Operating System:

[SUSE]

Published:

15 September 2022

Protect yourself against future threats.

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

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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

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