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This allow a domain to allocate memory beyond what an administrator originally configured.","status":"published","published":"2021-08-27T19:15:07.88Z","modified":"2026-03-14T14:57:13.479189Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:19.129331Z"},{"id":"DEBIAN-CVE-2021-28700","description":"xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured.","status":"published","published":"2021-08-27T19:15:07.88Z","modified":"2026-10-23T18:03:59.228290779Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:34.94143Z"},{"id":"UBUNTU-CVE-2021-28700","description":"xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured.","status":"published","published":"2021-08-27T19:15:00Z","modified":"2026-10-17T12:57:12.834230574Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/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"}]}}