Security update for bash

Announcement ID: SUSE-SU-2017:0302-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2016-0634 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2016-7543 ( NVD ): 8.4 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SLES for SAP Applications 11-SP4
  • SUSE Linux Enterprise Server 11 SP4
  • SUSE Linux Enterprise Software Development Kit 11 SP4

An update that solves two vulnerabilities and has two security fixes can now be installed.

Description:

This update for bash fixes the following issues:

  • CVE-2016-7543: Local attackers could have executed arbitrary commands via specially crafted SHELLOPTS+PS4 variables. (bsc#1001299)
  • CVE-2016-0634: Malicious hostnames could have allowed arbitrary command execution when $HOSTNAME was expanded in the prompt. (bsc#1000396)

The following bugs were fixed:

  • bsc#971410: Scripts could terminate unexpectedly due to mishandled recursive traps.
  • bsc#959755: Clarify that the files /etc/profile as well as /etc/bash.bashrc may source other files as well even if the bash does not.

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 Software Development Kit 11 SP4
    zypper in -t patch sdksp4-bash-12959=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch slessp4-bash-12959=1
  • SLES for SAP Applications 11-SP4
    zypper in -t patch slessp4-bash-12959=1

Package List:

  • SUSE Linux Enterprise Software Development Kit 11 SP4 (x86_64 i586)
    • libreadline5-5.2-147.29.1
  • SUSE Linux Enterprise Software Development Kit 11 SP4 (s390x x86_64 i586 ppc64 ia64)
    • readline-devel-5.2-147.29.1
  • SUSE Linux Enterprise Software Development Kit 11 SP4 (ppc64 s390x x86_64)
    • readline-devel-32bit-5.2-147.29.1
  • SUSE Linux Enterprise Server 11 SP4 (s390x x86_64 i586 ppc64 ia64)
    • bash-doc-3.2-147.29.1
    • readline-doc-5.2-147.29.1
    • libreadline5-5.2-147.29.1
    • bash-3.2-147.29.1
  • SUSE Linux Enterprise Server 11 SP4 (ia64)
    • bash-x86-3.2-147.29.1
    • libreadline5-x86-5.2-147.29.1
  • SUSE Linux Enterprise Server 11 SP4 (ppc64 s390x x86_64)
    • libreadline5-32bit-5.2-147.29.1
  • SLES for SAP Applications 11-SP4 (ppc64 x86_64)
    • readline-doc-5.2-147.29.1
    • libreadline5-32bit-5.2-147.29.1
    • bash-doc-3.2-147.29.1
    • libreadline5-5.2-147.29.1
    • bash-3.2-147.29.1

References: