bash
SUSE Security Update: bash
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 it 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.
Additionaly two more security issues were fixed in bash: 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.
| Announcement ID: | SUSE-SU-2014:1259-1 |
| Rating: | important |
| References: | #898346 #898603 #898604 |
| Affected Products: |
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 it 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.
Additionaly two more security issues were fixed in bash: 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.
Patch Instructions:
To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:
- SUSE Linux Enterprise Software Development Kit 12:
zypper in -t patch SUSE-SLE-SDK-12-2014-63 - SUSE Linux Enterprise Server 12:
zypper in -t patch SUSE-SLE-SERVER-12-2014-63 - SUSE Linux Enterprise Desktop 12:
zypper in -t patch SUSE-SLE-DESKTOP-12-2014-63 - 12:
zypper in -t patch SUSE-SLE-WE-12-2014-63
To bring your system up-to-date, use "zypper patch".
Package List:
- SUSE Linux Enterprise Software Development Kit 12 (ppc64le s390x x86_64):
- bash-debuginfo-4.2-81.1
- bash-debugsource-4.2-81.1
- bash-devel-4.2-81.1
- readline-devel-6.2-81.1
- SUSE Linux Enterprise Server 12 (ppc64le s390x x86_64):
- bash-4.2-81.1
- bash-debuginfo-4.2-81.1
- bash-debugsource-4.2-81.1
- libreadline6-6.2-81.1
- libreadline6-debuginfo-6.2-81.1
- SUSE Linux Enterprise Server 12 (noarch):
- bash-doc-4.2-81.1
- readline-doc-6.2-81.1
- SUSE Linux Enterprise Desktop 12 (x86_64):
- bash-4.2-81.1
- bash-debuginfo-4.2-81.1
- bash-debugsource-4.2-81.1
- libreadline6-6.2-81.1
- libreadline6-debuginfo-6.2-81.1
- SUSE Linux Enterprise Desktop 12 (noarch):
- bash-doc-4.2-81.1
- bash-lang-4.2-81.1
- readline-doc-6.2-81.1
- 12 (noarch):
- bash-lang-4.2-81.1
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