SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2022:14905-1
Rating:             important
References:         #1171420 #1179599 #1190025 #1191580 #1193157 
                    #1193669 #1193867 #1194272 #1195109 #1195543 
                    #1195908 #1196079 #1196612 
Cross-References:   CVE-2019-0136 CVE-2020-12770 CVE-2020-27820
                    CVE-2021-3753 CVE-2021-4155 CVE-2021-45095
                    CVE-2022-0001 CVE-2022-0002 CVE-2022-0492
                    CVE-2022-0617
CVSS scores:
                    CVE-2019-0136 (NVD) : 7.4 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
                    CVE-2019-0136 (SUSE): 7.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
                    CVE-2020-12770 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-12770 (SUSE): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
                    CVE-2020-27820 (SUSE): 3.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:L
                    CVE-2021-3753 (NVD) : 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
                    CVE-2021-3753 (SUSE): 2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
                    CVE-2021-4155 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
                    CVE-2021-45095 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
                    CVE-2021-45095 (SUSE): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
                    CVE-2022-0001 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2022-0002 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2022-0492 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-0617 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-0617 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products:
                    SUSE Linux Enterprise Debuginfo 11-SP4
                    SUSE Linux Enterprise Server 11-EXTRA
                    SUSE Linux Enterprise Server 11-SP4-LTSS
______________________________________________________________________________

   An update that solves 10 vulnerabilities and has three
   fixes is now available.

Description:

   The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various
   security and bugfixes.


   Transient execution side-channel attacks attacking the Branch History
   Buffer (BHB), named "Branch Target Injection" and "Intra-Mode Branch
   History Injection" are now mitigated.

   The following security bugs were fixed:

   - CVE-2022-0001: Fixed Branch History Injection vulnerability
     (bsc#1191580).
   - CVE-2022-0002: Fixed Intra-Mode Branch Target Injection vulnerability
     (bsc#1191580).
   - CVE-2020-12770: Fixed sg_remove_request call in a certain failure cases
     (bsc#1171420).
   - CVE-2022-0617: Fixed a null pointer dereference in UDF file system
     functionality. A local user could crash the system by triggering
     udf_file_write_iter() via a malicious UDF image. (bsc#1196079)
   - CVE-2022-0492: Fixed a privilege escalation related to cgroups v1
     release_agent feature, which allowed bypassing namespace isolation
     unexpectedly (bsc#1195543).
   - CVE-2021-45095: Fixed refcount leak in pep_sock_accept in
     net/phonet/pep.c (bsc#1193867).
   - CVE-2021-4155: Fixed a data leak flaw that allows a local attacker to
     leak data on the XFS filesystem (bsc#1194272).
   - CVE-2020-27820: Fixed a vulnerability where a use-after-frees in
     nouveau's postclose() handler could happen if removing device
     (bsc#1179599).
   - CVE-2019-0136: Fixed an insufficient access control which allow an
     unauthenticated user to execute a denial of service (bsc#1193157).
   - CVE-2021-3753: Fixed race out-of-bounds in virtual terminal handling
     (bsc#1190025).

   The following non-security bugs were fixed:

   - kprobes: Limit max data_size of the kretprobe instances (bsc#1193669).
   - md: check the return of mddev_find() (bsc#1195109).


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 11-SP4-LTSS:

      zypper in -t patch slessp4-kernel-14905=1

   - SUSE Linux Enterprise Server 11-EXTRA:

      zypper in -t patch slexsp3-kernel-14905=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-kernel-14905=1



Package List:

