369","tags":["report"]},{"url":"https://bugzilla.suse.com/1187376","tags":["report"]},{"url":"https://bugzilla.suse.com/1187378","tags":["report"]},{"url":"https://bugzilla.suse.com/1189150","tags":["report"]},{"url":"https://bugzilla.suse.com/1189376","tags":["report"]},{"url":"https://bugzilla.suse.com/1189378","tags":["report"]},{"url":"https://bugzilla.suse.com/1189632","tags":["report"]},{"url":"https://bugzilla.suse.com/1192526","tags":["report"]},{"url":"https://bugzilla.suse.com/1192554","tags":["report"]},{"url":"https://bugzilla.suse.com/1192555","tags":["report"]},{"url":"https://bugzilla.suse.com/1192559","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-0089","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-20255","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-2021-28697","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28698","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28701","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28703","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28705","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28706","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28709","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3527","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/security/cve/CVE-2021-3682","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3930","tags":["web"]},{"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/1188050","tags":["report"]},{"url":"https://bugzilla.suse.com/1189373","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-2021-28693","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-2021-28699","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://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://ubuntu.com/security/CVE-2021-28697","tags":["report"]},{"url":"https://xenbits.xen.org/xsa/advisory-379.html","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-28697","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-2021-28697","description":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.","status":"published","published":"2021-08-27T18:37:41Z","modified":"2024-08-03T21:47:33.045Z","updated_at":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-15354","description":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.","status":"published","published":"2021-08-27T18:37:41Z","modified":"2024-08-03T21:47:33Z","updated_at":"2026-11-03T03:24:46.117926Z"}],"ghsa":[{"id":"GHSA-2h72-2hx7-mmcq","title":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access...","description":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.","status":"published","published":"2022-05-24T19:12:22Z","modified":"2023-01-27T05:03:01Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269","CWE-362"],"updated_at":"2026-11-02T14:42:09.126228Z"}],"nvd":[{"id":"CVE-2021-28697","description":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.","status":"published","published":"2021-08-27T19:15:07.673Z","modified":"2026-06-17T03:46:49.227Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","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"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:06:57.67549Z"}],"osv":[{"id":"ALPINE-CVE-2021-28697","description":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.","status":"published","published":"2021-08-27T19:15:07.673Z","modified":"2026-10-23T17:17:56.175098888Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:48.646074Z"},{"id":"CVE-2021-28697","description":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.","status":"published","published":"2021-08-27T19:15:07.673Z","modified":"2026-03-15T22:37:01.359749Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:19.129331Z"},{"id":"DEBIAN-CVE-2021-28697","description":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.","status":"published","published":"2021-08-27T19:15:07.673Z","modified":"2026-10-23T18:03:57.487742019Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:34.94143Z"},{"id":"UBUNTU-CVE-2021-28697","description":"grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.","status":"published","published":"2021-08-27T19:15:00Z","modified":"2026-10-17T12:57:12.867566327Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"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-2021:14848-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2021-0089: Fixed Speculative Code Store Bypass (XSA-375) (bsc#1186433).\n- CVE-2021-20255: Fixed stack overflow via infinite recursion in eepro100 (bsc#1182654).\n- CVE-2021-28690: Fixed x86 TSX Async Abort protections not restored after S3 (XSA-377) (bsc#1186434).\n- CVE-2021-28692: Fixed inappropriate x86 IOMMU timeout detection / handling (XSA-373) (bsc#1186429).\n- CVE-2021-28697: Fixed grant table v2 status pages 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-2021-28701: Fixed race condition in XENMAPSPACE_grant_table handling (XSA-384) (bsc#1189632).\n- CVE-2021-28703: Fixed grant table v2 status pages may remain accessible after de-allocation (take two) (XSA-387) (bsc#1192555).\n- CVE-2021-28705, CVE-2021-28709: Fixed issues with partially successful P2M updates on x86 (XSA-389) (bsc#1192559).\n- CVE-2021-28706: Fixed guests may exceed their designated memory limit (XSA-385) (bsc#1192554).\n- CVE-2021-3527: Fixed unbounded stack allocation in usbredir (bsc#1186013).\n- CVE-2021-3592: Fixed invalid pointer initialization may lead to information disclosure in slirp (bootp) (bsc#1187369).\n- CVE-2021-3594: Fixed invalid pointer initialization may lead to information disclosure in slirp (udp) (bsc#1187378).\n- CVE-2021-3595: Fixed invalid pointer initialization may lead to information disclosure in slirp (tftp) (bsc#1187376).\n- CVE-2021-3682: Fixed free call on invalid pointer in usbredir bufp_alloc (bsc#1189150).\n- CVE-2021-3930: Fixed off-by-one error in mode_sense_page() in hw/scsi/scsi-disk.c (bsc#1192526).\n","status":"published","published":"2021-12-01T15:57:08Z","modified":"2025-05-02T04:30:58.855247Z","updated_at":"2026-11-02T15:53:49.138643Z"},{"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"}]}}