Security Bulletin
Summary
WebSphere Process Server Hypervisor Edition might be vulnerable to CVE-2014-6271, CVE-2014-7169, CVE-2014-7186, CVE-2014-7187, CVE-2014-6277 and CVE-2014-6278 (shellshock) vulnerabilities in bash delivered by UNIX-based platforms.
Vulnerability Details
CVE-ID: CVE-2014-6271
DESCRIPTION:
GNU Bash might allow a remote attacker to execute arbitrary commands on the system, which is caused by an error when evaluating specially crafted environment variables passed to it by the bash functionality. An attacker might exploit this vulnerability to write to files and execute arbitrary commands on the system.
CVSS:
CVSS Base Score: 10.0
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/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 might allow a remote attacker to execute arbitrary commands on the system, which is caused by an incomplete fix related to malformed function definitions in the values of environment variables. An attacker might 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:
CVSS Base Score: 10.0
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/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 might allow a remote attacker to execute arbitrary code on the system, which is caused by an out-of-bounds memory access while handling redir_stack. An attacker might exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS:
CVSS Base Score: 10
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/96237 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-2014-7187
DESCRIPTION:
GNU Bash might allow a remote attacker to execute arbitrary code on the system, which is caused by an off-by-one-error when handling deeply nested flow control constructs. An attacker might exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS:
CVSS Base Score: 10
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/96238 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-2014-6277
DESCRIPTION:
GNU Bash might allow a remote attacker to execute arbitrary code on the system, which is caused by an incomplete fix related to the failure to properly parse function definitions in the values of environment variables. An attacker might 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:
CVSS Base Score: 10.0
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/96686 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-2014-6278
DESCRIPTION:
GNU Bash might allow a remote attacker to execute arbitrary code on the system, which is caused by an incomplete fix related to the parsing of user scripts. An attacker might exploit this vulnerability to execute arbitrary code on the system or cause a denial of service.
CVSS:
CVSS Base Score: 10.0
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/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
- WebSphere Process Server Hypervisor Edition 6.2
- WebSphere Process Server Hypervisor Edition 7.0
- WebSphere Process Server Hypervisor Edition for Novell SUSE Linux Enterprise Server for System z 6.2
- WebSphere Process Server Hypervisor Edition for Novell SUSE Linux Enterprise Server for System z 7.0
- WebSphere Process Server Hypervisor Edition for Red Hat Enterprise Linux Server for x86 (32-bit) 7.0
Remediation/Fixes
You mush upgrade bash from your operating system vendor.
Workarounds and Mitigations
None
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Important Note
IBM strongly suggests that all System z customers be subscribed 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.
References
Change History
31 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 Synonym
WPS
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Document Information
Modified date:
22 June 2018
UID
swg21687971