Security update for puppet

Announcement ID: SUSE-SU-2017:2113-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2017-2295 ( SUSE ): 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-2295 ( NVD ): 8.2 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Affected Products:
  • Advanced Systems Management Module 12
  • SUSE Linux Enterprise Desktop 12 SP2
  • SUSE Linux Enterprise Desktop 12 SP3
  • SUSE Linux Enterprise High Performance Computing 12 SP2
  • SUSE Linux Enterprise High Performance Computing 12 SP3
  • SUSE Linux Enterprise High Performance Computing 12 SP4
  • SUSE Linux Enterprise High Performance Computing 12 SP5
  • SUSE Linux Enterprise Server 12
  • SUSE Linux Enterprise Server 12 SP1
  • SUSE Linux Enterprise Server 12 SP2
  • SUSE Linux Enterprise Server 12 SP3
  • SUSE Linux Enterprise Server 12 SP4
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server for SAP Applications 12
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves one vulnerability can now be installed.

Description:

This update for puppet fixes the following issues:

Security issue fixed: - CVE-2017-2295: Possible code execution vulnerability where an attacker could force YAML deserialization in an unsafe manner. In default, this update breaks a backwards compatibility with Puppet agents older than 3.2.2 as the SLE12 master doesn't support other fact formats than pson in default anymore. In order to allow users to continue using their SLE12 master/SLE11 agents setup and fix CVE-2017-2295 for the others, a new puppet master boolean option "dangerous_fact_formats" was added. When it's set to true it enables using dangerous fact formats (e.g. YAML). When it's set to false, only PSON fact format is accepted. (bsc#1040151)

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 Desktop 12 SP2
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-1310=1
  • SUSE Linux Enterprise Desktop 12 SP3
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2017-1310=1
  • Advanced Systems Management Module 12
    zypper in -t patch SUSE-SLE-Module-Adv-Systems-Management-12-2017-1310=1

Package List:

  • SUSE Linux Enterprise Desktop 12 SP2 (x86_64)
    • puppet-3.8.5-15.3.3
  • SUSE Linux Enterprise Desktop 12 SP3 (x86_64)
    • puppet-3.8.5-15.3.3
  • Advanced Systems Management Module 12 (ppc64le s390x x86_64)
    • puppet-server-3.8.5-15.3.3
    • puppet-3.8.5-15.3.3

References: