ESB-2018.2698 - [SUSE] linux kernel: Multiple vulnerabilities 2018-09-11

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2698
                   Security update for the Linux Kernel
                             11 September 2018

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

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

Product:           linux kernel
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Increased Privileges   -- Existing Account
                   Denial of Service      -- Existing Account
                   Access Privileged Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15471 CVE-2018-10853 

Reference:         ESB-2018.2436
                   ESB-2018.2097

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20182677-1/
   https://www.suse.com/support/update/announcement/2018/suse-su-20182678-1/

Comment: This bulletin contains two (2) SUSE security advisories.

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   SUSE Security Update: Security update for the Linux Kernel (Live Patch 1 for SLE 15)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:2677-1
Rating:             important
References:         #1105026 
Cross-References:   CVE-2018-15471
Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15
______________________________________________________________________________

   An update that fixes one vulnerability is now available.

Description:

   This update for the Linux Kernel 4.12.14-25_3 fixes one issue.

   The following security issue was fixed:

   - CVE-2018-15471: An issue was discovered in xenvif_set_hash_mapping in
     drivers/net/xen-netback/hash.c. The Linux netback driver allowed
     frontends to control mapping of requests to request queues. When
     processing a request to set or change this mapping, some input
     validation (e.g., for an integer overflow) was missing or flawed,
     leading to OOB access in hash handling. A malicious or buggy frontend
     may cause the (usually privileged) backend to make out of bounds memory
     accesses, potentially resulting in one or more of privilege escalation,
     Denial of Service (DoS), or information leaks (bsc#1105026).


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 Module for Live Patching 15:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2018-1868=1 SUSE-SLE-Module-Live-Patching-15-2018-1870=1



Package List:

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

      kernel-livepatch-4_12_14-23-default-3-7.3
      kernel-livepatch-4_12_14-23-default-debuginfo-3-7.3
      kernel-livepatch-4_12_14-25_3-default-3-2.1
      kernel-livepatch-4_12_14-25_3-default-debuginfo-3-2.1
      kernel-livepatch-SLE15_Update_0-debugsource-3-7.3


References:

   https://www.suse.com/security/cve/CVE-2018-15471.html
   https://bugzilla.suse.com/1105026


- --------------------------------------------------------------------------------


   SUSE Security Update: Security update for the Linux Kernel (Live Patch 2 for SLE 15)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:2678-1
Rating:             important
References:         #1097108 #1103203 #1105026 
Cross-References:   CVE-2018-10853 CVE-2018-15471
Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15
______________________________________________________________________________

   An update that solves two vulnerabilities and has one
   errata is now available.

Description:

   This update for the Linux Kernel 4.12.14-25_6 fixes several issues.

   The following security issues were fixed:

   - CVE-2018-15471: An issue was discovered in xenvif_set_hash_mapping in
     drivers/net/xen-netback/hash.c. The Linux netback driver allowed
     frontends to control mapping of requests to request queues. When
     processing a request to set or change this mapping, some input
     validation (e.g., for an integer overflow) was missing or flawed,
     leading to OOB access in hash handling. A malicious or buggy frontend
     may cause the (usually privileged) backend to make out of bounds memory
     accesses, potentially resulting in one or more of privilege escalation,
     Denial of Service (DoS), or information leaks (bsc#1105026).
   - CVE-2018-10853: A KVM guest userspace to guest kernel write was fixed,
     which could be used by guest users to crash the guest kernel
     (bsc#1097108).


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 Module for Live Patching 15:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2018-1869=1



Package List:

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

      kernel-livepatch-4_12_14-25_6-default-3-2.1
      kernel-livepatch-4_12_14-25_6-default-debuginfo-3-2.1


References:

   https://www.suse.com/security/cve/CVE-2018-10853.html
   https://www.suse.com/security/cve/CVE-2018-15471.html
   https://bugzilla.suse.com/1097108
   https://bugzilla.suse.com/1103203
   https://bugzilla.suse.com/1105026

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

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