{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_security_advisory","csaf_version":"2.0","distribution":{"text":"Copyright 2023 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"Security update for xen","title":"Title of the patch"},{"category":"description","text":"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","title":"Description of the patch"},{"category":"details","text":"HPE-Helion-OpenStack-8-2021-3213,SUSE-2021-3213,SUSE-OpenStack-Cloud-8-2021-3213,SUSE-OpenStack-Cloud-Crowbar-8-2021-3213,SUSE-SLE-SAP-12-SP3-2021-3213,SUSE-SLE-SERVER-12-SP3-2021-3213,SUSE-SLE-SERVER-12-SP3-BCL-2021-3213","title":"Patchnames"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"self","summary":"URL for SUSE-SU-2021:3213-1","url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213213-1/"},{"category":"external","summary":"SUSE ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"self","summary":"URL of this CSAF notice","url":"https://ftp.suse.com/pub/projects/security/csaf/suse-su-2021_3213-1.json"},{"category":"self","summary":"E-Mail link for SUSE-SU-2021:3213-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2021-September/009501.html"},{"category":"self","summary":"SUSE Bug 1189373","url":"https://bugzilla.suse.com/1189373"},{"category":"self","summary":"SUSE Bug 1189378","url":"https://bugzilla.suse.com/1189378"},{"category":"self","summary":"SUSE Bug 1189632","url":"https://bugzilla.suse.com/1189632"},{"category":"self","summary":"SUSE CVE CVE-2021-28701 page","url":"https://www.suse.com/security/cve/CVE-2021-28701/"}],"title":"Security update for xen","tracking":{"current_release_date":"2021-09-23T14:24:12Z","generator":{"date":"2021-09-23T14:24:12Z","engine":{"name":"cve-database.git:bin/generate-csaf.pl","version":"1"}},"id":"SUSE-SU-2021:3213-1","initial_release_date":"2021-09-23T14:24:12Z","revision_history":[{"date":"2021-09-23T14:24:12Z","number":"1","summary":"Current 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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.","title":"Vulnerability description"}],"product_status":{"fixed":["HPE Helion OpenStack 8:xen-4.9.4_22-3.94.2.x86_64","HPE Helion OpenStack 8:xen-doc-html-4.9.4_22-3.94.2.x86_64","HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_22-3.94.2.x86_64","HPE Helion OpenStack 8:xen-libs-4.9.4_22-3.94.2.x86_64","HPE Helion OpenStack 8:xen-tools-4.9.4_22-3.94.2.x86_64","HPE Helion OpenStack 8:xen-tools-domU-4.9.4_22-3.94.2.x86_64","SUSE Linux Enterprise Server 12 SP3-BCL:xen-4.9.4_22-3.94.2.x86_64","SUSE Linux Enterprise Server 12 SP3-BCL:xen-doc-html-4.9.4_22-3.94.2.x86_64","SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-32bit-4.9.4_22-3.94.2.x86_64","SUSE Linux Enterprise Server 12 SP3-BCL:xen-libs-4.9.4_22-3.94.2.x86_64","SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-4.9.4_22-3.94.2.x86_64","SUSE Linux Enterprise Server 12 SP3-BCL:xen-tools-domU-4.9.4_22-3.94.2.x86_64","SUSE Linux Enterprise Server 12 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