SUSE: 2022:2723-1 important: the Linux Kernel | LinuxSecurity.com

Advisories


   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2022:2723-1
Rating:             important
References:         #1195775 #1195926 #1198484 #1198829 #1200442 
                    #1200598 #1200910 #1201050 #1201429 #1201635 
                    #1201636 #1201926 #1201930 #1201940 
Cross-References:   CVE-2020-36557 CVE-2020-36558 CVE-2021-26341
                    CVE-2021-33655 CVE-2021-33656 CVE-2022-1462
                    CVE-2022-20166 CVE-2022-36946
CVSS scores:
                    CVE-2020-36557 (NVD) : 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2020-36557 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-36558 (NVD) : 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2020-36558 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-26341 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2021-26341 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2021-33655 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33655 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33656 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33656 (SUSE): 6.3 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
                    CVE-2022-1462 (NVD) : 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
                    CVE-2022-1462 (SUSE): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
                    CVE-2022-20166 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-20166 (SUSE): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
                    CVE-2022-36946 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-36946 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:
                    SUSE Linux Enterprise High Availability 15
                    SUSE Linux Enterprise High Performance Computing 15
                    SUSE Linux Enterprise High Performance Computing 15-ESPOS
                    SUSE Linux Enterprise High Performance Computing 15-LTSS
                    SUSE Linux Enterprise Module for Live Patching 15
                    SUSE Linux Enterprise Server 15
                    SUSE Linux Enterprise Server 15-LTSS
                    SUSE Linux Enterprise Server for SAP 15
                    SUSE Linux Enterprise Server for SAP Applications 15
______________________________________________________________________________

   An update that solves 8 vulnerabilities and has 6 fixes is
   now available.

Description:


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

   The following security bugs were fixed:

   - CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl
     and closing/opening of ttys that could lead to a use-after-free
     (bnc#1201429).
   - CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could
     lead to a NULL pointer dereference and general protection fault
     (bnc#1200910).
   - CVE-2021-26341: Some AMD CPUs may transiently execute beyond
     unconditional direct branches, which may potentially result in data
     leakage (bsc#1201050).
   - CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO
     (bnc#1201635).
   - CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT
     (bnc#1201636).
   - CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe
     subsystem (bnc#1198829).
   - CVE-2022-20166: Fixed possible out of bounds write due to sprintf
     unsafety that could cause local escalation of privilege (bnc#1200598).
   - CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that
     could lead to remote DoS (bnc#1201940).

   The following non-security bugs were fixed:

   - Add missing recommends of kernel-install-tools to kernel-source-vanilla
     (bsc#1200442)
   - cifs: On cifs_reconnect, resolve the hostname again (bsc#1201926).
   - cifs: Simplify reconnect code when dfs upcall is enabled (bsc#1201926).
   - cifs: To match file servers, make sure the server hostname matches
     (bsc#1201926).
   - cifs: fix memory leak of smb3_fs_context_dup::server_hostname
     (bsc#1201926).
   - cifs: fix potential use-after-free in cifs_echo_request() (bsc#1201926).
   - cifs: set a minimum of 120s for next dns resolution (bsc#1201926).
   - cifs: use the expiry output of dns_query to schedule next resolution
     (bsc#1201926).
   - kernel-binary.spec: Support radio selection for debuginfo. To disable
     debuginfo on 5.18 kernel a radio selection needs to be switched to a
     different selection. This requires disabling the currently active option
     and selecting NONE as debuginfo type.
   - kernel-binary.spec: check s390x vmlinux location As a side effect of
     mainline commit edd4a8667355 ("s390/boot: get rid of startup archive"),
     vmlinux on s390x moved from "compressed" subdirectory directly into
     arch/s390/boot. As the specfile is shared among branches, check both
     locations and let objcopy use one that exists.
   - kvm: emulate: Fix SETcc emulation function offsets with SLS
     (bsc#1201930).
   - kvm: emulate: do not adjust size of fastop and setcc subroutines
     (bsc#1201930).
   - pahole 1.22 required for full BTF features. also recommend pahole for
     kernel-source to make the kernel buildable with standard config
   - rpm/*.spec.in: remove backtick usage
   - rpm/constraints.in: skip SLOW_DISK workers for kernel-source
   - rpm/kernel-obs-build.spec.in: Also depend on dracut-systemd (bsc#1195775)
   - rpm/kernel-obs-build.spec.in: add systemd-initrd and terminfo dracut
     module (bsc#1195775)
   - rpm/kernel-obs-build.spec.in: use default dracut modules (bsc#1195926,
     bsc#1198484).


Special Instructions and Notes:

   Please reboot the system after installing this update.

