IBM Support

Security Bulletin: Vulnerabilities in Bash affect IBM SAN b-type Switches (CVE-2014-6271, CVE-2014-7169, CVE-2014-7186, CVE-2014-7187, CVE-2014-6277, CVE-2014-6278)

Security Bulletin


Summary

Six Bash vulnerabilities were disclosed in September 2014. This bulletin addresses the vulnerabilities that have been referred to as “Bash Bug” or “Shellshock” and two memory corruption vulnerabilities. Bash is used by IBM SAN b-type Switches.

Vulnerability Details

CVE-ID: CVE-2014-6271

DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary commands on the system, caused by an error when evaluating specially-crafted environment variables passed to it by the bash functionality. An attacker could exploit this vulnerability to write to files and execute arbitrary commands on the system.

CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96153 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)


CVE-ID: CVE-2014-7169

DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary commands on the system, caused by an incomplete fix related to malformed function definitions in the values of environment variables. An attacker could exploit this vulnerability using attack vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server to write to files and execute arbitrary commands on the system.

CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96209 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)


CVE-ID: CVE-2014-7186

DESCRIPTION: GNU Bash could allow a local attacker to execute arbitrary code on the system, caused by an out-of-bounds memory access while handling redir_stack. An attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.

CVSS Base Score: 4.6
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96237 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P)


CVE-ID: CVE-2014-7187

DESCRIPTION: GNU Bash could allow a local attacker to execute arbitrary code on the system, caused by an off-by-one-error when handling deeply nested flow control constructs. An attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.

CVSS Base Score: 4.6
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96238 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P)


CVE-2014-6277

DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary code on the system, caused by an incomplete fix related to the failure to properly parse function definitions in the values of environment variables. An attacker could exploit this vulnerability using attack vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server to execute arbitrary code on the system or cause a denial of service.

CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96686 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)


CVE-2014-6278

DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary code on the system, caused by an incomplete fix related to the parsing of user scripts. An attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.

CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96687 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)

Affected Products and Versions

IBM MTM:

2499-816IBM System Storage SAN768B-2
2499-416IBM System Storage SAN384B-2
2499-384IBM System Storage SAN768B
2499-192IBM System Storage SAN384B
2498-R06IBM System Storage SAN06B-R
2498-N96IBM System Networking SAN96B-5
2498-F96IBM System Networking SAN96B-5
2498-F48IBM System Storage SAN48B-5
2498-F24IBM System Networking SAN24B-5
2498-E32IBM Encryption Switch
2498-B80IBM System Storage SAN80B-4
2498-B40IBM System Storage SAN40B-4
2498-B24IBM System Storage SAN24B-4
2109-M48IBM TotalStorage SAN256B Director Model M48
2005-R04IBM System Storage SAN04B-R

Remediation/Fixes

IBM recommends that you remediate the Bash vulnerability by updating to one of the following fixes:

FOS 7.2.1c1 ftp://ftp.software.ibm.com/storage/san/b_type/fos_7.2.1c1
FOS 7.2.0d6ftp://ftp.software.ibm.com/storage/san/b_type/fos_7.2.0d6
FOS 7.1.2b1ftp://ftp.software.ibm.com/storage/san/b_type/fos_7.1.2b1
FOS 7.1.1c1 ftp://ftp.software.ibm.com/storage/san/b_type/fos_7.1.1c1
FOS 7.1.0cbftp://ftp.software.ibm.com/storage/san/b_type/fos_7.1.0cb
FOS 7.0.2e1ftp://ftp.software.ibm.com/storage/san/b_type/fos_7.0.2e1
FOS 7.0.0d1ftp://ftp.software.ibm.com/storage/san/b_type/fos_7.0.0d1
FOS 6.4.3f3 ftp://ftp.software.ibm.com/storage/san/b_type/fos_6.4.3f3
FOS 6.4.2a3ftp://ftp.software.ibm.com/storage/san/b_type/fos_6.4.2a3
FOS 6.2.2f9ftp://ftp.software.ibm.com/storage/san/b_type/fos_6.2.2f9

IBM recommends that you review your entire environment to identify vulnerable releases of Bash including your Operating Systems and take appropriate mitigation and remediation actions. Please contact your Operating System provider for more information.

Workarounds and Mitigations

None known

Important note: IBM strongly suggests that all System z customers subscribe to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

None

Change History

10 October 2014: Original Version Published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

[{"Product":{"code":"STMSAD","label":"Storage area network (SAN)->SAN768B-2 Fabric Backbone (2499-816)"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":"--","Platform":[{"code":"","label":"N\/A"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"","label":""}},{"Product":{"code":"STMSBR","label":"Storage area network (SAN)->SAN384B-2 Fabric Backbone (2499-416)"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":"N\/A"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"","label":""}},{"Product":{"code":"STUQVR","label":"IBM Storage Networking SAN32B-E4"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":" ","Platform":[{"code":"","label":"N\/A"}],"Version":"Version Independent","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"STNNL8","label":"IBM Storage Networking SAN24B-5"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":" ","Platform":[{"code":"","label":"N\/A"}],"Version":"Version Independent","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"STMSCJ","label":"Storage area network (SAN)->SAN48B-5 Switch (2498-F48)"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":"N\/A"}],"Version":"Version Independent","Edition":"","Line of Business":{"code":"","label":""}},{"Product":{"code":"STNNAB","label":"Storage area network (SAN)->SAN96B-5 Switch (2498-F96, N96)"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":"N\/A"}],"Version":"Version Independent","Edition":"","Line of Business":{"code":"","label":""}},{"Product":{"code":"SSH1AU9","label":"IBM Converged Switch (3758-B32)"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":" ","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"Version Independent","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"STMKQC","label":"SAN768B Fabric Backbone (2499-384)"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"","label":""}},{"Product":{"code":"STMKPN","label":"SAN384B Fabric Backbone (2499-192)"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"","label":""}},{"Product":{"code":"STMKTF","label":"SAN06B-R (2498-R06)"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"","label":""}},{"Product":{"code":"STNNL8","label":"IBM Storage Networking SAN24B"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"STMKSH","label":"SAN40B-4 Switch (2498-B40)"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"","label":""}},{"Product":{"code":"STMKSX","label":"SAN80B-4 Switch (2498-B80)"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"","label":""}}]

Product Synonym

SAN

Document Information

Modified date:
27 February 2023

UID

ssg1S1004933