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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.2617
                   Security update for the Linux Kernel
                                10 May 2023

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Linux Kernel
Publisher:         SUSE
Operating System:  SUSE
Resolution:        Patch/Upgrade
CVE Names:         CVE-2023-30772 CVE-2023-2176 CVE-2023-2162
                   CVE-2023-2008 CVE-2023-1998 CVE-2023-1990
                   CVE-2023-1989 CVE-2023-1872 CVE-2023-1855
                   CVE-2023-1838 CVE-2023-1670 CVE-2023-1611
                   CVE-2022-43945 CVE-2022-2196 CVE-2020-36691

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2023/suse-su-20232146-1

Comment: CVSS (Max):  8.8 CVE-2022-43945 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
         CVSS Source: SUSE
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

- --------------------------BEGIN INCLUDED TEXT--------------------

Security update for the Linux Kernel

Announcement ID:  SUSE-SU-2023:2146-1
     Rating:      important
                    o #1202353
                    o #1205128
                    o #1206992
                    o #1209613
                    o #1209687
                    o #1209777
                    o #1209871
                    o #1210202
                    o #1210203
                    o #1210301
   References:      o #1210329
                    o #1210336
                    o #1210337
                    o #1210414
                    o #1210417
                    o #1210453
                    o #1210469
                    o #1210506
                    o #1210629
                    o #1210647

                    o CVE-2020-36691
                    o CVE-2022-2196
                    o CVE-2022-43945
                    o CVE-2023-1611
                    o CVE-2023-1670
                    o CVE-2023-1838
                    o CVE-2023-1855
Cross-References:   o CVE-2023-1872
                    o CVE-2023-1989
                    o CVE-2023-1990
                    o CVE-2023-1998
                    o CVE-2023-2008
                    o CVE-2023-2162
                    o CVE-2023-2176
                    o CVE-2023-30772

                    o CVE-2020-36691 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N
                      /S:U/C:N/I:N/A:H
                    o CVE-2020-36691 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:N/I:N/A:H
                    o CVE-2022-2196 ( SUSE ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/
                      S:U/C:H/I:N/A:N
                    o CVE-2022-2196 ( NVD ): 5.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:U/C:L/I:H/A:L
                    o CVE-2022-43945 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N
                      /S:U/C:H/I:H/A:H
                    o CVE-2022-43945 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/
                      S:U/C:N/I:N/A:H
                    o CVE-2023-1611 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:U/C:N/I:N/A:H
                    o CVE-2023-1611 ( NVD ): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:U/C:H/I:N/A:H
                    o CVE-2023-1670 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/
                      S:U/C:N/I:N/A:H
                    o CVE-2023-1670 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-1838 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:N/I:N/A:H
                    o CVE-2023-1838 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:H/I:N/A:H
                    o CVE-2023-1855 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-1855 ( NVD ): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:U/C:H/I:N/A:H
                    o CVE-2023-1872 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
  CVSS scores:      o CVE-2023-1872 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-1989 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-1989 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-1990 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-1990 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:U/C:N/I:N/A:H
                    o CVE-2023-1998 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:C/C:H/I:N/A:N
                    o CVE-2023-1998 ( NVD ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:C/C:H/I:N/A:N
                    o CVE-2023-2008 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-2008 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-2162 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-2162 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:H/I:N/A:N
                    o CVE-2023-2176 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-2176 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
                      S:U/C:H/I:H/A:H
                    o CVE-2023-30772 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N
                      /S:U/C:H/I:H/A:H
                    o CVE-2023-30772 ( NVD ): 6.4 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/
                      S:U/C:H/I:H/A:H

                    o SUSE Enterprise Storage 7
                    o SUSE Linux Enterprise High Availability Extension 15 SP2
                    o SUSE Linux Enterprise High Performance Computing 15 SP2
                    o SUSE Linux Enterprise High Performance Computing 15 SP2
                      LTSS 15-SP2
                    o SUSE Linux Enterprise Live Patching 15-SP2
    Affected        o SUSE Linux Enterprise Server 15 SP2
    Products:       o SUSE Linux Enterprise Server 15 SP2 Business Critical
                      Linux 15-SP2
                    o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
                    o SUSE Linux Enterprise Server for SAP Applications 15 SP2
                    o SUSE Manager Proxy 4.1
                    o SUSE Manager Retail Branch Server 4.1
                    o SUSE Manager Server 4.1

An update that solves 15 vulnerabilities and has five fixes can now be
installed.

Description:

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security
and bugfixes.

The following security bugs were fixed:

  o CVE-2023-1872:Fixed a use after free vulnerability in the io_uring
    subsystem, which could lead to local privilege escalation (bsc#1210414).
  o CVE-2022-2196: Fixed a regression related to KVM that allowed for
    speculative execution attacks (bsc#1206992).
  o CVE-2023-1670: Fixed a use after free in the Xircom 16-bit PCMCIA Ethernet
    driver. A local user could use this flaw to crash the system or potentially
    escalate their privileges on the system (bsc#1209871).
  o CVE-2023-2162: Fixed an use-after-free flaw in iscsi_sw_tcp_session_create
    (bsc#1210647).
  o CVE-2023-2176: A vulnerability was found in compare_netdev_and_ip in
    drivers/infiniband/core/cma.c in RDMA. The improper cleanup results in
    out-of-boundary read, where a local user can utilize this problem to crash
    the system or escalation of privilege (bsc#1210629).
  o CVE-2023-1998: Fixed a use after free during login when accessing the shost
    ipaddress (bsc#1210506).
  o CVE-2023-30772: Fixed a race condition and resultant use-after-free in
    da9150_charger_remove (bsc#1210329).
  o CVE-2023-2008: A flaw was found in the fault handler of the udmabuf device
    driver. An attacker can leverage this vulnerability to escalate privileges
    and execute arbitrary code (bsc#1210453).
  o CVE-2023-1855: Fixed a use after free in xgene_hwmon_remove (bsc#1210202).
  o CVE-2020-36691: Fixed a denial of service (unbounded recursion)
    vulnerability via a nested Netlink policy with a back reference (bsc#
    1209613 bsc#1209777).
  o CVE-2023-1990: Fixed a use after free in ndlc_remove (bsc#1210337).
  o CVE-2023-1989: Fixed a use after free in btsdio_remove (bsc#1210336).
  o CVE-2022-43945: Fixed a buffer overflow in the NFSD implementation (bsc#
    1205128).
  o CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot (bsc#
    1209687).
  o CVE-2023-1838: Fixed an use-after-free flaw in virtio network subcomponent.
    This flaw could allow a local attacker to crash the system and lead to a
    kernel information leak problem. (bsc#1210203).

The following non-security bugs were fixed:

  o Drivers: vmbus: Check for channel allocation before looking up relids
    (git-fixes).
  o Replace mkinitrd dependency with dracut (bsc#1202353).
  o cifs: fix negotiate context parsing (bsc#1210301).

Special Instructions and Notes:

  o Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE Important update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  o SUSE Linux Enterprise Live Patching 15-SP2
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2023-2146=1
  o SUSE Linux Enterprise High Availability Extension 15 SP2
    zypper in -t patch SUSE-SLE-Product-HA-15-SP2-2023-2146=1
  o SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP2-LTSS-2023-2146=1
  o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-LTSS-2023-2146=1
  o SUSE Linux Enterprise Server for SAP Applications 15 SP2
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP2-2023-2146=1
  o SUSE Enterprise Storage 7
    zypper in -t patch SUSE-Storage-7-2023-2146=1

Package List:

  o SUSE Linux Enterprise Live Patching 15-SP2 (nosrc)
       kernel-default-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64)
       kernel-default-livepatch-5.3.18-150200.24.151.1
       kernel-livepatch-SLE15-SP2_Update_36-debugsource-1-150200.5.3.1
       kernel-livepatch-5_3_18-150200_24_151-default-1-150200.5.3.1
       kernel-default-debugsource-5.3.18-150200.24.151.1
       kernel-default-debuginfo-5.3.18-150200.24.151.1
       kernel-default-livepatch-devel-5.3.18-150200.24.151.1
       kernel-livepatch-5_3_18-150200_24_151-default-debuginfo-1-150200.5.3.1
  o SUSE Linux Enterprise High Availability Extension 15 SP2 (aarch64 ppc64le
    s390x x86_64)
       ocfs2-kmp-default-debuginfo-5.3.18-150200.24.151.1
       gfs2-kmp-default-debuginfo-5.3.18-150200.24.151.1
       cluster-md-kmp-default-debuginfo-5.3.18-150200.24.151.1
       dlm-kmp-default-debuginfo-5.3.18-150200.24.151.1
       dlm-kmp-default-5.3.18-150200.24.151.1
       kernel-default-debugsource-5.3.18-150200.24.151.1
       kernel-default-debuginfo-5.3.18-150200.24.151.1
       cluster-md-kmp-default-5.3.18-150200.24.151.1
       gfs2-kmp-default-5.3.18-150200.24.151.1
       ocfs2-kmp-default-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise High Availability Extension 15 SP2 (nosrc)
       kernel-default-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2
    (aarch64 nosrc x86_64)
       kernel-preempt-5.3.18-150200.24.151.1
       kernel-default-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2
    (aarch64 x86_64)
       kernel-default-base-5.3.18-150200.24.151.1.150200.9.73.1
       kernel-default-devel-debuginfo-5.3.18-150200.24.151.1
       kernel-preempt-devel-5.3.18-150200.24.151.1
       kernel-default-devel-5.3.18-150200.24.151.1
       kernel-default-debugsource-5.3.18-150200.24.151.1
       kernel-default-debuginfo-5.3.18-150200.24.151.1
       kernel-obs-build-debugsource-5.3.18-150200.24.151.1
       kernel-preempt-debuginfo-5.3.18-150200.24.151.1
       kernel-preempt-debugsource-5.3.18-150200.24.151.1
       kernel-preempt-devel-debuginfo-5.3.18-150200.24.151.1
       kernel-syms-5.3.18-150200.24.151.1
       kernel-obs-build-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2
    (noarch)
       kernel-devel-5.3.18-150200.24.151.1
       kernel-macros-5.3.18-150200.24.151.1
       kernel-source-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (noarch
    nosrc)
       kernel-docs-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (aarch64 ppc64le s390x
    x86_64 nosrc)
       kernel-default-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (aarch64 ppc64le s390x
    x86_64)
       reiserfs-kmp-default-debuginfo-5.3.18-150200.24.151.1
       kernel-default-base-5.3.18-150200.24.151.1.150200.9.73.1
       kernel-default-devel-debuginfo-5.3.18-150200.24.151.1
       kernel-default-devel-5.3.18-150200.24.151.1
       kernel-default-debugsource-5.3.18-150200.24.151.1
       kernel-default-debuginfo-5.3.18-150200.24.151.1
       kernel-obs-build-debugsource-5.3.18-150200.24.151.1
       reiserfs-kmp-default-5.3.18-150200.24.151.1
       kernel-syms-5.3.18-150200.24.151.1
       kernel-obs-build-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (noarch)
       kernel-devel-5.3.18-150200.24.151.1
       kernel-macros-5.3.18-150200.24.151.1
       kernel-source-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (noarch nosrc)
       kernel-docs-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (aarch64 nosrc x86_64)
       kernel-preempt-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (aarch64 x86_64)
       kernel-preempt-debugsource-5.3.18-150200.24.151.1
       kernel-preempt-debuginfo-5.3.18-150200.24.151.1
       kernel-preempt-devel-debuginfo-5.3.18-150200.24.151.1
       kernel-preempt-devel-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server for SAP Applications 15 SP2 (nosrc ppc64le
    x86_64)
       kernel-default-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server for SAP Applications 15 SP2 (ppc64le x86_64)
       reiserfs-kmp-default-debuginfo-5.3.18-150200.24.151.1
       kernel-default-base-5.3.18-150200.24.151.1.150200.9.73.1
       kernel-default-devel-debuginfo-5.3.18-150200.24.151.1
       kernel-default-devel-5.3.18-150200.24.151.1
       kernel-default-debugsource-5.3.18-150200.24.151.1
       kernel-default-debuginfo-5.3.18-150200.24.151.1
       kernel-obs-build-debugsource-5.3.18-150200.24.151.1
       reiserfs-kmp-default-5.3.18-150200.24.151.1
       kernel-syms-5.3.18-150200.24.151.1
       kernel-obs-build-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server for SAP Applications 15 SP2 (noarch)
       kernel-devel-5.3.18-150200.24.151.1
       kernel-macros-5.3.18-150200.24.151.1
       kernel-source-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server for SAP Applications 15 SP2 (noarch nosrc)
       kernel-docs-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server for SAP Applications 15 SP2 (nosrc x86_64)
       kernel-preempt-5.3.18-150200.24.151.1
  o SUSE Linux Enterprise Server for SAP Applications 15 SP2 (x86_64)
       kernel-preempt-debugsource-5.3.18-150200.24.151.1
       kernel-preempt-debuginfo-5.3.18-150200.24.151.1
       kernel-preempt-devel-debuginfo-5.3.18-150200.24.151.1
       kernel-preempt-devel-5.3.18-150200.24.151.1
  o SUSE Enterprise Storage 7 (aarch64 nosrc x86_64)
       kernel-preempt-5.3.18-150200.24.151.1
       kernel-default-5.3.18-150200.24.151.1
  o SUSE Enterprise Storage 7 (aarch64 x86_64)
       reiserfs-kmp-default-debuginfo-5.3.18-150200.24.151.1
       kernel-default-base-5.3.18-150200.24.151.1.150200.9.73.1
       kernel-default-devel-debuginfo-5.3.18-150200.24.151.1
       kernel-preempt-devel-5.3.18-150200.24.151.1
       kernel-default-devel-5.3.18-150200.24.151.1
       kernel-default-debugsource-5.3.18-150200.24.151.1
       kernel-default-debuginfo-5.3.18-150200.24.151.1
       kernel-obs-build-debugsource-5.3.18-150200.24.151.1
       kernel-preempt-debuginfo-5.3.18-150200.24.151.1
       kernel-preempt-debugsource-5.3.18-150200.24.151.1
       kernel-preempt-devel-debuginfo-5.3.18-150200.24.151.1
       reiserfs-kmp-default-5.3.18-150200.24.151.1
       kernel-syms-5.3.18-150200.24.151.1
       kernel-obs-build-5.3.18-150200.24.151.1
  o SUSE Enterprise Storage 7 (noarch)
       kernel-devel-5.3.18-150200.24.151.1
       kernel-macros-5.3.18-150200.24.151.1
       kernel-source-5.3.18-150200.24.151.1
  o SUSE Enterprise Storage 7 (noarch nosrc)
       kernel-docs-5.3.18-150200.24.151.1

References:

  o https://www.suse.com/security/cve/CVE-2020-36691.html
  o https://www.suse.com/security/cve/CVE-2022-2196.html
  o https://www.suse.com/security/cve/CVE-2022-43945.html
  o https://www.suse.com/security/cve/CVE-2023-1611.html
  o https://www.suse.com/security/cve/CVE-2023-1670.html
  o https://www.suse.com/security/cve/CVE-2023-1838.html
  o https://www.suse.com/security/cve/CVE-2023-1855.html
  o https://www.suse.com/security/cve/CVE-2023-1872.html
  o https://www.suse.com/security/cve/CVE-2023-1989.html
  o https://www.suse.com/security/cve/CVE-2023-1990.html
  o https://www.suse.com/security/cve/CVE-2023-1998.html
  o https://www.suse.com/security/cve/CVE-2023-2008.html
  o https://www.suse.com/security/cve/CVE-2023-2162.html
  o https://www.suse.com/security/cve/CVE-2023-2176.html
  o https://www.suse.com/security/cve/CVE-2023-30772.html
  o https://bugzilla.suse.com/show_bug.cgiid=1202353
  o https://bugzilla.suse.com/show_bug.cgiid=1205128
  o https://bugzilla.suse.com/show_bug.cgiid=1206992
  o https://bugzilla.suse.com/show_bug.cgiid=1209613
  o https://bugzilla.suse.com/show_bug.cgiid=1209687
  o https://bugzilla.suse.com/show_bug.cgiid=1209777
  o https://bugzilla.suse.com/show_bug.cgiid=1209871
  o https://bugzilla.suse.com/show_bug.cgiid=1210202
  o https://bugzilla.suse.com/show_bug.cgiid=1210203
  o https://bugzilla.suse.com/show_bug.cgiid=1210301
  o https://bugzilla.suse.com/show_bug.cgiid=1210329
  o https://bugzilla.suse.com/show_bug.cgiid=1210336
  o https://bugzilla.suse.com/show_bug.cgiid=1210337
  o https://bugzilla.suse.com/show_bug.cgiid=1210414
  o https://bugzilla.suse.com/show_bug.cgiid=1210417
  o https://bugzilla.suse.com/show_bug.cgiid=1210453
  o https://bugzilla.suse.com/show_bug.cgiid=1210469
  o https://bugzilla.suse.com/show_bug.cgiid=1210506
  o https://bugzilla.suse.com/show_bug.cgiid=1210629
  o https://bugzilla.suse.com/show_bug.cgiid=1210647

- --------------------------END INCLUDED TEXT--------------------

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from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
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