Patch Instructions:

   To install this SUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server for SAP 15:

      zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2022-2723=1

   - SUSE Linux Enterprise Server 15-LTSS:

      zypper in -t patch SUSE-SLE-Product-SLES-15-2022-2723=1

   - SUSE Linux Enterprise Module for Live Patching 15:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2022-2723=1

      Please note that this is the initial kernel livepatch without fixes
      itself, this livepatch package is later updated by seperate standalone
      livepatch updates.

   - SUSE Linux Enterprise High Performance Computing 15-LTSS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2022-2723=1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2022-2723=1

   - SUSE Linux Enterprise High Availability 15:

      zypper in -t patch SUSE-SLE-Product-HA-15-2022-2723=1



Package List:

   - SUSE Linux Enterprise Server for SAP 15 (ppc64le x86_64):

      kernel-default-4.12.14-150000.150.98.1
      kernel-default-base-4.12.14-150000.150.98.1
      kernel-default-debuginfo-4.12.14-150000.150.98.1
      kernel-default-debugsource-4.12.14-150000.150.98.1
      kernel-default-devel-4.12.14-150000.150.98.1
      kernel-default-devel-debuginfo-4.12.14-150000.150.98.1
      kernel-obs-build-4.12.14-150000.150.98.1
      kernel-obs-build-debugsource-4.12.14-150000.150.98.1
      kernel-syms-4.12.14-150000.150.98.1
      kernel-vanilla-base-4.12.14-150000.150.98.1
      kernel-vanilla-base-debuginfo-4.12.14-150000.150.98.1
      kernel-vanilla-debuginfo-4.12.14-150000.150.98.1
      kernel-vanilla-debugsource-4.12.14-150000.150.98.1
      reiserfs-kmp-default-4.12.14-150000.150.98.1
      reiserfs-kmp-default-debuginfo-4.12.14-150000.150.98.1

   - SUSE Linux Enterprise Server for SAP 15 (noarch):

      kernel-devel-4.12.14-150000.150.98.1
      kernel-docs-4.12.14-150000.150.98.2
      kernel-macros-4.12.14-150000.150.98.1
      kernel-source-4.12.14-150000.150.98.1

   - SUSE Linux Enterprise Server 15-LTSS (aarch64 s390x):

      kernel-default-4.12.14-150000.150.98.1
      kernel-default-base-4.12.14-150000.150.98.1
      kernel-default-debuginfo-4.12.14-150000.150.98.1
      kernel-default-debugsource-4.12.14-150000.150.98.1
      kernel-default-devel-4.12.14-150000.150.98.1
      kernel-default-devel-debuginfo-4.12.14-150000.150.98.1
      kernel-obs-build-4.12.14-150000.150.98.1
      kernel-obs-build-debugsource-4.12.14-150000.150.98.1
      kernel-syms-4.12.14-150000.150.98.1
      kernel-vanilla-base-4.12.14-150000.150.98.1
      kernel-vanilla-base-debuginfo-4.12.14-150000.150.98.1
      kernel-vanilla-debuginfo-4.12.14-150000.150.98.1
      kernel-vanilla-debugsource-4.12.14-150000.150.98.1
      reiserfs-kmp-default-4.12.14-150000.150.98.1
      reiserfs-kmp-default-debuginfo-4.12.14-150000.150.98.1

   - SUSE Linux Enterprise Server 15-LTSS (noarch):

      kernel-devel-4.12.14-150000.150.98.1
      kernel-docs-4.12.14-150000.150.98.2
      kernel-macros-4.12.14-150000.150.98.1
      kernel-source-4.12.14-150000.150.98.1

   - SUSE Linux Enterprise Server 15-LTSS (s390x):

      kernel-default-man-4.12.14-150000.150.98.1
      kernel-zfcpdump-debuginfo-4.12.14-150000.150.98.1
      kernel-zfcpdump-debugsource-4.12.14-150000.150.98.1

   - SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):

      kernel-default-debuginfo-4.12.14-150000.150.98.1
      kernel-default-debugsource-4.12.14-150000.150.98.1
      kernel-default-livepatch-4.12.14-150000.150.98.1
      kernel-livepatch-4_12_14-150000_150_98-default-1-150000.1.3.1
      kernel-livepatch-4_12_14-150000_150_98-default-debuginfo-1-150000.1.3.1

