{"schemaVersion":3,"id":"SUSE-SU-2021:1023-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for xen\n\nThis update for xen fixes the following issues:\n\n- CVE-2021-3308: VUL-0: xen: IRQ vector leak on x86 (bsc#1181254, XSA-360)\n- CVE-2021-28687: VUL-0: xen: HVM soft-reset crashes toolstack (bsc#1183072, XSA-368)\n- CVE-2021-20257: VUL-0: xen: infinite loop issue in the e1000 NIC emulator (bsc#1182846)\n- CVE-2020-28368: VUL-0: xen: Intel RAPL sidechannel attack aka PLATYPUS attack aka (bsc#1178591, XSA-351)\n- L3: conring size for XEN HV's with huge memory to small. Inital Xen logs cut (bsc#1177204)\n- Kdump of HVM fails, soft-reset not handled by libxl (bsc#1179148)\n- OpenQA job causes libvirtd to dump core when running kdump inside domain (bsc#1181989)\n- Allow restart of xenwatchdogd, enable tuning of keep-alive interval and timeout\n  options via XENWATCHDOGD_ARGS= (bsc#1178736)\n- The receiving side did detect holes in a to-be-allocated superpage, but allocated a superpage anyway.\n  This resulted to over-allocation (bsc#1177112)\n- The receiving side may punch holes incorrectly into optimistically allocated superpages.\n  Also reduce overhead in bitmap handling (bsc#1177112)\n- Upstream bug fixes (bsc#1027519)","dates":{"published":"2021-04-06T15:52:02.000Z","modified":"2026-02-04T03:34:57.843Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"suse","product":"xen&distro=SUSE Linux Enterprise Server 12 SP5","name":"xen","label":"xen&distro=SUSE Linux Enterprise 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4.12.4_09-3.39.3","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20211023-1/","label":"www.suse.com/support/update/announcement/2021/suse-su-20211023-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1027519","label":"bugzilla.suse.com/1027519","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1177112","label":"bugzilla.suse.com/1177112","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1177204","label":"bugzilla.suse.com/1177204","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1178591","label":"bugzilla.suse.com/1178591","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1178736","label":"bugzilla.suse.com/1178736","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1179148","label":"bugzilla.suse.com/1179148","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1181254","label":"bugzilla.suse.com/1181254","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1181989","label":"bugzilla.suse.com/1181989","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1182846","label":"bugzilla.suse.com/1182846","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1183072","label":"bugzilla.suse.com/1183072","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2020-28368","label":"www.suse.com/security/cve/CVE-2020-28368","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2021-20257","label":"www.suse.com/security/cve/CVE-2021-20257","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28687","label":"www.suse.com/security/cve/CVE-2021-28687","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3308","label":"www.suse.com/security/cve/CVE-2021-3308","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2020-28368","CVE-2021-20257","CVE-2021-28687","CVE-2021-3308"],"downstream":[],"duplicates":[],"related":["CVE-2020-28368","CVE-2021-20257","CVE-2021-28687","CVE-2021-3308"]},"timeline":[{"kind":"published","date":"2021-04-06T15:52:02.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-04T03:34:57.843Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T15:05:41.239Z","stale":false,"partial":false}}