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):

      kernel-default-3.0.101-108.135.1
      kernel-default-base-3.0.101-108.135.1
      kernel-default-devel-3.0.101-108.135.1
      kernel-source-3.0.101-108.135.1
      kernel-syms-3.0.101-108.135.1
      kernel-trace-3.0.101-108.135.1
      kernel-trace-base-3.0.101-108.135.1
      kernel-trace-devel-3.0.101-108.135.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 x86_64):

      kernel-ec2-3.0.101-108.135.1
      kernel-ec2-base-3.0.101-108.135.1
      kernel-ec2-devel-3.0.101-108.135.1
      kernel-xen-3.0.101-108.135.1
      kernel-xen-base-3.0.101-108.135.1
      kernel-xen-devel-3.0.101-108.135.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (ppc64):

      kernel-bigmem-3.0.101-108.135.1
      kernel-bigmem-base-3.0.101-108.135.1
      kernel-bigmem-devel-3.0.101-108.135.1
      kernel-ppc64-3.0.101-108.135.1
      kernel-ppc64-base-3.0.101-108.135.1
      kernel-ppc64-devel-3.0.101-108.135.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (s390x):

      kernel-default-man-3.0.101-108.135.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586):

      kernel-pae-3.0.101-108.135.1
      kernel-pae-base-3.0.101-108.135.1
      kernel-pae-devel-3.0.101-108.135.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586 ia64 ppc64 s390x x86_64):

      kernel-default-extra-3.0.101-108.135.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586 x86_64):

      kernel-xen-extra-3.0.101-108.135.1

   - SUSE Linux Enterprise Server 11-EXTRA (x86_64):

      kernel-trace-extra-3.0.101-108.135.1

   - SUSE Linux Enterprise Server 11-EXTRA (ppc64):

      kernel-ppc64-extra-3.0.101-108.135.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586):

      kernel-pae-extra-3.0.101-108.135.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):

      kernel-default-debuginfo-3.0.101-108.135.1
      kernel-default-debugsource-3.0.101-108.135.1
      kernel-trace-debuginfo-3.0.101-108.135.1
      kernel-trace-debugsource-3.0.101-108.135.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 s390x x86_64):

      kernel-default-devel-debuginfo-3.0.101-108.135.1
      kernel-trace-devel-debuginfo-3.0.101-108.135.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

      kernel-ec2-debuginfo-3.0.101-108.135.1
      kernel-ec2-debugsource-3.0.101-108.135.1
      kernel-xen-debuginfo-3.0.101-108.135.1
      kernel-xen-debugsource-3.0.101-108.135.1
      kernel-xen-devel-debuginfo-3.0.101-108.135.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (ppc64):

      kernel-bigmem-debuginfo-3.0.101-108.135.1
      kernel-bigmem-debugsource-3.0.101-108.135.1
      kernel-ppc64-debuginfo-3.0.101-108.135.1
      kernel-ppc64-debugsource-3.0.101-108.135.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586):

      kernel-pae-debuginfo-3.0.101-108.135.1
      kernel-pae-debugsource-3.0.101-108.135.1
      kernel-pae-devel-debuginfo-3.0.101-108.135.1


References:

   https://www.suse.com/security/cve/CVE-2019-0136.html
   https://www.suse.com/security/cve/CVE-2020-12770.html
   https://www.suse.com/security/cve/CVE-2020-27820.html
   https://www.suse.com/security/cve/CVE-2021-3753.html
   https://www.suse.com/security/cve/CVE-2021-4155.html
   https://www.suse.com/security/cve/CVE-2021-45095.html
   https://www.suse.com/security/cve/CVE-2022-0001.html
   https://www.suse.com/security/cve/CVE-2022-0002.html
   https://www.suse.com/security/cve/CVE-2022-0492.html
   https://www.suse.com/security/cve/CVE-2022-0617.html
   https://bugzilla.suse.com/1171420
   https://bugzilla.suse.com/1179599
   https://bugzilla.suse.com/1190025
   https://bugzilla.suse.com/1191580
   https://bugzilla.suse.com/1193157
   https://bugzilla.suse.com/1193669
   https://bugzilla.suse.com/1193867
   https://bugzilla.suse.com/1194272
   https://bugzilla.suse.com/1195109
   https://bugzilla.suse.com/1195543
   https://bugzilla.suse.com/1195908
   https://bugzilla.suse.com/1196079
   https://bugzilla.suse.com/1196612