SUSE Security Update: Security update for microcode_ctl
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Announcement ID:    SUSE-SU-2018:0009-1
Rating:             important
References:         #1068032 
Cross-References:   CVE-2017-5715
Affected Products:
                    SUSE Linux Enterprise Server 11-SP4
                    SUSE Linux Enterprise Server 11-SP3-LTSS
                    SUSE Linux Enterprise Point of Sale 11-SP3
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   An update that fixes one vulnerability is now available.

Description:



   This update for microcode_ctl fixes the following issues:

   Added microcode_amd_fam17h.bin (bsc#1068032 CVE-2017-5715)

   This new firmware disables branch prediction on AMD family 17h processor.

   Also the CPU microcode for Intel Haswell-X, Skylake-X and Broadwell-X
   chipsets was updated to report both branch prediction control via CPUID
   flag and ability to control branch prediction via an MSR register.

   This update is part of a mitigation for a branch predictor based
   information disclosure attack, and needs additional code in the Linux
   Kernel to be active (bsc#1068032 CVE-2017-5715)


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 11-SP4:

      zypper in -t patch slessp4-microcode_ctl-13390=1

   - SUSE Linux Enterprise Server 11-SP3-LTSS:

      zypper in -t patch slessp3-microcode_ctl-13390=1

   - SUSE Linux Enterprise Point of Sale 11-SP3:

      zypper in -t patch sleposp3-microcode_ctl-13390=1

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


Package List:

   - SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):

      microcode_ctl-1.17-102.83.6.1

   - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64):

      microcode_ctl-1.17-102.83.6.1

   - SUSE Linux Enterprise Point of Sale 11-SP3 (i586):

      microcode_ctl-1.17-102.83.6.1


References:

   https://www.suse.com/security/cve/CVE-2017-5715.html
   https://bugzilla.suse.com/1068032