Security update for bash

SUSE Security Update: Security update for bash
Announcement ID: SUSE-SU-2018:1398-2
Rating: moderate
References: #1000396 #1001299 #1086247
Cross-References: CVE-2016-0634 CVE-2016-7543
Affected Products:
  • SUSE Linux Enterprise Server 12-SP2-BCL

An update that solves two vulnerabilities and has one errata is now available.

Description:

This update for bash fixes the following issues:
Security issues fixed:

  • CVE-2016-7543: A code execution possibility via SHELLOPTS+PS4 variable was fixed (bsc#1001299)
  • CVE-2016-0634: Arbitrary code execution via malicious hostname was fixed (bsc#1000396)

Non-security issues fixed:
  • Fix repeating self-calling of traps due the combination of a non-interactive shell, a trap handler for SIGINT, an external process in the trap handler, and a SIGINT within the trap after the external process runs. (bsc#1086247)

Patch Instructions:

To install this SUSE Security 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 Server 12-SP2-BCL:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2018-977=1

Package List:

  • SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
    • bash-4.3-83.10.1
    • bash-debuginfo-4.3-83.10.1
    • bash-debugsource-4.3-83.10.1
    • libreadline6-32bit-6.3-83.10.1
    • libreadline6-6.3-83.10.1
    • libreadline6-debuginfo-32bit-6.3-83.10.1
    • libreadline6-debuginfo-6.3-83.10.1
  • SUSE Linux Enterprise Server 12-SP2-BCL (noarch):
    • bash-doc-4.3-83.10.1
    • readline-doc-6.3-83.10.1

References: