{"schemaVersion":3,"id":"SUSE-SU-2023:3923-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for the Linux Kernel (Live Patch 1 for SLE 15 SP5)\n\nThis update for the Linux Kernel 5.14.21-150500_55_7 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2023-3776: Fixed improper refcount update in cls_fw leads to use-after-free (bsc#1215119).\n- CVE-2023-4273: Fixed a flaw in the exFAT driver of the Linux kernel that alloawed a local privileged attacker to overflow the kernel stack (bsc#1214123).\n- CVE-2023-3609: Fixed reference counter leak leading to  overflow in net/sched (bsc#1213587).\n- CVE-2023-31248: Fixed an use-after-free vulnerability in nft_chain_lookup_byid that could allow a local attacker to escalate their privilege (bsc#1213064).","dates":{"published":"2023-09-30T15:34:09.000Z","modified":"2026-02-04T04:40:58.245Z","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-SP4_Update_14&distro=SUSE Linux Enterprise Live Patching 15 SP4","name":"kernel-livepatch-SLE15-SP4_Update_14","label":"kernel-livepatch-SLE15-SP4_Update_14&distro=SUSE Linux Enterprise Live Patching 15 SP4","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/kernel-livepatch-SLE15-SP4_Update_14&distro=SUSE Linux Enterprise Live Patching 15 SP4","purlType":"rpm","versions":[{"text":"< 3-150400.2.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3-150400.2.1","eol":null,"hubHref":null},{"vendor":"suse","product":"kernel-livepatch-SLE15-SP5_Update_1&distro=SUSE Linux Enterprise Live Patching 15 SP5","name":"kernel-livepatch-SLE15-SP5_Update_1","label":"kernel-livepatch-SLE15-SP5_Update_1&distro=SUSE Linux Enterprise Live Patching 15 SP5","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_1&distro=SUSE Linux Enterprise Live Patching 15 SP5","purlType":"rpm","versions":[{"text":"< 3-150500.2.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3-150500.2.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20233923-1/","label":"www.suse.com/support/update/announcement/2023/suse-su-20233923-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1213064","label":"bugzilla.suse.com/1213064","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1213587","label":"bugzilla.suse.com/1213587","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1214123","label":"bugzilla.suse.com/1214123","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1215119","label":"bugzilla.suse.com/1215119","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2023-31248","label":"www.suse.com/security/cve/CVE-2023-31248","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2023-3609","label":"www.suse.com/security/cve/CVE-2023-3609","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2023-3776","label":"www.suse.com/security/cve/CVE-2023-3776","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2023-4273","label":"www.suse.com/security/cve/CVE-2023-4273","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2023-31248","CVE-2023-3609","CVE-2023-3776","CVE-2023-4273"],"downstream":[],"duplicates":[],"related":["CVE-2023-31248","CVE-2023-3609","CVE-2023-3776","CVE-2023-4273"]},"timeline":[{"kind":"published","date":"2023-09-30T15:34:09.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-04T04:40:58.245Z","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":"2026-10-21T23:01:23.328Z","stale":false,"partial":false}}