{"schema_version":"1.7.3","id":"SUSE-SU-2023:3923-1","published":"2023-09-30T15:34:09Z","modified":"2026-02-04T04:40:58.245110Z","related":["CVE-2023-31248","CVE-2023-3609","CVE-2023-3776","CVE-2023-4273"],"upstream":["CVE-2023-31248","CVE-2023-3609","CVE-2023-3776","CVE-2023-4273"],"summary":"Security update for the Linux Kernel (Live Patch 1 for SLE 15 SP5)","details":"This 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).\n","affected":[{"package":{"name":"kernel-livepatch-SLE15-SP4_Update_14","ecosystem":"SUSE:Linux Enterprise Live Patching 15 SP4","purl":"pkg:rpm/suse/kernel-livepatch-SLE15-SP4_Update_14&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3-150400.2.1"}]}],"ecosystem_specific":{"binaries":[{"kernel-livepatch-5_14_21-150400_24_69-default":"3-150400.2.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2023:3923-1.json"}},{"package":{"name":"kernel-livepatch-SLE15-SP5_Update_1","ecosystem":"SUSE:Linux Enterprise Live Patching 15 SP5","purl":"pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3-150500.2.1"}]}],"ecosystem_specific":{"binaries":[{"kernel-livepatch-5_14_21-150500_55_7-default":"3-150500.2.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2023:3923-1.json"}}],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2023/suse-su-20233923-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1213064"},{"type":"REPORT","url":"https://bugzilla.suse.com/1213587"},{"type":"REPORT","url":"https://bugzilla.suse.com/1214123"},{"type":"REPORT","url":"https://bugzilla.suse.com/1215119"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2023-31248"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2023-3609"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2023-3776"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2023-4273"}]}