ESB-2018.0600 - [SUSE] kernel: Denial of service - Existing account 2018-03-02

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0600
        SUSE Security Update: Security update for the Linux Kernel
                        (Live Patch 31 for SLE 12)
                               2 March 2018

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

Product:           kernel
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-15649 CVE-2017-6346 

Reference:         ASB-2017.0141
                   ESB-2017.3201
                   ESB-2017.3177
                   ESB-2017.1304
                   ESB-2017.1198
                   ESB-2017.1136
                   ESB-2017.0614

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20180562-1/

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   SUSE Security Update: Security update for the Linux Kernel (Live Patch 31 for SLE 12)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:0562-1
Rating:             important
References:         #1064392 
Cross-References:   CVE-2017-15649
Affected Products:
                    SUSE Linux Enterprise Server 12-LTSS
______________________________________________________________________________

   An update that fixes one vulnerability is now available.

Description:

   This update for the Linux Kernel 3.12.61-52_119 fixes several issues.

   The following security issue was fixed:

   - CVE-2017-15649: net/packet/af_packet.c in the Linux kernel allowed local
     users to gain privileges via crafted system calls that trigger
     mishandling of packet_fanout data structures, because of a race
     condition (involving fanout_add and packet_do_bind) that leads to a
     use-after-free, a different vulnerability than CVE-2017-6346
     (bsc#1064392)


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server 12-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-2018-373=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Server 12-LTSS (x86_64):

      kgraft-patch-3_12_61-52_119-default-2-2.1
      kgraft-patch-3_12_61-52_119-xen-2-2.1


References:

   https://www.suse.com/security/cve/CVE-2017-15649.html
   https://bugzilla.suse.com/1064392

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