Recommended update for tboot

Announcement ID: SUSE-SU-2017:3090-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2017-16837 ( SUSE ): 7.4 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-16837 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 12 SP2
  • SUSE Linux Enterprise High Performance Computing 12 SP3
  • SUSE Linux Enterprise Server 12 SP2
  • SUSE Linux Enterprise Server 12 SP3
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3

An update that solves one vulnerability and has one security fix can now be installed.

Description:

This update for tboot fixes the following issues:

Security issue fixed:

  • CVE-2017-16837: Certain function pointers in Trusted Boot (tboot) through 1.9.6 are notvalidated and can cause arbitrary code execution, which allows local users tooverwrite dynamic PCRs of Trusted Platform Module (TPM) by h (bsc#1068390)

Bug fixes:

  • Fixed failed trusted boot on some systems like Intel Xeon "Purley 8s" processors. The following error message showed: "TBOOT: wait-for-sipi loop timed-out". Booting continued but "TXT measured launch" was wrongly reported as FALSE. (bsc#1057555)

Patch Instructions:

To install this SUSE 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 High Performance Computing 12 SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1901=1
  • SUSE Linux Enterprise Server 12 SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1901=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1901=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1901=1
  • SUSE Linux Enterprise Server 12 SP3
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1901=1
  • SUSE Linux Enterprise High Performance Computing 12 SP3
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1901=1

Package List:

  • SUSE Linux Enterprise High Performance Computing 12 SP2 (x86_64)
    • tboot-debuginfo-20160518_1.9.4-7.5.1
    • tboot-debugsource-20160518_1.9.4-7.5.1
    • tboot-20160518_1.9.4-7.5.1
  • SUSE Linux Enterprise Server 12 SP2 (x86_64)
    • tboot-debuginfo-20160518_1.9.4-7.5.1
    • tboot-debugsource-20160518_1.9.4-7.5.1
    • tboot-20160518_1.9.4-7.5.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2 (x86_64)
    • tboot-debuginfo-20160518_1.9.4-7.5.1
    • tboot-debugsource-20160518_1.9.4-7.5.1
    • tboot-20160518_1.9.4-7.5.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3 (x86_64)
    • tboot-debuginfo-20160518_1.9.4-7.5.1
    • tboot-debugsource-20160518_1.9.4-7.5.1
    • tboot-20160518_1.9.4-7.5.1
  • SUSE Linux Enterprise Server 12 SP3 (x86_64)
    • tboot-debuginfo-20160518_1.9.4-7.5.1
    • tboot-debugsource-20160518_1.9.4-7.5.1
    • tboot-20160518_1.9.4-7.5.1
  • SUSE Linux Enterprise High Performance Computing 12 SP3 (x86_64)
    • tboot-debuginfo-20160518_1.9.4-7.5.1
    • tboot-debugsource-20160518_1.9.4-7.5.1
    • tboot-20160518_1.9.4-7.5.1

References: