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