{"id":"CVE-2021-28701","aliases":["ALPINE-CVE-2021-28701","DEBIAN-CVE-2021-28701","DSA-4977-1","EUVD-2021-15358","GHSA-423x-f92f-r5fm","SUSE-SU-2021:14848-1","SUSE-SU-2021:3140-1","SUSE-SU-2021:3140-2","SUSE-SU-2021:3141-1","SUSE-SU-2021:3181-1","SUSE-SU-2021:3213-1","SUSE-SU-2021:3322-1","SUSE-SU-2021:3842-1","SUSE-SU-2021:3849-1","SUSE-SU-2021:3977-1","UBUNTU-CVE-2021-28701","openSUSE-SU-2021:1301-1","openSUSE-SU-2021:3140-1"],"status":"published","title":"Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned...","description":"Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00266,"percentile":0.18677,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-269","CWE-362"],"published":"2021-09-08T13:02:28Z","modified":"2026-10-23T18:03:57Z","fixes":[{"ecosystem":"Alpine:v3.11","package":"xen","fixed_in":["4.13.3-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"xen","fixed_in":["4.13.3-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"xen","fixed_in":["4.14.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"xen","fixed_in":["4.15.0-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"xen","fixed_in":["4.15.0-r3"],"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"]},{"ecosystem":"SUSE:Linux 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Advisory","advisory","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L4MI3MQAPGILCLXBGQWPZHGE3ALSO4ZU/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEHZLIR5DFYYQBH55AERWHLO54OFU42C/","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/3HEHUIUWSSMCQGQY3GWX4J2SZGYP5W2Z/","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-2021-28701"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HEHUIUWSSMCQGQY3GWX4J2SZGYP5W2Z/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CEHZLIR5DFYYQBH55AERWHLO54OFU42C/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L4MI3MQAPGILCLXBGQWPZHGE3ALSO4ZU/"},{"url":"https://github.com/advisories/GHSA-423x-f92f-r5fm"},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-28701","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-28701","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-20213140-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1027519","tags":["report"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213140-2/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213141-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213181-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213213-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1189373","tags":["report"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213322-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1189882","tags":["report"]},{"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/support/update/announcement/2021/suse-su-20213842-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1192557","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28704","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28707","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28708","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213849-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213977-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1191363","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28702","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2021-28701","tags":["report"]},{"url":"https://xenbits.xen.org/xsa/advisory-384.html","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-28701","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YOWOZIQD7FWDNFL7CQF3WO5KZFKYYTDP/","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/W4HJ2XF2SFYPRBAICENTSEBE5KO7OY2G/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-28701","description":"Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.","status":"published","published":"2021-09-08T13:02:28Z","modified":"2024-08-03T21:47:33.2Z","updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-15358","description":"Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.","status":"published","published":"2021-09-08T13:02:28Z","modified":"2024-08-03T21:47:33Z","updated_at":"2026-11-03T03:24:46.117926Z"}],"ghsa":[{"id":"GHSA-423x-f92f-r5fm","title":"Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned...","description":"Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.","status":"published","published":"2022-05-24T19:13:51Z","modified":"2023-01-27T05:03:21Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269","CWE-362"],"updated_at":"2026-11-02T14:42:13.826528Z"}],"nvd":[{"id":"CVE-2021-28701","description":"Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.","status":"published","published":"2021-09-08T14:15:08.547Z","modified":"2026-06-17T03:46:49.863Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.4,"vector":"AV:L/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:06:58.05696Z"}],"osv":[{"id":"ALPINE-CVE-2021-28701","description":"Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.","status":"published","published":"2021-09-08T14:15:08.547Z","modified":"2026-10-23T17:17:56.175886415Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:48.646074Z"},{"id":"CVE-2021-28701","description":"Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.","status":"published","published":"2021-09-08T14:15:08.547Z","modified":"2026-03-15T22:37:00.676272Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:19.129331Z"},{"id":"DEBIAN-CVE-2021-28701","description":"Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.","status":"published","published":"2021-09-08T14:15:08.547Z","modified":"2026-10-23T18:03:57.592705807Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:34.94143Z"},{"id":"UBUNTU-CVE-2021-28701","description":"Another race in XENMAPSPACE_grant_table handling Guests are 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, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.","status":"published","published":"2021-09-08T14:15:00Z","modified":"2026-10-17T12:57:12.813590508Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/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-2021:1301-1","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- Upstream bug fixes (bsc#1027519)\n\nThis update was imported from the SUSE:SLE-15-SP2:Update update project.","status":"published","published":"2021-09-21T22:06:04Z","modified":"2026-02-04T04:15:19.474506Z","updated_at":"2026-11-02T16:58:32.266854Z"},{"id":"openSUSE-SU-2021:3140-1","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- Upstream bug fixes (bsc#1027519)\n","status":"published","published":"2021-09-18T12:37:21Z","modified":"2025-05-07T18:12:41.169343Z","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-2021:3140-1","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- Upstream bug fixes (bsc#1027519)\n","status":"published","published":"2021-09-18T12:37:20Z","modified":"2026-02-04T04:19:56.388403Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:3140-2","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- Upstream bug fixes (bsc#1027519)\n","status":"published","published":"2021-10-21T16:13:05Z","modified":"2026-02-04T02:47:59.252309Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:3141-1","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- Upstream bug fixes (bsc#1027519)\n","status":"published","published":"2021-09-18T12:37:44Z","modified":"2025-05-02T04:10:37.018259Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:3181-1","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- Upstream bug fixes (bsc#1027519)\n","status":"published","published":"2021-09-21T14:31:40Z","modified":"2026-02-04T04:37:57.240891Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:3213-1","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- Integrate bugfixes (bsc#1189373, bsc#1189378).\n","status":"published","published":"2021-09-23T14:24:12Z","modified":"2026-02-04T02:30:00.485804Z","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"},{"id":"SUSE-SU-2021:3842-1","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- CVE-2021-28704, CVE-2021-28707, CVE-2021-28708: Fixed PoD operations on misaligned GFNs (XSA-388) (bsc#1192557).\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\n- Integrate bugfixes (bsc#1189373, bsc#1189378).\n","status":"published","published":"2021-12-01T15:17:58Z","modified":"2026-02-04T02:54:27.909907Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:3849-1","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- CVE-2021-28704, CVE-2021-28707, CVE-2021-28708: Fixed PoD operations on misaligned GFNs (XSA-388) (bsc#1192557).\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- Integrate bugfixes (bsc#1189373, bsc#1189378)\n","status":"published","published":"2021-12-01T15:56:49Z","modified":"2026-02-04T02:24:30.056943Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:3977-1","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- CVE-2021-28702: Fixed PCI devices with RMRRs not deassigned correctly (XSA-386) (bsc#1191363).\n- CVE-2021-28704, CVE-2021-28707, CVE-2021-28708: Fixed PoD operations on misaligned GFNs (XSA-388) (bsc#1192557).\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\n- Upstream bug fixes (bsc#1027519)\n","status":"published","published":"2021-12-09T10:05:29Z","modified":"2026-02-04T03:03:32.175208Z","updated_at":"2026-11-02T15:53:50.066806Z"}]}}