{"schema_version":"1.7.3","id":"SUSE-SU-2021:1251-1","published":"2021-04-19T06:58:14Z","modified":"2026-02-04T02:29:08.656609Z","related":["CVE-2021-20257","CVE-2021-27379"],"upstream":["CVE-2021-20257","CVE-2021-27379"],"summary":"Security update for xen","details":"This update for xen fixes the following issues:\n\n- CVE-2021-27379: Fixed an issue where entries in the IOMMU were not being updated under certain circumstances due to improper backport of XSA-321 (XSA-366, bsc#1182431)\n- CVE-2021-20257: Fixed an infinite loop in the e1000 NIC emulator (bsc#1182846)\n","affected":[{"package":{"name":"xen","ecosystem":"SUSE:OpenStack Cloud 9","purl":"pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%209"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.4_16-2.51.1"}]}],"ecosystem_specific":{"binaries":[{"xen":"4.11.4_16-2.51.1","xen-doc-html":"4.11.4_16-2.51.1","xen-libs":"4.11.4_16-2.51.1","xen-libs-32bit":"4.11.4_16-2.51.1","xen-tools":"4.11.4_16-2.51.1","xen-tools-domU":"4.11.4_16-2.51.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:1251-1.json"}},{"package":{"name":"xen","ecosystem":"SUSE:OpenStack Cloud Crowbar 9","purl":"pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.4_16-2.51.1"}]}],"ecosystem_specific":{"binaries":[{"xen":"4.11.4_16-2.51.1","xen-doc-html":"4.11.4_16-2.51.1","xen-libs":"4.11.4_16-2.51.1","xen-libs-32bit":"4.11.4_16-2.51.1","xen-tools":"4.11.4_16-2.51.1","xen-tools-domU":"4.11.4_16-2.51.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:1251-1.json"}},{"package":{"name":"xen","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","purl":"pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.4_16-2.51.1"}]}],"ecosystem_specific":{"binaries":[{"xen":"4.11.4_16-2.51.1","xen-doc-html":"4.11.4_16-2.51.1","xen-libs":"4.11.4_16-2.51.1","xen-libs-32bit":"4.11.4_16-2.51.1","xen-tools":"4.11.4_16-2.51.1","xen-tools-domU":"4.11.4_16-2.51.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:1251-1.json"}},{"package":{"name":"xen","ecosystem":"SUSE:Linux Enterprise Server 12 SP4-LTSS","purl":"pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.4_16-2.51.1"}]}],"ecosystem_specific":{"binaries":[{"xen":"4.11.4_16-2.51.1","xen-doc-html":"4.11.4_16-2.51.1","xen-libs":"4.11.4_16-2.51.1","xen-libs-32bit":"4.11.4_16-2.51.1","xen-tools":"4.11.4_16-2.51.1","xen-tools-domU":"4.11.4_16-2.51.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:1251-1.json"}}],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2021/suse-su-20211251-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1178591"},{"type":"REPORT","url":"https://bugzilla.suse.com/1182431"},{"type":"REPORT","url":"https://bugzilla.suse.com/1182846"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-20257"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-27379"}]}