-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

                               ESB-2022.4574
                   Security update for the Linux Kernel
                             15 September 2022

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

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

Product:           Linux Kernel
Publisher:         SUSE
Operating System:  SUSE
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-39188 CVE-2022-36879 CVE-2022-26373
                   CVE-2022-21385 CVE-2022-20369 CVE-2022-20368
                   CVE-2022-3028 CVE-2022-2991 CVE-2022-2588
                   CVE-2020-36516 CVE-2019-3900 

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2022/suse-su-20223263-1

Comment: CVSS (Max):  8.2 CVE-2022-2991 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
         CVSS Source: SUSE
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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

SUSE Security Update: Security update for the Linux Kernel

______________________________________________________________________________

Announcement ID:   SUSE-SU-2022:3263-1
Rating:            important
References:        #1133374 #1191881 #1196616 #1201420 #1201726 #1201948
                   #1202096 #1202346 #1202347 #1202393 #1202897 #1202898
                   #1203098 #1203107
Cross-References:  CVE-2019-3900 CVE-2020-36516 CVE-2022-20368 CVE-2022-20369
                   CVE-2022-21385 CVE-2022-2588 CVE-2022-26373 CVE-2022-2991
                   CVE-2022-3028 CVE-2022-36879 CVE-2022-39188
Affected Products:
                   SUSE Linux Enterprise Server 12-SP3-BCL
______________________________________________________________________________

An update that solves 11 vulnerabilities and has three fixes is now available.

Description:


The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security
and bugfixes.
The following security bugs were fixed:

  o CVE-2022-39188: Fixed race condition in include/asm-generic/tlb.h where a
    device driver can free a page while it still has stale TLB entries (bnc#
    1203107).
  o CVE-2022-36879: Fixed an issue in xfrm_expand_policies in net/xfrm/
    xfrm_policy.c where a refcount could be dropped twice (bnc#1201948).
  o CVE-2022-3028: Fixed race condition that was found in the IP framework for
    transforming packets (XFRM subsystem) (bnc#1202898).
  o CVE-2022-2991: Fixed an heap-based overflow in the lightnvm implemenation
    (bsc#1201420).
  o CVE-2022-26373: Fixed non-transparent sharing of return predictor targets
    between contexts in some Intel Processors (bnc#1201726).
  o CVE-2022-2588: Fixed use-after-free in cls_route (bsc#1202096).
  o CVE-2022-21385: Fixed a flaw in net_rds_alloc_sgs() that allowed
    unprivileged local users to crash the machine (bnc#1202897).
  o CVE-2022-20369: Fixed out of bounds write in v4l2_m2m_querybuf of
    v4l2-mem2mem.c (bnc#1202347).
  o CVE-2022-20368: Fixed slab-out-of-bounds access in packet_recvmsg() (bsc#
    1202346).
  o CVE-2020-36516: Fixed an issue in the mixed IPID assignment method where an
    attacker was able to inject data into or terminate a victim's TCP session
    (bnc#1196616).
  o CVE-2019-3900: Fixed infinite loop the vhost_net kernel module that could
    result in a DoS scenario (bnc#1133374).


The following non-security bugs were fixed:

  o net_sched: cls_route: Disallowed handle of 0 (bsc#1202393).
  o mm, rmap: Fixed anon_vma->degree ambiguity leading to double-reuse (bsc#
    1203098).
  o lightnvm: Removed lightnvm implemenation (bsc#1191881).

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:

  o SUSE Linux Enterprise Server 12-SP3-BCL:
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2022-3263=1

Package List:

  o SUSE Linux Enterprise Server 12-SP3-BCL (noarch):
       kernel-devel-4.4.180-94.174.1
       kernel-macros-4.4.180-94.174.1
       kernel-source-4.4.180-94.174.1
  o SUSE Linux Enterprise Server 12-SP3-BCL (x86_64):
       kernel-default-4.4.180-94.174.1
       kernel-default-base-4.4.180-94.174.1
       kernel-default-base-debuginfo-4.4.180-94.174.1
       kernel-default-debuginfo-4.4.180-94.174.1
       kernel-default-debugsource-4.4.180-94.174.1
       kernel-default-devel-4.4.180-94.174.1
       kernel-syms-4.4.180-94.174.1


References:

  o https://www.suse.com/security/cve/CVE-2019-3900.html
  o https://www.suse.com/security/cve/CVE-2020-36516.html
  o https://www.suse.com/security/cve/CVE-2022-20368.html
  o https://www.suse.com/security/cve/CVE-2022-20369.html
  o https://www.suse.com/security/cve/CVE-2022-21385.html
  o https://www.suse.com/security/cve/CVE-2022-2588.html
  o https://www.suse.com/security/cve/CVE-2022-26373.html
  o https://www.suse.com/security/cve/CVE-2022-2991.html
  o https://www.suse.com/security/cve/CVE-2022-3028.html
  o https://www.suse.com/security/cve/CVE-2022-36879.html
  o https://www.suse.com/security/cve/CVE-2022-39188.html
  o https://bugzilla.suse.com/1133374
  o https://bugzilla.suse.com/1191881
  o https://bugzilla.suse.com/1196616
  o https://bugzilla.suse.com/1201420
  o https://bugzilla.suse.com/1201726
  o https://bugzilla.suse.com/1201948
  o https://bugzilla.suse.com/1202096
  o https://bugzilla.suse.com/1202346
  o https://bugzilla.suse.com/1202347
  o https://bugzilla.suse.com/1202393
  o https://bugzilla.suse.com/1202897
  o https://bugzilla.suse.com/1202898
  o https://bugzilla.suse.com/1203098
  o https://bugzilla.suse.com/1203107

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

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
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.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: https://auscert.org.au/gpg-key/
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=aVNj
-----END PGP SIGNATURE-----