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

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