   - SUSE Linux Enterprise High Performance Computing 15-LTSS (aarch64 x86_64):

      kernel-default-4.12.14-150000.150.98.1
      kernel-default-base-4.12.14-150000.150.98.1
      kernel-default-debuginfo-4.12.14-150000.150.98.1
      kernel-default-debugsource-4.12.14-150000.150.98.1
      kernel-default-devel-4.12.14-150000.150.98.1
      kernel-default-devel-debuginfo-4.12.14-150000.150.98.1
      kernel-obs-build-4.12.14-150000.150.98.1
      kernel-obs-build-debugsource-4.12.14-150000.150.98.1
      kernel-syms-4.12.14-150000.150.98.1
      kernel-vanilla-base-4.12.14-150000.150.98.1
      kernel-vanilla-base-debuginfo-4.12.14-150000.150.98.1
      kernel-vanilla-debuginfo-4.12.14-150000.150.98.1
      kernel-vanilla-debugsource-4.12.14-150000.150.98.1

   - SUSE Linux Enterprise High Performance Computing 15-LTSS (noarch):

      kernel-devel-4.12.14-150000.150.98.1
      kernel-docs-4.12.14-150000.150.98.2
      kernel-macros-4.12.14-150000.150.98.1
      kernel-source-4.12.14-150000.150.98.1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS (aarch64 x86_64):

      kernel-default-4.12.14-150000.150.98.1
      kernel-default-base-4.12.14-150000.150.98.1
      kernel-default-debuginfo-4.12.14-150000.150.98.1
      kernel-default-debugsource-4.12.14-150000.150.98.1
      kernel-default-devel-4.12.14-150000.150.98.1
      kernel-default-devel-debuginfo-4.12.14-150000.150.98.1
      kernel-obs-build-4.12.14-150000.150.98.1
      kernel-obs-build-debugsource-4.12.14-150000.150.98.1
      kernel-syms-4.12.14-150000.150.98.1
      kernel-vanilla-base-4.12.14-150000.150.98.1
      kernel-vanilla-base-debuginfo-4.12.14-150000.150.98.1
      kernel-vanilla-debuginfo-4.12.14-150000.150.98.1
      kernel-vanilla-debugsource-4.12.14-150000.150.98.1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS (noarch):

      kernel-devel-4.12.14-150000.150.98.1
      kernel-docs-4.12.14-150000.150.98.2
      kernel-macros-4.12.14-150000.150.98.1
      kernel-source-4.12.14-150000.150.98.1

   - SUSE Linux Enterprise High Availability 15 (aarch64 ppc64le s390x x86_64):

      cluster-md-kmp-default-4.12.14-150000.150.98.1
      cluster-md-kmp-default-debuginfo-4.12.14-150000.150.98.1
      dlm-kmp-default-4.12.14-150000.150.98.1
      dlm-kmp-default-debuginfo-4.12.14-150000.150.98.1
      gfs2-kmp-default-4.12.14-150000.150.98.1
      gfs2-kmp-default-debuginfo-4.12.14-150000.150.98.1
      kernel-default-debuginfo-4.12.14-150000.150.98.1
      kernel-default-debugsource-4.12.14-150000.150.98.1
      ocfs2-kmp-default-4.12.14-150000.150.98.1
      ocfs2-kmp-default-debuginfo-4.12.14-150000.150.98.1


References:

   https://www.suse.com/security/cve/CVE-2020-36557.html
   https://www.suse.com/security/cve/CVE-2020-36558.html
   https://www.suse.com/security/cve/CVE-2021-26341.html
   https://www.suse.com/security/cve/CVE-2021-33655.html
   https://www.suse.com/security/cve/CVE-2021-33656.html
   https://www.suse.com/security/cve/CVE-2022-1462.html
   https://www.suse.com/security/cve/CVE-2022-20166.html
   https://www.suse.com/security/cve/CVE-2022-36946.html
   https://bugzilla.suse.com/1195775
   https://bugzilla.suse.com/1195926
   https://bugzilla.suse.com/1198484
   https://bugzilla.suse.com/1198829
   https://bugzilla.suse.com/1200442
   https://bugzilla.suse.com/1200598
   https://bugzilla.suse.com/1200910
   https://bugzilla.suse.com/1201050
   https://bugzilla.suse.com/1201429
   https://bugzilla.suse.com/1201635
   https://bugzilla.suse.com/1201636
   https://bugzilla.suse.com/1201926
   https://bugzilla.suse.com/1201930
   https://bugzilla.suse.com/1201940

SUSE: 2022:2723-1 important: the Linux Kernel

August 9, 2022
An update that solves 8 vulnerabilities and has 6 fixes is now available

Summary

The SUSE Linux Enterprise 15 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys that could lead to a use-after-free (bnc#1201429). - CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could lead to a NULL pointer dereference and general protection fault (bnc#1200910). - CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050). - CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635). - CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT (bnc#1201636). - CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829). - CVE-2022-20166: Fixed possible out of bounds write due to sprintf unsafety that could cause local escalation of privilege (bnc#1200598). - CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that could lead to remote DoS (bnc#1201940). The following non-security bugs were fixed: - Add missing recommends of kernel-install-tools to kernel-source-vanilla (bsc#1200442) - cifs: On cifs_reconnect, resolve the hostname again (bsc#1201926). - cifs: Simplify reconnect code when dfs upcall is enabled (bsc#1201926). - cifs: To match file servers, make sure the server hostname matches (bsc#1201926). - cifs: fix memory leak of smb3_fs_context_dup::server_hostname (bsc#1201926). - cifs: fix potential use-after-free in cifs_echo_request() (bsc#1201926). - cifs: set a minimum of 120s for next dns resolution (bsc#1201926). - cifs: use the expiry output of dns_query to schedule next resolution (bsc#1201926). - kernel-binary.spec: Support radio selection for debuginfo. To disable debuginfo on 5.18 kernel a radio selection needs to be switched to a different selection. This requires disabling the currently active option and selecting NONE as debuginfo type. - kernel-binary.spec: check s390x vmlinux location As a side effect of mainline commit edd4a8667355 ("s390/boot: get rid of startup archive"), vmlinux on s390x moved from "compressed" subdirectory directly into arch/s390/boot. As the specfile is shared among branches, check both locations and let objcopy use one that exists. - kvm: emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930). - kvm: emulate: do not adjust size of fastop and setcc subroutines (bsc#1201930). - pahole 1.22 required for full BTF features. also recommend pahole for kernel-source to make the kernel buildable with standard config - rpm/*.spec.in: remove backtick usage - rpm/constraints.in: skip SLOW_DISK workers for kernel-source - rpm/kernel-obs-build.spec.in: Also depend on dracut-systemd (bsc#1195775) - rpm/kernel-obs-build.spec.in: add systemd-initrd and terminfo dracut module (bsc#1195775) - rpm/kernel-obs-build.spec.in: use default dracut modules (bsc#1195926, bsc#1198484).

References

#1195775 #1195926 #1198484 #1198829 #1200442

#1200598 #1200910 #1201050 #1201429 #1201635

#1201636 #1201926 #1201930 #1201940

Cross- CVE-2020-36557 CVE-2020-36558 CVE-2021-26341

CVE-2021-33655 CVE-2021-33656 CVE-2022-1462

CVE-2022-20166 CVE-2022-36946

CVSS scores:

CVE-2020-36557 (NVD) : 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2020-36557 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2020-36558 (NVD) : 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2020-36558 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-26341 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2021-26341 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2021-33655 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33655 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33656 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33656 (SUSE): 6.3 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H

CVE-2022-1462 (NVD) : 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

CVE-2022-1462 (SUSE): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

CVE-2022-20166 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVE-2022-20166 (SUSE): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

CVE-2022-36946 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2022-36946 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

SUSE Linux Enterprise High Availability 15

SUSE Linux Enterprise High Performance Computing 15

SUSE Linux Enterprise High Performance Computing 15-ESPOS

SUSE Linux Enterprise High Performance Computing 15-LTSS

SUSE Linux Enterprise Module for Live Patching 15

SUSE Linux Enterprise Server 15

SUSE Linux Enterprise Server 15-LTSS

SUSE Linux Enterprise Server for SAP 15

SUSE Linux Enterprise Server for SAP Applications 15

https://www.suse.com/security/cve/CVE-2020-36557.html

https://www.suse.com/security/cve/CVE-2020-36558.html

https://www.suse.com/security/cve/CVE-2021-26341.html

https://www.suse.com/security/cve/CVE-2021-33655.html

https://www.suse.com/security/cve/CVE-2021-33656.html

https://www.suse.com/security/cve/CVE-2022-1462.html

https://www.suse.com/security/cve/CVE-2022-20166.html

https://www.suse.com/security/cve/CVE-2022-36946.html

https://bugzilla.suse.com/1195775

https://bugzilla.suse.com/1195926

https://bugzilla.suse.com/1198484

https://bugzilla.suse.com/1198829

https://bugzilla.suse.com/1200442

https://bugzilla.suse.com/1200598

https://bugzilla.suse.com/1200910

https://bugzilla.suse.com/1201050

https://bugzilla.suse.com/1201429

https://bugzilla.suse.com/1201635

https://bugzilla.suse.com/1201636

https://bugzilla.suse.com/1201926

https://bugzilla.suse.com/1201930

https://bugzilla.suse.com/1201940

Severity
Announcement ID: SUSE-SU-2022:2723-1
Rating: important

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