{"id":"SUSE-SU-2026:3423-1","summary":"Security update for xen","details":"This update for xen fixes the following issues\n\n- CVE-2026-42493: x86 shadow paging is deprecated (bsc#1271528).\n- CVE-2026-42494,CVE-2026-42495,CVE-2026-62423,CVE-2026-62424,CVE-2026-62425: buffer overruns in libfsimage iso9660 handling (bsc#1271530).\n- CVE-2026-62426,CVE-2026-62427: sysctl and platform-op locks open to abuse (bsc#1271531).\n- CVE-2026-62428: grant-table: type confusion in grant-copy (bsc#1271532).\n- CVE-2026-62429: vNUMA domain cleanup may race other operations (bsc#1271534).\n- CVE-2026-62430: x86: Out-of-bounds read in vRTC emulation (bsc#1271535).\n- CVE-2026-62431: Viridian STIMER division by zero (bsc#1271536).\n- CVE-2026-62432: evtchn: Race between FIFO expand and reset (bsc#1271537).\n- CVE-2026-62433: correct buffer checks for DM_OP hypercalls (bsc#1271538).\n- CVE-2026-62434: PoD: Don't try to reclaim special pages (bsc#1271539).\n- pygrub is only supported in de-privileged mode (XSA-508) (bsc#1271947).\n","modified":"2026-07-30T17:15:08.109634165Z","published":"2026-07-30T07:50:00Z","related":["CVE-2026-42493","CVE-2026-42494","CVE-2026-42495","CVE-2026-62423","CVE-2026-62424","CVE-2026-62425","CVE-2026-62426","CVE-2026-62427","CVE-2026-62428","CVE-2026-62429","CVE-2026-62430","CVE-2026-62431","CVE-2026-62432","CVE-2026-62433","CVE-2026-62434"],"upstream":["CVE-2026-42493","CVE-2026-42494","CVE-2026-42495","CVE-2026-62423","CVE-2026-62424","CVE-2026-62425","CVE-2026-62426","CVE-2026-62427","CVE-2026-62428","CVE-2026-62429","CVE-2026-62430","CVE-2026-62431","CVE-2026-62432","CVE-2026-62433","CVE-2026-62434"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-20263423-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271528"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271530"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271531"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271532"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271533"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271534"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271535"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271536"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271537"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271538"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271539"},{"type":"REPORT","url":"https://bugzilla.suse.com/1271947"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-42493"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-42494"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-42495"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62423"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62424"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62425"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62426"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62427"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62428"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62429"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62430"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62431"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62432"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62433"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-62434"}],"affected":[{"package":{"name":"xen","ecosystem":"SUSE:Linux 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SP5-ESPOS","purl":"pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.6_14-150500.3.76.3"}]}],"ecosystem_specific":{"binaries":[{"xen":"4.17.6_14-150500.3.76.3","xen-devel":"4.17.6_14-150500.3.76.3","xen-libs":"4.17.6_14-150500.3.76.3","xen-tools":"4.17.6_14-150500.3.76.3","xen-tools-domU":"4.17.6_14-150500.3.76.3","xen-tools-xendomains-wait-disk":"4.17.6_14-150500.3.76.3"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:3423-1.json"}},{"package":{"name":"xen","ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 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SP5","purl":"pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.6_14-150500.3.76.3"}]}],"ecosystem_specific":{"binaries":[{"xen-libs":"4.17.6_14-150500.3.76.3","xen-tools":"4.17.6_14-150500.3.76.3","xen-tools-domU":"4.17.6_14-150500.3.76.3","xen-tools-xendomains-wait-disk":"4.17.6_14-150500.3.76.3","xen":"4.17.6_14-150500.3.76.3","xen-devel":"4.17.6_14-150500.3.76.3"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:3423-1.json"}}],"schema_version":"1.7.5"}