Security update for microcode_ctl

SUSE Security Update: Security update for microcode_ctl
Announcement ID: SUSE-SU-2018:0009-1
Rating: important
References: #1068032
Affected Products:
  • SUSE Linux Enterprise Server 11-SP4
  • SUSE Linux Enterprise Server 11-SP3-LTSS
  • SUSE Linux Enterprise Point of Sale 11-SP3
    		•

    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: