Security update for bash

SUSE Security Update: Security update for bash
Announcement ID: SUSE-SU-2014:1247-2
Rating: important
References: #898346 #898603 #898604
Affected Products:
  • SUSE Manager 1.7 for SLE 11 SP2

  • An update that fixes three vulnerabilities is now available.

    Description:


    The command-line shell 'bash' evaluates environment variables, which
    allows the injection of characters and might be used to access files on
    the system in some circumstances (CVE-2014-7169).

    Please note that this issue is different from a previously fixed
    vulnerability tracked under CVE-2014-6271 and is less serious due to the
    special, non-default system configuration that is needed to create an
    exploitable situation.

    To remove further exploitation potential we now limit the
    function-in-environment variable to variables prefixed with BASH_FUNC_.
    This hardening feature is work in progress and might be improved in later
    updates.

    Additionally, two other security issues have been fixed:

    * CVE-2014-7186: Nested HERE documents could lead to a crash of bash.
    * CVE-2014-7187: Nesting of for loops could lead to a crash of bash.

    Security Issues:

    * CVE-2014-7169

    * CVE-2014-7186

    * CVE-2014-7187

    Patch Instructions:

    To install this SUSE Security Update use YaST online_update.
    Alternatively you can run the command listed for your product:

    • SUSE Manager 1.7 for SLE 11 SP2:
      zypper in -t patch sleman17sp2-bash-9779

    To bring your system up-to-date, use "zypper patch".

    Package List:

    • SUSE Manager 1.7 for SLE 11 SP2 (x86_64):
      • bash-3.2-147.14.22.1
      • bash-doc-3.2-147.14.22.1
      • libreadline5-32bit-5.2-147.14.22.1
      • libreadline5-5.2-147.14.22.1
      • readline-doc-5.2-147.14.22.1

    References:

    • http://support.novell.com/security/cve/CVE-2014-7169.html
    • http://support.novell.com/security/cve/CVE-2014-7186.html
    • http://support.novell.com/security/cve/CVE-2014-7187.html
    • https://bugzilla.suse.com/show_bug.cgi?id=898346
    • https://bugzilla.suse.com/show_bug.cgi?id=898603
    • https://bugzilla.suse.com/show_bug.cgi?id=898604
    • http://download.suse.com/patch/finder/?keywords=991d0956c7a6a53ad424c0964c1cbb84