# Security update for the Linux Kernel (Live Patch 21 for SLE 15 SP4) Announcement ID: SUSE-SU-2024:3777-1 Release Date: 2024-10-29T17:03:52Z Rating: important References: * bsc#1225011 * bsc#1225012 * bsc#1225309 * bsc#1225311 * bsc#1225819 * bsc#1227471 * bsc#1231353 Cross-References: * CVE-2021-47598 * CVE-2023-52752 * CVE-2024-35862 * CVE-2024-35863 * CVE-2024-35864 * CVE-2024-35867 CVSS scores: * CVE-2021-47598 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2021-47598 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-52752 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-52752 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2024-35862 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2024-35863 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2024-35864 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2024-35867 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise Live Patching 15-SP4 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Real Time 15 SP4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 An update that solves six vulnerabilities and has one security fix can now be installed. ## Description: This update for the Linux Kernel 5.14.21-150400_24_100 fixes several issues. The following security issues were fixed: * CVE-2021-47598: sch_cake: do not call cake_destroy() from cake_init() (bsc#1227471). * CVE-2024-35863: Fixed potential UAF in is_valid_oplock_break() (bsc#1225011). * CVE-2023-52752: smb: client: fix use-after-free bug in cifs_debug_data_proc_show() (bsc#1225819). * CVE-2024-35862: Fixed potential UAF in smb2_is_network_name_deleted() (bsc#1225311). * CVE-2024-35867: Fixed potential UAF in cifs_stats_proc_show() (bsc#1225012). * CVE-2024-35864: Fixed potential UAF in smb2_is_valid_lease_break() (bsc#1225309). * Intermittent nfs mount failures (may be due to SUNRPC over UDP) (bsc#1231353) ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * openSUSE Leap 15.4 zypper in -t patch SUSE-2024-3777=1 * SUSE Linux Enterprise Live Patching 15-SP4 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2024-3777=1 ## Package List: * openSUSE Leap 15.4 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150400_24_100-default-13-150400.2.1 * kernel-livepatch-5_14_21-150400_24_100-default-debuginfo-13-150400.2.1 * kernel-livepatch-SLE15-SP4_Update_21-debugsource-13-150400.2.1 * SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150400_24_100-default-13-150400.2.1 * kernel-livepatch-5_14_21-150400_24_100-default-debuginfo-13-150400.2.1 * kernel-livepatch-SLE15-SP4_Update_21-debugsource-13-150400.2.1 ## References: * https://www.suse.com/security/cve/CVE-2021-47598.html * https://www.suse.com/security/cve/CVE-2023-52752.html * https://www.suse.com/security/cve/CVE-2024-35862.html * https://www.suse.com/security/cve/CVE-2024-35863.html * https://www.suse.com/security/cve/CVE-2024-35864.html * https://www.suse.com/security/cve/CVE-2024-35867.html * https://bugzilla.suse.com/show_bug.cgi?id=1225011 * https://bugzilla.suse.com/show_bug.cgi?id=1225012 * https://bugzilla.suse.com/show_bug.cgi?id=1225309 * https://bugzilla.suse.com/show_bug.cgi?id=1225311 * https://bugzilla.suse.com/show_bug.cgi?id=1225819 * https://bugzilla.suse.com/show_bug.cgi?id=1227471 * https://bugzilla.suse.com/show_bug.cgi?id=1231353