{"schemaVersion":3,"id":"SUSE-SU-2021:0809-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for the Linux Kernel (Live Patch 21 for SLE 15 SP1)\n\nThis update for the Linux Kernel 4.12.14-197_78 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2020-29368: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check (bsc#1179664).\n- CVE-2021-3347: Fixed a use-after-free in the PI futexes during fault handling, allowing local users to execute code in the kernel (bsc#1181553).\n- CVE-2020-27786: Fixed a potential user after free which could have led to memory corruption or privilege escalation (bsc#1179616).\n- CVE-2021-0342: Fixed a potential memory corruption due to a use after free which could have led to local escalation of privilege with System execution privileges required (bsc#1180859).","dates":{"published":"2021-03-17T16:24:32.000Z","modified":"2026-02-04T03:52:48.813Z","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":"kernel-livepatch-SLE15-SP1_Update_21&distro=SUSE Linux Enterprise Live Patching 15 SP1","name":"kernel-livepatch-SLE15-SP1_Update_21","label":"kernel-livepatch-SLE15-SP1_Update_21&distro=SUSE Linux Enterprise Live Patching 15 SP1","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/kernel-livepatch-SLE15-SP1_Update_21&distro=SUSE Linux Enterprise Live Patching 15 SP1","purlType":"rpm","versions":[{"text":"< 3-2.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3-2.2","eol":null,"hubHref":null},{"vendor":"suse","product":"kgraft-patch-SLE12-SP5_Update_14&distro=SUSE Linux Enterprise Live Patching 12 SP5","name":"kgraft-patch-SLE12-SP5_Update_14","label":"kgraft-patch-SLE12-SP5_Update_14&distro=SUSE Linux Enterprise Live Patching 12 SP5","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_14&distro=SUSE Linux Enterprise Live Patching 12 SP5","purlType":"rpm","versions":[{"text":"< 3-2.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3-2.2","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20210809-1/","label":"www.suse.com/support/update/announcement/2021/suse-su-20210809-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1179616","label":"bugzilla.suse.com/1179616","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1179664","label":"bugzilla.suse.com/1179664","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1180859","label":"bugzilla.suse.com/1180859","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1181553","label":"bugzilla.suse.com/1181553","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2020-27786","label":"www.suse.com/security/cve/CVE-2020-27786","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29368","label":"www.suse.com/security/cve/CVE-2020-29368","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2021-0342","label":"www.suse.com/security/cve/CVE-2021-0342","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3347","label":"www.suse.com/security/cve/CVE-2021-3347","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2020-27786","CVE-2020-29368","CVE-2021-0342","CVE-2021-3347"],"downstream":[],"duplicates":[],"related":["CVE-2020-27786","CVE-2020-29368","CVE-2021-0342","CVE-2021-3347"]},"timeline":[{"kind":"published","date":"2021-03-17T16:24:32.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-04T03:52:48.813Z","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":"2026-10-22T08:40:11.443Z","stale":false,"partial":false}}