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SUSE: 2014:1247-2 Important: Bash Environment Variable Issues

suse
Calendar Grey September 29, 2014
Dist Suse Esm H88
SUSE Patch addresses critical bash vulnerabilities concerning environment variable limits, effectively blocking potential remote access threats.
An update that fixes three vulnerabilities is now available

Summary

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.

References

#898346 #898603 #898604

Cross- CVE-2014-7169 CVE-2014-7186 CVE-2014-7187

Affected Products:

SUSE Manager 1.7 for SLE 11 SP2

https://www.suse.com/security/cve/CVE-2014-7169.html

https://www.suse.com/security/cve/CVE-2014-7186.html

https://www.suse.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

https://scc.suse.com:443/patches/

Severity
important
Lowest
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Medium
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Critical

Announcement ID: SUSE-SU-2014:1247-2
Rating: important

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